netcdf.h

Go to the documentation of this file.

 
#ifndef _NETCDF_
#define _NETCDF_
 
#include <stddef.h> /* size_t, ptrdiff_t */
#include <errno.h>  /* netcdf functions sometimes return system errors */
 
/* Required for alloca on Windows */
#if defined(_WIN32) || defined(_WIN64)
#include <malloc.h>
#endif

typedef int nc_type;
 
#if defined(__cplusplus)
extern "C" {
#endif
 
/*
 *  The netcdf external data types
 */
#define NC_NAT          0       
#define NC_BYTE         1       
#define NC_CHAR         2       
#define NC_SHORT        3       
#define NC_INT          4       
#define NC_LONG         NC_INT  
#define NC_FLOAT        5       
#define NC_DOUBLE       6       
#define NC_UBYTE        7       
#define NC_USHORT       8       
#define NC_UINT         9       
#define NC_INT64        10      
#define NC_UINT64       11      
#define NC_STRING       12      
 
#define NC_MAX_ATOMIC_TYPE NC_STRING 
 
/* The following are use internally in support of user-defines
 * types. They are also the class returned by nc_inq_user_type. */
#define NC_VLEN         13      
#define NC_OPAQUE       14      
#define NC_ENUM         15      
#define NC_COMPOUND     16      

#define NC_FIRSTUSERTYPEID 32

#define NC_FILL_BYTE    ((signed char)-127)
#define NC_FILL_CHAR    ((char)0)
#define NC_FILL_SHORT   ((short)-32767)
#define NC_FILL_INT     (-2147483647)
#define NC_FILL_FLOAT   (9.9692099683868690e+36f) /* near 15 * 2^119 */
#define NC_FILL_DOUBLE  (9.9692099683868690e+36)
#define NC_FILL_UBYTE   (255)
#define NC_FILL_USHORT  (65535)
#define NC_FILL_UINT    (4294967295U)
#define NC_FILL_INT64   ((long long)-9223372036854775806LL)
#define NC_FILL_UINT64  ((unsigned long long)18446744073709551614ULL)
#define NC_FILL_STRING  ((char *)"")

#define NC_MAX_BYTE 127
#define NC_MIN_BYTE (-NC_MAX_BYTE-1)
#define NC_MAX_CHAR 255
#define NC_MAX_SHORT 32767
#define NC_MIN_SHORT (-NC_MAX_SHORT - 1)
#define NC_MAX_INT 2147483647
#define NC_MIN_INT (-NC_MAX_INT - 1)
#define NC_MAX_FLOAT 3.402823466e+38f
#define NC_MIN_FLOAT (-NC_MAX_FLOAT)
#define NC_MAX_DOUBLE 1.7976931348623157e+308
#define NC_MIN_DOUBLE (-NC_MAX_DOUBLE)
#define NC_MAX_UBYTE NC_MAX_CHAR
#define NC_MAX_USHORT 65535U
#define NC_MAX_UINT 4294967295U
#define NC_MAX_INT64 (9223372036854775807LL)
#define NC_MIN_INT64 (-9223372036854775807LL-1)
#define NC_MAX_UINT64 (18446744073709551615ULL)

#ifdef NETCDF_ENABLE_LEGACY_MACROS
#define _FillValue      "_FillValue"
#endif
#define NC_FillValue      "_FillValue"
#define NC_FILL         0       
#define NC_NOFILL       0x100   
 
/* Define the ioflags bits for nc_create and nc_open.
   Currently unused in lower 16 bits:
        0x0002
   All upper 16 bits are unused except
        0x20000
        0x40000
*/
 
/* Lower 16 bits */
 
#define NC_NOWRITE       0x0000 
#define NC_WRITE         0x0001 
 
#define NC_CLOBBER       0x0000 
#define NC_NOCLOBBER     0x0004 
#define NC_DISKLESS      0x0008  
#define NC_MMAP          0x0010  
 
#define NC_64BIT_DATA    0x0020  
#define NC_CDF5          NC_64BIT_DATA  
 
#define NC_UDF0          0x0040  
#define NC_UDF1          0x0080  
 
#define NC_CLASSIC_MODEL 0x0100 
#define NC_64BIT_OFFSET  0x0200  

#define NC_LOCK          0x0400

#define NC_SHARE         0x0800
 
#define NC_NETCDF4       0x1000  

#define NC_MPIIO         0x2000 
#define NC_MPIPOSIX      NC_MPIIO 
#define NC_PNETCDF       (NC_MPIIO) 
 
#define NC_PERSIST       0x4000  
#define NC_INMEMORY      0x8000  
 
/* Upper 16 bits */
#define NC_NOATTCREORD  0x20000 
#define NC_NODIMSCALE_ATTACH 0x40000 
 
#define NC_MAX_MAGIC_NUMBER_LEN 8 

#define NC_FORMAT_CLASSIC         (1)
/* After adding CDF5 support, the NC_FORMAT_64BIT
   flag is somewhat confusing. So, it is renamed.
   Note that the name in the contributed code
   NC_FORMAT_64BIT was renamed to NC_FORMAT_CDF2
*/
#define NC_FORMAT_64BIT_OFFSET    (2)
#define NC_FORMAT_64BIT           (NC_FORMAT_64BIT_OFFSET) 
#define NC_FORMAT_NETCDF4         (3)
#define NC_FORMAT_NETCDF4_CLASSIC (4)
#define NC_FORMAT_64BIT_DATA      (5)
 
/* Alias */
#define NC_FORMAT_CDF5    NC_FORMAT_64BIT_DATA
 
/* Define a mask covering format flags only */
#define NC_FORMAT_ALL (NC_64BIT_OFFSET|NC_64BIT_DATA|NC_CLASSIC_MODEL|NC_NETCDF4|NC_UDF0|NC_UDF1)


 
#define NC_FORMATX_NC3       (1)
#define NC_FORMATX_NC_HDF5   (2) 
#define NC_FORMATX_NC4       NC_FORMATX_NC_HDF5 
#define NC_FORMATX_NC_HDF4   (3) 
#define NC_FORMATX_PNETCDF   (4)
#define NC_FORMATX_DAP2      (5)
#define NC_FORMATX_DAP4      (6)
#define NC_FORMATX_UDF0      (8)
#define NC_FORMATX_UDF1      (9)
#define NC_FORMATX_NCZARR    (10) 
#define NC_FORMATX_UNDEFINED (0)
 
  /* To avoid breaking compatibility (such as in the python library),
   we need to retain the NC_FORMAT_xxx format as well. This may come
  out eventually, as the NC_FORMATX is more clear that it's an extended
  format specifier.*/
 
#define NC_FORMAT_NC3       NC_FORMATX_NC3 
#define NC_FORMAT_NC_HDF5   NC_FORMATX_NC_HDF5 
#define NC_FORMAT_NC4       NC_FORMATX_NC4 
#define NC_FORMAT_NC_HDF4   NC_FORMATX_NC_HDF4 
#define NC_FORMAT_PNETCDF   NC_FORMATX_PNETCDF 
#define NC_FORMAT_DAP2      NC_FORMATX_DAP2 
#define NC_FORMAT_DAP4      NC_FORMATX_DAP4 
#define NC_FORMAT_UNDEFINED NC_FORMATX_UNDEFINED 
#define NC_FORMATX_ZARR     NC_FORMATX_NCZARR 


#define NC_SIZEHINT_DEFAULT 0

#define NC_ALIGN_CHUNK ((size_t)(-1))

#define NC_UNLIMITED 0L

#define NC_GLOBAL -1

#define NC_MAX_DIMS     1024 /* not enforced after 4.5.0 */
#define NC_MAX_ATTRS    8192 /* not enforced after 4.5.0 */
#define NC_MAX_VARS     8192 /* not enforced after 4.5.0 */
#define NC_MAX_NAME     256
#define NC_MAX_VAR_DIMS 1024 

#define NC_MAX_HDF4_NAME NC_MAX_NAME

#define NC_ENDIAN_NATIVE 0
#define NC_ENDIAN_LITTLE 1
#define NC_ENDIAN_BIG    2

#define NC_CHUNKED         0
#define NC_CONTIGUOUS      1
#define NC_COMPACT         2
#define NC_UNKNOWN_STORAGE 3
#define NC_VIRTUAL         4

#define NC_NOCHECKSUM 0
#define NC_FLETCHER32 1

#define NC_NOSHUFFLE 0
#define NC_SHUFFLE   1
 
#define NC_MIN_DEFLATE_LEVEL 0 
#define NC_MAX_DEFLATE_LEVEL 9 
 
#define NC_SZIP_NN 32 
#define NC_SZIP_EC 4  
 
#define NC_NOQUANTIZE 0     
#define NC_QUANTIZE_BITGROOM 1 
#define NC_QUANTIZE_GRANULARBR 2 
#define NC_QUANTIZE_BITROUND 3 

#define NC_QUANTIZE_BITGROOM_ATT_NAME "_QuantizeBitGroomNumberOfSignificantDigits"
#define NC_QUANTIZE_GRANULARBR_ATT_NAME "_QuantizeGranularBitRoundNumberOfSignificantDigits"
#define NC_QUANTIZE_BITROUND_ATT_NAME "_QuantizeBitRoundNumberOfSignificantBits"

#define NC_QUANTIZE_MAX_FLOAT_NSD (7)
#define NC_QUANTIZE_MAX_FLOAT_NSB (23)

#define NC_QUANTIZE_MAX_DOUBLE_NSD (15)
#define NC_QUANTIZE_MAX_DOUBLE_NSB (52)

#define NC_ISSYSERR(err)        ((err) > 0)
 
#define NC_NOERR        0          
#define NC2_ERR         (-1)       

#define NC_EBADID   (-33)
#define NC_ENFILE   (-34)      
#define NC_EEXIST   (-35)      
#define NC_EINVAL   (-36)      
#define NC_EPERM    (-37)      

#define NC_ENOTINDEFINE (-38)

#define NC_EINDEFINE    (-39)

#define NC_EINVALCOORDS (-40)

#define NC_EMAXDIMS (-41) /* not enforced after 4.5.0 */
 
#define NC_ENAMEINUSE   (-42)      
#define NC_ENOTATT  (-43)      
#define NC_EMAXATTS (-44)      
#define NC_EBADTYPE (-45)      
#define NC_EBADDIM  (-46)      
#define NC_EUNLIMPOS    (-47)      

#define NC_EMAXVARS (-48) /* not enforced after 4.5.0 */

#define NC_ENOTVAR  (-49)
#define NC_EGLOBAL  (-50)      
#define NC_ENOTNC   (-51)      
#define NC_ESTS         (-52)      
#define NC_EMAXNAME     (-53)      
#define NC_EUNLIMIT     (-54)      
#define NC_ENORECVARS   (-55)      
#define NC_ECHAR    (-56)      

#define NC_EEDGE        (-57)      
#define NC_ESTRIDE      (-58)      
#define NC_EBADNAME     (-59)      
/* N.B. following must match value in ncx.h */

#define NC_ERANGE       (-60)
#define NC_ENOMEM       (-61)      
#define NC_EVARSIZE     (-62)      
#define NC_EDIMSIZE     (-63)      
#define NC_ETRUNC       (-64)      
#define NC_EAXISTYPE    (-65)      
 
/* Following errors are added for DAP */
#define NC_EDAP         (-66)      
#define NC_ECURL        (-67)      
#define NC_EIO          (-68)      
#define NC_ENODATA      (-69)      
#define NC_EDAPSVC      (-70)      
#define NC_EDAS         (-71)      
#define NC_EDDS         (-72)      
#define NC_EDMR         NC_EDDS    
#define NC_EDATADDS     (-73)      
#define NC_EDATADAP     NC_EDATADDS    
#define NC_EDAPURL      (-74)      
#define NC_EDAPCONSTRAINT (-75)    
#define NC_ETRANSLATION (-76)      
#define NC_EACCESS      (-77)      
#define NC_EAUTH        (-78)      
 
/* Misc. additional errors */
#define NC_ENOTFOUND     (-90)      
#define NC_ECANTREMOVE   (-91)      
#define NC_EINTERNAL     (-92)      
#define NC_EPNETCDF      (-93)      
 
/* The following was added in support of netcdf-4. Make all netcdf-4
   error codes < -100 so that errors can be added to netcdf-3 if
   needed. */
#define NC4_FIRST_ERROR  (-100)    
#define NC_EHDFERR       (-101)    
#define NC_ECANTREAD     (-102)    
#define NC_ECANTWRITE    (-103)    
#define NC_ECANTCREATE   (-104)    
#define NC_EFILEMETA     (-105)    
#define NC_EDIMMETA      (-106)    
#define NC_EATTMETA      (-107)    
#define NC_EVARMETA      (-108)    
#define NC_ENOCOMPOUND   (-109)    
#define NC_EATTEXISTS    (-110)    
#define NC_ENOTNC4       (-111)    
#define NC_ESTRICTNC3    (-112)    
#define NC_ENOTNC3       (-113)    
#define NC_ENOPAR        (-114)    
#define NC_EPARINIT      (-115)    
#define NC_EBADGRPID     (-116)    
#define NC_EBADTYPID     (-117)    
#define NC_ETYPDEFINED   (-118)    
#define NC_EBADFIELD     (-119)    
#define NC_EBADCLASS     (-120)    
#define NC_EMAPTYPE      (-121)    
#define NC_ELATEFILL     (-122)    
#define NC_ELATEDEF      (-123)    
#define NC_EDIMSCALE     (-124)    
#define NC_ENOGRP        (-125)    
#define NC_ESTORAGE      (-126)    
#define NC_EBADCHUNK     (-127)    
#define NC_ENOTBUILT     (-128)    
#define NC_EDISKLESS     (-129)    
#define NC_ECANTEXTEND   (-130)    
#define NC_EMPI          (-131)    
 
#define NC_EFILTER       (-132)    
#define NC_ERCFILE       (-133)    
#define NC_ENULLPAD      (-134)    
#define NC_EINMEMORY     (-135)    
#define NC_ENOFILTER     (-136)    
#define NC_ENCZARR       (-137)    
#define NC_ES3           (-138)    
#define NC_EEMPTY        (-139)    
#define NC_EOBJECT       (-140)    
#define NC_ENOOBJECT     (-141)    
#define NC_EPLUGIN       (-142)    
 
#define NC4_LAST_ERROR   (-142)    
 
/*
 * Don't forget to update docs/all-error-codes.md if adding new error codes here!
 *
 */
 
/* Errors for all remote access methods(e.g. DAP and CDMREMOTE)*/
#define NC_EURL         (NC_EDAPURL)   
#define NC_ECONSTRAINT  (NC_EDAPCONSTRAINT)   

#define DIM_WITHOUT_VARIABLE "This is a netCDF dimension but not a netCDF variable."

#define NC_HAVE_NEW_CHUNKING_API 1
 
/*
 * The Interface
 */
 
/* Declaration modifiers for DLL support (MSC et al) */
#if defined(DLL_NETCDF) /* define when library is a DLL */
#  if defined(DLL_EXPORT) /* define when building the library */
#   define MSC_EXTRA __declspec(dllexport)
#  else
#   define MSC_EXTRA __declspec(dllimport)
#  endif
#  include <io.h>
#else
#define MSC_EXTRA  
#endif  /* defined(DLL_NETCDF) */
 
#define EXTERNL MSC_EXTRA extern 
 
#if defined(DLL_NETCDF) /* define when library is a DLL */
EXTERNL int ncerr;
EXTERNL int ncopts;
#endif
 
EXTERNL const char *
nc_inq_libvers(void);
 
EXTERNL const char *
nc_strerror(int ncerr);
 
/* Set up user-defined format. */
typedef struct NC_Dispatch NC_Dispatch;
EXTERNL int
nc_def_user_format(int mode_flag, NC_Dispatch *dispatch_table, char *magic_number);
 
EXTERNL int
nc_inq_user_format(int mode_flag, NC_Dispatch **dispatch_table, char *magic_number);
 
/* Set the global alignment property */
EXTERNL int
nc_set_alignment(int threshold, int alignment);
 
/* Get the global alignment property */
EXTERNL int
nc_get_alignment(int* thresholdp, int* alignmentp);
 
EXTERNL int
nc__create(const char *path, int cmode, size_t initialsz,
         size_t *chunksizehintp, int *ncidp);
 
EXTERNL int
nc_create(const char *path, int cmode, int *ncidp);
 
EXTERNL int
nc__open(const char *path, int mode,
        size_t *chunksizehintp, int *ncidp);
 
EXTERNL int
nc_open(const char *path, int mode, int *ncidp);
 
/* Learn the path used to open/create the file. */
EXTERNL int
nc_inq_path(int ncid, size_t *pathlen, char *path);
 
/* Given an ncid and group name (NULL gets root group), return
 * locid. */
EXTERNL int
nc_inq_ncid(int ncid, const char *name, int *grp_ncid);
 
/* Given a location id, return the number of groups it contains, and
 * an array of their locids. */
EXTERNL int
nc_inq_grps(int ncid, int *numgrps, int *ncids);
 
/* Given locid, find name of group. (Root group is named "/".) */
EXTERNL int
nc_inq_grpname(int ncid, char *name);
 
/* Given ncid, find full name and len of full name. (Root group is
 * named "/", with length 1.) */
EXTERNL int
nc_inq_grpname_full(int ncid, size_t *lenp, char *full_name);
 
/* Given ncid, find len of full name. */
EXTERNL int
nc_inq_grpname_len(int ncid, size_t *lenp);
 
/* Given an ncid, find the ncid of its parent group. */
EXTERNL int
nc_inq_grp_parent(int ncid, int *parent_ncid);
 
/* Given a name and parent ncid, find group ncid. */
EXTERNL int
nc_inq_grp_ncid(int ncid, const char *grp_name, int *grp_ncid);
 
/* Given a full name and ncid, find group ncid. */
EXTERNL int
nc_inq_grp_full_ncid(int ncid, const char *full_name, int *grp_ncid);
 
/* Get a list of ids for all the variables in a group. */
EXTERNL int
nc_inq_varids(int ncid, int *nvars, int *varids);
 
/* Find all dimids for a location. This finds all dimensions in a
 * group, or any of its parents. */
EXTERNL int
nc_inq_dimids(int ncid, int *ndims, int *dimids, int include_parents);
 
/* Find all user-defined types for a location. This finds all
 * user-defined types in a group. */
EXTERNL int
nc_inq_typeids(int ncid, int *ntypes, int *typeids);
 
/* Are two types equal? */
EXTERNL int
nc_inq_type_equal(int ncid1, nc_type typeid1, int ncid2,
                  nc_type typeid2, int *equal);
 
/* Create a group. its ncid is returned in the new_ncid pointer. */
EXTERNL int
nc_def_grp(int parent_ncid, const char *name, int *new_ncid);
 
/* Rename a group */
EXTERNL int
nc_rename_grp(int grpid, const char *name);
 
/* Here are functions for dealing with compound types. */
 
/* Create a compound type. */
EXTERNL int
nc_def_compound(int ncid, size_t size, const char *name, nc_type *typeidp);
 
/* Insert a named field into a compound type. */
EXTERNL int
nc_insert_compound(int ncid, nc_type xtype, const char *name,
                   size_t offset, nc_type field_typeid);
 
/* Insert a named array into a compound type. */
EXTERNL int
nc_insert_array_compound(int ncid, nc_type xtype, const char *name,
                         size_t offset, nc_type field_typeid,
                         int ndims, const int *dim_sizes);
 
/* Get the name and size of a type. */
EXTERNL int
nc_inq_type(int ncid, nc_type xtype, char *name, size_t *size);
 
/* Get the id of a type from the name, which might be a fully qualified name */
EXTERNL int
nc_inq_typeid(int ncid, const char *name, nc_type *typeidp);
 
/* Get the name, size, and number of fields in a compound type. */
EXTERNL int
nc_inq_compound(int ncid, nc_type xtype, char *name, size_t *sizep,
                size_t *nfieldsp);
 
/* Get the name of a compound type. */
EXTERNL int
nc_inq_compound_name(int ncid, nc_type xtype, char *name);
 
/* Get the size of a compound type. */
EXTERNL int
nc_inq_compound_size(int ncid, nc_type xtype, size_t *sizep);
 
/* Get the number of fields in this compound type. */
EXTERNL int
nc_inq_compound_nfields(int ncid, nc_type xtype, size_t *nfieldsp);
 
/* Given the xtype and the fieldid, get all info about it. */
EXTERNL int
nc_inq_compound_field(int ncid, nc_type xtype, int fieldid, char *name,
                      size_t *offsetp, nc_type *field_typeidp, int *ndimsp,
                      int *dim_sizesp);
 
/* Given the typeid and the fieldid, get the name. */
EXTERNL int
nc_inq_compound_fieldname(int ncid, nc_type xtype, int fieldid,
                          char *name);
 
/* Given the xtype and the name, get the fieldid. */
EXTERNL int
nc_inq_compound_fieldindex(int ncid, nc_type xtype, const char *name,
                           int *fieldidp);
 
/* Given the xtype and fieldid, get the offset. */
EXTERNL int
nc_inq_compound_fieldoffset(int ncid, nc_type xtype, int fieldid,
                            size_t *offsetp);
 
/* Given the xtype and the fieldid, get the type of that field. */
EXTERNL int
nc_inq_compound_fieldtype(int ncid, nc_type xtype, int fieldid,
                          nc_type *field_typeidp);
 
/* Given the xtype and the fieldid, get the number of dimensions for
 * that field (scalars are 0). */
EXTERNL int
nc_inq_compound_fieldndims(int ncid, nc_type xtype, int fieldid,
                           int *ndimsp);
 
/* Given the xtype and the fieldid, get the sizes of dimensions for
 * that field. User must have allocated storage for the dim_sizes. */
EXTERNL int
nc_inq_compound_fielddim_sizes(int ncid, nc_type xtype, int fieldid,
                               int *dim_sizes);

typedef struct {
    size_t len; 
    void *p;    
} nc_vlen_t;

#define NC_COMPOUND_OFFSET(S,M)    (offsetof(S,M))
 
/* Create a variable length type. */
EXTERNL int
nc_def_vlen(int ncid, const char *name, nc_type base_typeid, nc_type *xtypep);
 
/* Find out about a vlen. */
EXTERNL int
nc_inq_vlen(int ncid, nc_type xtype, char *name, size_t *datum_sizep,
            nc_type *base_nc_typep);
 
/* Put or get one element in a vlen array. */
EXTERNL int
nc_put_vlen_element(int ncid, int typeid1, void *vlen_element,
                    size_t len, const void *data);
 
EXTERNL int
nc_get_vlen_element(int ncid, int typeid1, const void *vlen_element,
                    size_t *len, void *data);
 
/* Find out about a user defined type. */
EXTERNL int
nc_inq_user_type(int ncid, nc_type xtype, char *name, size_t *size,
                 nc_type *base_nc_typep, size_t *nfieldsp, int *classp);
 
/* Write an attribute of any type. */
EXTERNL int
nc_put_att(int ncid, int varid, const char *name, nc_type xtype,
           size_t len, const void *op);
 
/* Read an attribute of any type. */
EXTERNL int
nc_get_att(int ncid, int varid, const char *name, void *ip);
 
/* Enum type. */
 
/* Create an enum type. Provide a base type and a name. At the moment
 * only ints are accepted as base types. */
EXTERNL int
nc_def_enum(int ncid, nc_type base_typeid, const char *name,
            nc_type *typeidp);
 
/* Insert a named value into an enum type. The value must fit within
 * the size of the enum type, the name size must be <= NC_MAX_NAME. */
EXTERNL int
nc_insert_enum(int ncid, nc_type xtype, const char *name,
               const void *value);
 
/* Get information about an enum type: its name, base type and the
 * number of members defined. */
EXTERNL int
nc_inq_enum(int ncid, nc_type xtype, char *name, nc_type *base_nc_typep,
            size_t *base_sizep, size_t *num_membersp);
 
/* Get information about an enum member: a name and value. Name size
 * will be <= NC_MAX_NAME. */
EXTERNL int
nc_inq_enum_member(int ncid, nc_type xtype, int idx, char *name,
                   void *value);
 
 
/* Get enum name from enum value. Name size will be <= NC_MAX_NAME. */
/* If value is zero and there is no matching ident, then return _UNDEFINED */
#define NC_UNDEFINED_ENUM_IDENT "_UNDEFINED"
 
EXTERNL int
nc_inq_enum_ident(int ncid, nc_type xtype, long long value, char *identifier);
 
/* Opaque type. */
 
/* Create an opaque type. Provide a size and a name. */
EXTERNL int
nc_def_opaque(int ncid, size_t size, const char *name, nc_type *xtypep);
 
/* Get information about an opaque type. */
EXTERNL int
nc_inq_opaque(int ncid, nc_type xtype, char *name, size_t *sizep);
 
/* Write entire var of any type. */
EXTERNL int
nc_put_var(int ncid, int varid,  const void *op);
 
/* Read entire var of any type. */
EXTERNL int
nc_get_var(int ncid, int varid,  void *ip);
 
/* Write one value. */
EXTERNL int
nc_put_var1(int ncid, int varid,  const size_t *indexp,
            const void *op);
 
/* Read one value. */
EXTERNL int
nc_get_var1(int ncid, int varid,  const size_t *indexp, void *ip);
 
/* Write an array of values. */
EXTERNL int
nc_put_vara(int ncid, int varid,  const size_t *startp,
            const size_t *countp, const void *op);
 
/* Read an array of values. */
EXTERNL int
nc_get_vara(int ncid, int varid,  const size_t *startp,
            const size_t *countp, void *ip);
 
/* Write slices of an array of values. */
EXTERNL int
nc_put_vars(int ncid, int varid,  const size_t *startp,
            const size_t *countp, const ptrdiff_t *stridep,
            const void *op);
 
/* Read slices of an array of values. */
EXTERNL int
nc_get_vars(int ncid, int varid,  const size_t *startp,
            const size_t *countp, const ptrdiff_t *stridep,
            void *ip);
 
/* Write mapped slices of an array of values. */
EXTERNL int
nc_put_varm(int ncid, int varid,  const size_t *startp,
            const size_t *countp, const ptrdiff_t *stridep,
            const ptrdiff_t *imapp, const void *op);
 
/* Read mapped slices of an array of values. */
EXTERNL int
nc_get_varm(int ncid, int varid,  const size_t *startp,
            const size_t *countp, const ptrdiff_t *stridep,
            const ptrdiff_t *imapp, void *ip);
 
/* Extra netcdf-4 stuff. */
 
/* Set quantization settings for a variable. Quantizing data improves
 * later compression. Must be called after nc_def_var and before
 * nc_enddef. */
EXTERNL int
nc_def_var_quantize(int ncid, int varid, int quantize_mode, int nsd);
 
/* Find out quantization settings of a var. */
EXTERNL int
nc_inq_var_quantize(int ncid, int varid, int *quantize_modep, int *nsdp);
 
/* Set compression settings for a variable. Lower is faster, higher is
 * better. Must be called after nc_def_var and before nc_enddef. */
EXTERNL int
nc_def_var_deflate(int ncid, int varid, int shuffle, int deflate,
                   int deflate_level);
 
/* Find out compression settings of a var. */
EXTERNL int
nc_inq_var_deflate(int ncid, int varid, int *shufflep,
                   int *deflatep, int *deflate_levelp);
 
/* Set szip compression for a variable. */
EXTERNL int nc_def_var_szip(int ncid, int varid, int options_mask,
                            int pixels_per_block);
 
/* Find out szip settings of a var. */
EXTERNL int
nc_inq_var_szip(int ncid, int varid, int *options_maskp, int *pixels_per_blockp);
 
/* Set fletcher32 checksum for a var. This must be done after nc_def_var
   and before nc_enddef. */
EXTERNL int
nc_def_var_fletcher32(int ncid, int varid, int fletcher32);
 
/* Inquire about fletcher32 checksum for a var. */
EXTERNL int
nc_inq_var_fletcher32(int ncid, int varid, int *fletcher32p);
 
/* Define chunking for a variable. This must be done after nc_def_var
   and before nc_enddef. */
EXTERNL int
nc_def_var_chunking(int ncid, int varid, int storage, const size_t *chunksizesp);
 
/* Inq chunking stuff for a var. */
EXTERNL int
nc_inq_var_chunking(int ncid, int varid, int *storagep, size_t *chunksizesp);
 
/* Define fill value behavior for a variable. This must be done after
   nc_def_var and before nc_enddef. */
EXTERNL int
nc_def_var_fill(int ncid, int varid, int no_fill, const void *fill_value);
 
/* Inq fill value setting for a var. */
EXTERNL int
nc_inq_var_fill(int ncid, int varid, int *no_fill, void *fill_valuep);
 
/* Define the endianness of a variable. */
EXTERNL int
nc_def_var_endian(int ncid, int varid, int endian);
 
/* Learn about the endianness of a variable. */
EXTERNL int
nc_inq_var_endian(int ncid, int varid, int *endianp);
 
/* Define a filter for a variable */
EXTERNL int
nc_def_var_filter(int ncid, int varid, unsigned int id, size_t nparams, const unsigned int* parms);
 
/* Learn about the first filter on a variable */
EXTERNL int
nc_inq_var_filter(int ncid, int varid, unsigned int* idp, size_t* nparams, unsigned int* params);
 
/* Set the fill mode (classic or 64-bit offset files only). */
EXTERNL int
nc_set_fill(int ncid, int fillmode, int *old_modep);
 
/* Set the default nc_create format to NC_FORMAT_CLASSIC, NC_FORMAT_64BIT,
 * NC_FORMAT_CDF5, NC_FORMAT_NETCDF4, or NC_FORMAT_NETCDF4_CLASSIC */
EXTERNL int
nc_set_default_format(int format, int *old_formatp);
 
/* Set the cache size, nelems, and preemption policy. */
EXTERNL int
nc_set_chunk_cache(size_t size, size_t nelems, float preemption);
 
/* Get the cache size, nelems, and preemption policy. */
EXTERNL int
nc_get_chunk_cache(size_t *sizep, size_t *nelemsp, float *preemptionp);
 
/* Set the per-variable cache size, nelems, and preemption policy. */
EXTERNL int
nc_set_var_chunk_cache(int ncid, int varid, size_t size, size_t nelems,
                       float preemption);
 
/* Get the per-variable cache size, nelems, and preemption policy. */
EXTERNL int
nc_get_var_chunk_cache(int ncid, int varid, size_t *sizep, size_t *nelemsp,
                       float *preemptionp);
 
EXTERNL int
nc_redef(int ncid);
 
/* Is this ever used? Convert to parameter form */
EXTERNL int
nc__enddef(int ncid, size_t h_minfree, size_t v_align,
        size_t v_minfree, size_t r_align);
 
EXTERNL int
nc_enddef(int ncid);
 
EXTERNL int
nc_sync(int ncid);
 
EXTERNL int
nc_abort(int ncid);
 
EXTERNL int
nc_close(int ncid);
 
EXTERNL int
nc_inq(int ncid, int *ndimsp, int *nvarsp, int *nattsp, int *unlimdimidp);
 
EXTERNL int
nc_inq_ndims(int ncid, int *ndimsp);
 
EXTERNL int
nc_inq_nvars(int ncid, int *nvarsp);
 
EXTERNL int
nc_inq_natts(int ncid, int *nattsp);
 
EXTERNL int
nc_inq_unlimdim(int ncid, int *unlimdimidp);
 
/* The next function is for NetCDF-4 only */
EXTERNL int
nc_inq_unlimdims(int ncid, int *nunlimdimsp, int *unlimdimidsp);
 
/* Added in 3.6.1 to return format of netCDF file. */
EXTERNL int
nc_inq_format(int ncid, int *formatp);
 
/* Added in 4.3.1 to return additional format info */
EXTERNL int
nc_inq_format_extended(int ncid, int *formatp, int* modep);
 
/* Begin _dim */
 
EXTERNL int
nc_def_dim(int ncid, const char *name, size_t len, int *idp);
 
EXTERNL int
nc_inq_dimid(int ncid, const char *name, int *idp);
 
EXTERNL int
nc_inq_dim(int ncid, int dimid, char *name, size_t *lenp);
 
EXTERNL int
nc_inq_dimname(int ncid, int dimid, char *name);
 
EXTERNL int
nc_inq_dimlen(int ncid, int dimid, size_t *lenp);
 
EXTERNL int
nc_rename_dim(int ncid, int dimid, const char *name);
 
/* End _dim */
/* Begin _att */
 
EXTERNL int
nc_inq_att(int ncid, int varid, const char *name,
           nc_type *xtypep, size_t *lenp);
 
EXTERNL int
nc_inq_attid(int ncid, int varid, const char *name, int *idp);
 
EXTERNL int
nc_inq_atttype(int ncid, int varid, const char *name, nc_type *xtypep);
 
EXTERNL int
nc_inq_attlen(int ncid, int varid, const char *name, size_t *lenp);
 
EXTERNL int
nc_inq_attname(int ncid, int varid, int attnum, char *name);
 
EXTERNL int
nc_copy_att(int ncid_in, int varid_in, const char *name, int ncid_out, int varid_out);
 
EXTERNL int
nc_rename_att(int ncid, int varid, const char *name, const char *newname);
 
EXTERNL int
nc_del_att(int ncid, int varid, const char *name);
 
/* End _att */
/* Begin {put,get}_att */
EXTERNL int
nc_put_att_text(int ncid, int varid, const char *name,
                size_t len, const char *op);
 
EXTERNL int
nc_get_att_text(int ncid, int varid, const char *name, char *ip);
 
EXTERNL int
nc_put_att_string(int ncid, int varid, const char *name,
                  size_t len, const char **op);
 
EXTERNL int
nc_get_att_string(int ncid, int varid, const char *name, char **ip);
 
EXTERNL int
nc_put_att_uchar(int ncid, int varid, const char *name, nc_type xtype,
                 size_t len, const unsigned char *op);
 
EXTERNL int
nc_get_att_uchar(int ncid, int varid, const char *name, unsigned char *ip);
 
EXTERNL int
nc_put_att_schar(int ncid, int varid, const char *name, nc_type xtype,
                 size_t len, const signed char *op);
 
EXTERNL int
nc_get_att_schar(int ncid, int varid, const char *name, signed char *ip);
 
EXTERNL int
nc_put_att_short(int ncid, int varid, const char *name, nc_type xtype,
                 size_t len, const short *op);
 
EXTERNL int
nc_get_att_short(int ncid, int varid, const char *name, short *ip);
 
EXTERNL int
nc_put_att_int(int ncid, int varid, const char *name, nc_type xtype,
               size_t len, const int *op);
 
EXTERNL int
nc_get_att_int(int ncid, int varid, const char *name, int *ip);
 
EXTERNL int
nc_put_att_long(int ncid, int varid, const char *name, nc_type xtype,
                size_t len, const long *op);
 
EXTERNL int
nc_get_att_long(int ncid, int varid, const char *name, long *ip);
 
EXTERNL int
nc_put_att_float(int ncid, int varid, const char *name, nc_type xtype,
                 size_t len, const float *op);
 
EXTERNL int
nc_get_att_float(int ncid, int varid, const char *name, float *ip);
 
EXTERNL int
nc_put_att_double(int ncid, int varid, const char *name, nc_type xtype,
                  size_t len, const double *op);
 
EXTERNL int
nc_get_att_double(int ncid, int varid, const char *name, double *ip);
 
EXTERNL int
nc_put_att_ushort(int ncid, int varid, const char *name, nc_type xtype,
                  size_t len, const unsigned short *op);
 
EXTERNL int
nc_get_att_ushort(int ncid, int varid, const char *name, unsigned short *ip);
 
EXTERNL int
nc_put_att_uint(int ncid, int varid, const char *name, nc_type xtype,
                size_t len, const unsigned int *op);
 
EXTERNL int
nc_get_att_uint(int ncid, int varid, const char *name, unsigned int *ip);
 
EXTERNL int
nc_put_att_longlong(int ncid, int varid, const char *name, nc_type xtype,
                 size_t len, const long long *op);
 
EXTERNL int
nc_get_att_longlong(int ncid, int varid, const char *name, long long *ip);
 
EXTERNL int
nc_put_att_ulonglong(int ncid, int varid, const char *name, nc_type xtype,
                     size_t len, const unsigned long long *op);
 
EXTERNL int
nc_get_att_ulonglong(int ncid, int varid, const char *name,
                     unsigned long long *ip);
 
 
/* End {put,get}_att */
/* Begin _var */
 
EXTERNL int
nc_def_var(int ncid, const char *name, nc_type xtype, int ndims,
           const int *dimidsp, int *varidp);
 
EXTERNL int
nc_inq_var(int ncid, int varid, char *name, nc_type *xtypep,
           int *ndimsp, int *dimidsp, int *nattsp);
 
EXTERNL int
nc_inq_varid(int ncid, const char *name, int *varidp);
 
EXTERNL int
nc_inq_varname(int ncid, int varid, char *name);
 
EXTERNL int
nc_inq_vartype(int ncid, int varid, nc_type *xtypep);
 
EXTERNL int
nc_inq_varndims(int ncid, int varid, int *ndimsp);
 
EXTERNL int
nc_inq_vardimid(int ncid, int varid, int *dimidsp);
 
EXTERNL int
nc_inq_varnatts(int ncid, int varid, int *nattsp);
 
EXTERNL int
nc_rename_var(int ncid, int varid, const char *name);
 
EXTERNL int
nc_copy_var(int ncid_in, int varid, int ncid_out);
 
#ifndef ncvarcpy
/* support the old name for now */
#define ncvarcpy(ncid_in, varid, ncid_out) ncvarcopy((ncid_in), (varid), (ncid_out))
#endif
 
/* End _var */
/* Begin {put,get}_var1 */
 
EXTERNL int
nc_put_var1_text(int ncid, int varid, const size_t *indexp, const char *op);
 
EXTERNL int
nc_get_var1_text(int ncid, int varid, const size_t *indexp, char *ip);
 
EXTERNL int
nc_put_var1_uchar(int ncid, int varid, const size_t *indexp,
                  const unsigned char *op);
 
EXTERNL int
nc_get_var1_uchar(int ncid, int varid, const size_t *indexp,
                  unsigned char *ip);
 
EXTERNL int
nc_put_var1_schar(int ncid, int varid, const size_t *indexp,
                  const signed char *op);
 
EXTERNL int
nc_get_var1_schar(int ncid, int varid, const size_t *indexp,
                  signed char *ip);
 
EXTERNL int
nc_put_var1_short(int ncid, int varid, const size_t *indexp,
                  const short *op);
 
EXTERNL int
nc_get_var1_short(int ncid, int varid, const size_t *indexp,
                  short *ip);
 
EXTERNL int
nc_put_var1_int(int ncid, int varid, const size_t *indexp, const int *op);
 
EXTERNL int
nc_get_var1_int(int ncid, int varid, const size_t *indexp, int *ip);
 
EXTERNL int
nc_put_var1_long(int ncid, int varid, const size_t *indexp, const long *op);
 
EXTERNL int
nc_get_var1_long(int ncid, int varid, const size_t *indexp, long *ip);
 
EXTERNL int
nc_put_var1_float(int ncid, int varid, const size_t *indexp, const float *op);
 
EXTERNL int
nc_get_var1_float(int ncid, int varid, const size_t *indexp, float *ip);
 
EXTERNL int
nc_put_var1_double(int ncid, int varid, const size_t *indexp, const double *op);
 
EXTERNL int
nc_get_var1_double(int ncid, int varid, const size_t *indexp, double *ip);
 
EXTERNL int
nc_put_var1_ushort(int ncid, int varid, const size_t *indexp,
                   const unsigned short *op);
 
EXTERNL int
nc_get_var1_ushort(int ncid, int varid, const size_t *indexp,
                   unsigned short *ip);
 
EXTERNL int
nc_put_var1_uint(int ncid, int varid, const size_t *indexp,
                 const unsigned int *op);
 
EXTERNL int
nc_get_var1_uint(int ncid, int varid, const size_t *indexp,
                 unsigned int *ip);
 
EXTERNL int
nc_put_var1_longlong(int ncid, int varid, const size_t *indexp,
                     const long long *op);
 
EXTERNL int
nc_get_var1_longlong(int ncid, int varid, const size_t *indexp,
                  long long *ip);
 
EXTERNL int
nc_put_var1_ulonglong(int ncid, int varid, const size_t *indexp,
                   const unsigned long long *op);
 
EXTERNL int
nc_get_var1_ulonglong(int ncid, int varid, const size_t *indexp,
                   unsigned long long *ip);
 
EXTERNL int
nc_put_var1_string(int ncid, int varid, const size_t *indexp,
                   const char **op);
 
EXTERNL int
nc_get_var1_string(int ncid, int varid, const size_t *indexp,
                   char **ip);
 
/* End {put,get}_var1 */
/* Begin {put,get}_vara */
 
EXTERNL int
nc_put_vara_text(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const char *op);
 
EXTERNL int
nc_get_vara_text(int ncid, int varid, const size_t *startp,
                 const size_t *countp, char *ip);
 
EXTERNL int
nc_put_vara_uchar(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const unsigned char *op);
 
EXTERNL int
nc_get_vara_uchar(int ncid, int varid, const size_t *startp,
                  const size_t *countp, unsigned char *ip);
 
EXTERNL int
nc_put_vara_schar(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const signed char *op);
 
EXTERNL int
nc_get_vara_schar(int ncid, int varid, const size_t *startp,
                  const size_t *countp, signed char *ip);
 
EXTERNL int
nc_put_vara_short(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const short *op);
 
EXTERNL int
nc_get_vara_short(int ncid, int varid, const size_t *startp,
                  const size_t *countp, short *ip);
 
EXTERNL int
nc_put_vara_int(int ncid, int varid, const size_t *startp,
                const size_t *countp, const int *op);
 
EXTERNL int
nc_get_vara_int(int ncid, int varid, const size_t *startp,
                const size_t *countp, int *ip);
 
EXTERNL int
nc_put_vara_long(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const long *op);
 
EXTERNL int
nc_get_vara_long(int ncid, int varid,
        const size_t *startp, const size_t *countp, long *ip);
 
EXTERNL int
nc_put_vara_float(int ncid, int varid,
        const size_t *startp, const size_t *countp, const float *op);
 
EXTERNL int
nc_get_vara_float(int ncid, int varid,
        const size_t *startp, const size_t *countp, float *ip);
 
EXTERNL int
nc_put_vara_double(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const double *op);
 
EXTERNL int
nc_get_vara_double(int ncid, int varid, const size_t *startp,
                   const size_t *countp, double *ip);
 
EXTERNL int
nc_put_vara_ushort(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const unsigned short *op);
 
EXTERNL int
nc_get_vara_ushort(int ncid, int varid, const size_t *startp,
                   const size_t *countp, unsigned short *ip);
 
EXTERNL int
nc_put_vara_uint(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const unsigned int *op);
 
EXTERNL int
nc_get_vara_uint(int ncid, int varid, const size_t *startp,
                 const size_t *countp, unsigned int *ip);
 
EXTERNL int
nc_put_vara_longlong(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const long long *op);
 
EXTERNL int
nc_get_vara_longlong(int ncid, int varid, const size_t *startp,
                  const size_t *countp, long long *ip);
 
EXTERNL int
nc_put_vara_ulonglong(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const unsigned long long *op);
 
EXTERNL int
nc_get_vara_ulonglong(int ncid, int varid, const size_t *startp,
                   const size_t *countp, unsigned long long *ip);
 
EXTERNL int
nc_put_vara_string(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const char **op);
 
EXTERNL int
nc_get_vara_string(int ncid, int varid, const size_t *startp,
                   const size_t *countp, char **ip);
 
/* End {put,get}_vara */
/* Begin {put,get}_vars */
 
EXTERNL int
nc_put_vars_text(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        const char *op);
 
EXTERNL int
nc_get_vars_text(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        char *ip);
 
EXTERNL int
nc_put_vars_uchar(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        const unsigned char *op);
 
EXTERNL int
nc_get_vars_uchar(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        unsigned char *ip);
 
EXTERNL int
nc_put_vars_schar(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        const signed char *op);
 
EXTERNL int
nc_get_vars_schar(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        signed char *ip);
 
EXTERNL int
nc_put_vars_short(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        const short *op);
 
EXTERNL int
nc_get_vars_short(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  short *ip);
 
EXTERNL int
nc_put_vars_int(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        const int *op);
 
EXTERNL int
nc_get_vars_int(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        int *ip);
 
EXTERNL int
nc_put_vars_long(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        const long *op);
 
EXTERNL int
nc_get_vars_long(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        long *ip);
 
EXTERNL int
nc_put_vars_float(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        const float *op);
 
EXTERNL int
nc_get_vars_float(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        float *ip);
 
EXTERNL int
nc_put_vars_double(int ncid, int varid,
        const size_t *startp, const size_t *countp, const ptrdiff_t *stridep,
        const double *op);
 
EXTERNL int
nc_get_vars_double(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   double *ip);
 
EXTERNL int
nc_put_vars_ushort(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const unsigned short *op);
 
EXTERNL int
nc_get_vars_ushort(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   unsigned short *ip);
 
EXTERNL int
nc_put_vars_uint(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const ptrdiff_t *stridep,
                 const unsigned int *op);
 
EXTERNL int
nc_get_vars_uint(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const ptrdiff_t *stridep,
                 unsigned int *ip);
 
EXTERNL int
nc_put_vars_longlong(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const long long *op);
 
EXTERNL int
nc_get_vars_longlong(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  long long *ip);
 
EXTERNL int
nc_put_vars_ulonglong(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const unsigned long long *op);
 
EXTERNL int
nc_get_vars_ulonglong(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   unsigned long long *ip);
 
EXTERNL int
nc_put_vars_string(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const char **op);
 
EXTERNL int
nc_get_vars_string(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   char **ip);
 
/* End {put,get}_vars */
/* Begin {put,get}_varm */
 
EXTERNL int
nc_put_varm_text(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const ptrdiff_t *stridep,
                 const ptrdiff_t *imapp, const char *op);
 
EXTERNL int
nc_get_varm_text(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const ptrdiff_t *stridep,
                 const ptrdiff_t *imapp, char *ip);
 
EXTERNL int
nc_put_varm_uchar(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t *imapp, const unsigned char *op);
 
EXTERNL int
nc_get_varm_uchar(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t *imapp, unsigned char *ip);
 
EXTERNL int
nc_put_varm_schar(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t *imapp, const signed char *op);
 
EXTERNL int
nc_get_varm_schar(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t *imapp, signed char *ip);
 
EXTERNL int
nc_put_varm_short(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t *imapp, const short *op);
 
EXTERNL int
nc_get_varm_short(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t *imapp, short *ip);
 
EXTERNL int
nc_put_varm_int(int ncid, int varid, const size_t *startp,
                const size_t *countp, const ptrdiff_t *stridep,
                const ptrdiff_t *imapp, const int *op);
 
EXTERNL int
nc_get_varm_int(int ncid, int varid, const size_t *startp,
                const size_t *countp, const ptrdiff_t *stridep,
                const ptrdiff_t *imapp, int *ip);
 
EXTERNL int
nc_put_varm_long(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const ptrdiff_t *stridep,
                 const ptrdiff_t *imapp, const long *op);
 
EXTERNL int
nc_get_varm_long(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const ptrdiff_t *stridep,
                 const ptrdiff_t *imapp, long *ip);
 
EXTERNL int
nc_put_varm_float(int ncid, int varid,const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t *imapp, const float *op);
 
EXTERNL int
nc_get_varm_float(int ncid, int varid,const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t *imapp, float *ip);
 
EXTERNL int
nc_put_varm_double(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const ptrdiff_t *imapp, const double *op);
 
EXTERNL int
nc_get_varm_double(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const ptrdiff_t * imapp, double *ip);
 
EXTERNL int
nc_put_varm_ushort(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const ptrdiff_t * imapp, const unsigned short *op);
 
EXTERNL int
nc_get_varm_ushort(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const ptrdiff_t * imapp, unsigned short *ip);
 
EXTERNL int
nc_put_varm_uint(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const ptrdiff_t *stridep,
                 const ptrdiff_t * imapp, const unsigned int *op);
 
EXTERNL int
nc_get_varm_uint(int ncid, int varid, const size_t *startp,
                 const size_t *countp, const ptrdiff_t *stridep,
                 const ptrdiff_t * imapp, unsigned int *ip);
 
EXTERNL int
nc_put_varm_longlong(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t * imapp, const long long *op);
 
EXTERNL int
nc_get_varm_longlong(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t * imapp, long long *ip);
 
EXTERNL int
nc_put_varm_ulonglong(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const ptrdiff_t * imapp, const unsigned long long *op);
 
EXTERNL int
nc_get_varm_ulonglong(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const ptrdiff_t * imapp, unsigned long long *ip);
 
EXTERNL int
nc_put_varm_string(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const ptrdiff_t * imapp, const char **op);
 
EXTERNL int
nc_get_varm_string(int ncid, int varid, const size_t *startp,
                   const size_t *countp, const ptrdiff_t *stridep,
                   const ptrdiff_t * imapp, char **ip);
 
/* End {put,get}_varm */
/* Begin {put,get}_var */
 
EXTERNL int
nc_put_var_text(int ncid, int varid, const char *op);
 
EXTERNL int
nc_get_var_text(int ncid, int varid, char *ip);
 
EXTERNL int
nc_put_var_uchar(int ncid, int varid, const unsigned char *op);
 
EXTERNL int
nc_get_var_uchar(int ncid, int varid, unsigned char *ip);
 
EXTERNL int
nc_put_var_schar(int ncid, int varid, const signed char *op);
 
EXTERNL int
nc_get_var_schar(int ncid, int varid, signed char *ip);
 
EXTERNL int
nc_put_var_short(int ncid, int varid, const short *op);
 
EXTERNL int
nc_get_var_short(int ncid, int varid, short *ip);
 
EXTERNL int
nc_put_var_int(int ncid, int varid, const int *op);
 
EXTERNL int
nc_get_var_int(int ncid, int varid, int *ip);
 
EXTERNL int
nc_put_var_long(int ncid, int varid, const long *op);
 
EXTERNL int
nc_get_var_long(int ncid, int varid, long *ip);
 
EXTERNL int
nc_put_var_float(int ncid, int varid, const float *op);
 
EXTERNL int
nc_get_var_float(int ncid, int varid, float *ip);
 
EXTERNL int
nc_put_var_double(int ncid, int varid, const double *op);
 
EXTERNL int
nc_get_var_double(int ncid, int varid, double *ip);
 
EXTERNL int
nc_put_var_ushort(int ncid, int varid, const unsigned short *op);
 
EXTERNL int
nc_get_var_ushort(int ncid, int varid, unsigned short *ip);
 
EXTERNL int
nc_put_var_uint(int ncid, int varid, const unsigned int *op);
 
EXTERNL int
nc_get_var_uint(int ncid, int varid, unsigned int *ip);
 
EXTERNL int
nc_put_var_longlong(int ncid, int varid, const long long *op);
 
EXTERNL int
nc_get_var_longlong(int ncid, int varid, long long *ip);
 
EXTERNL int
nc_put_var_ulonglong(int ncid, int varid, const unsigned long long *op);
 
EXTERNL int
nc_get_var_ulonglong(int ncid, int varid, unsigned long long *ip);
 
EXTERNL int
nc_put_var_string(int ncid, int varid, const char **op);
 
EXTERNL int
nc_get_var_string(int ncid, int varid, char **ip);
 
/* Begin instance walking functions */
 
/* When you read an array of string typed instances, the library will allocate
 * the storage space for the strings in the array (but not the array itself).
 * The strings must be freed eventually, so pass the pointer to the array plus
 * the number of elements in the array to this function when you're done with
 * the data, and it will free the all the string instances.
 * The caller is still responsible for free'ing the array itself,
 * if it was dynamically allocated.
 */
EXTERNL int
nc_free_string(size_t nelems, char **data);
 
/* When you read an array of VLEN typed instances, the library will allocate
 * the storage space for the data in each VLEN in the array (but not the array itself).
 * That VLEN data must be freed eventually, so pass the pointer to the array plus
 * the number of elements in the array to this function when you're done with
 * the data, and it will free the all the VLEN instances.
 * The caller is still responsible for free'ing the array itself,
 * if it was dynamically allocated.
 *
 * WARNING: this function only works if the basetype of the vlen type
 * is fixed size. This means it is an atomic type except NC_STRING,
 * or an NC_ENUM, or and NC_OPAQUE, or an NC_COMPOUND where all
 * the fields of the compound type are themselves fixed size.
 */
EXTERNL int
nc_free_vlens(size_t nelems, nc_vlen_t vlens[]);
 
/* This function is a special case of "nc_free_vlens" where nelem == 1 */
EXTERNL int
nc_free_vlen(nc_vlen_t *vl);

 
EXTERNL int nc_reclaim_data(int ncid, nc_type xtypeid, void* memory, size_t nelems);
EXTERNL int nc_reclaim_data_all(int ncid, nc_type xtypeid, void* memory, size_t nelems);

 
EXTERNL int nc_copy_data(int ncid, nc_type xtypeid, const void* memory, size_t count, void* copy);
EXTERNL int nc_copy_data_all(int ncid, nc_type xtypeid, const void* memory, size_t count, void** copyp);
 
/* end recursive instance walking functions */
 
/* Begin Deprecated, same as functions with "_ubyte" replaced by "_uchar" */
EXTERNL int
nc_put_att_ubyte(int ncid, int varid, const char *name, nc_type xtype,
                 size_t len, const unsigned char *op);
EXTERNL int
nc_get_att_ubyte(int ncid, int varid, const char *name,
                 unsigned char *ip);
EXTERNL int
nc_put_var1_ubyte(int ncid, int varid, const size_t *indexp,
                  const unsigned char *op);
EXTERNL int
nc_get_var1_ubyte(int ncid, int varid, const size_t *indexp,
                  unsigned char *ip);
EXTERNL int
nc_put_vara_ubyte(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const unsigned char *op);
EXTERNL int
nc_get_vara_ubyte(int ncid, int varid, const size_t *startp,
                  const size_t *countp, unsigned char *ip);
EXTERNL int
nc_put_vars_ubyte(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const unsigned char *op);
EXTERNL int
nc_get_vars_ubyte(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  unsigned char *ip);
EXTERNL int
nc_put_varm_ubyte(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t * imapp, const unsigned char *op);
EXTERNL int
nc_get_varm_ubyte(int ncid, int varid, const size_t *startp,
                  const size_t *countp, const ptrdiff_t *stridep,
                  const ptrdiff_t * imapp, unsigned char *ip);
EXTERNL int
nc_put_var_ubyte(int ncid, int varid, const unsigned char *op);
 
EXTERNL int
nc_get_var_ubyte(int ncid, int varid, unsigned char *ip);
 
/* End Deprecated */
 
/* Set the log level. 0 shows only errors, 1 only major messages,
 * etc., to 5, which shows way too much information. */
EXTERNL int
nc_set_log_level(int new_level);
 
/* Use this to turn off logging by calling
   nc_log_level(NC_TURN_OFF_LOGGING) */
#define NC_TURN_OFF_LOGGING (-1)
 
/* Show the netCDF library's in-memory metadata for a file. */
EXTERNL int
nc_show_metadata(int ncid);
 
/* End {put,get}_var */
 
/* Delete a file. */
EXTERNL int
nc_delete(const char *path);
 
/*
 * The following functions were written to accommodate the old Cray
 * systems. Modern HPC systems do not use these functions any more,
 * but use the nc_open_par()/nc_create_par() functions instead. These
 * functions are retained for backward compatibibility. These
 * functions work as advertised, but you can only use "processor
 * element" 0.
 */
 
EXTERNL int
nc__create_mp(const char *path, int cmode, size_t initialsz, int basepe,
         size_t *chunksizehintp, int *ncidp);
 
EXTERNL int
nc__open_mp(const char *path, int mode, int basepe,
        size_t *chunksizehintp, int *ncidp);
 
EXTERNL int
nc_delete_mp(const char *path, int basepe);
 
EXTERNL int
nc_set_base_pe(int ncid, int pe);
 
EXTERNL int
nc_inq_base_pe(int ncid, int *pe);
 
/* This v2 function is used in the nc_test program. */
EXTERNL int
nctypelen(nc_type datatype);
 
/* Begin v2.4 backward compatibility */

#define FILL_BYTE       NC_FILL_BYTE
#define FILL_CHAR       NC_FILL_CHAR
#define FILL_SHORT      NC_FILL_SHORT
#define FILL_LONG       NC_FILL_INT
#define FILL_FLOAT      NC_FILL_FLOAT
#define FILL_DOUBLE     NC_FILL_DOUBLE
 
#define MAX_NC_DIMS     NC_MAX_DIMS
#define MAX_NC_ATTRS    NC_MAX_ATTRS
#define MAX_NC_VARS     NC_MAX_VARS
#define MAX_NC_NAME     NC_MAX_NAME
#define MAX_VAR_DIMS    NC_MAX_VAR_DIMS
 
 
/*
 * Global error status
 */
EXTERNL int ncerr;
 
#define NC_ENTOOL       NC_EMAXNAME   
#define NC_EXDR         (-32)   
#define NC_SYSERR       (-31)   
 
/*
 * Global options variable.
 * Used to determine behavior of error handler.
 */
#define NC_FATAL        1  
#define NC_VERBOSE      2  

EXTERNL int ncopts;
 
EXTERNL void
nc_advise(const char *cdf_routine_name, int err, const char *fmt,...);

typedef int nclong;
 
EXTERNL int
nccreate(const char* path, int cmode);
 
EXTERNL int
ncopen(const char* path, int mode);
 
EXTERNL int
ncsetfill(int ncid, int fillmode);
 
EXTERNL int
ncredef(int ncid);
 
EXTERNL int
ncendef(int ncid);
 
EXTERNL int
ncsync(int ncid);
 
EXTERNL int
ncabort(int ncid);
 
EXTERNL int
ncclose(int ncid);
 
EXTERNL int
ncinquire(int ncid, int *ndimsp, int *nvarsp, int *nattsp, int *unlimdimp);
 
EXTERNL int
ncdimdef(int ncid, const char *name, long len);
 
EXTERNL int
ncdimid(int ncid, const char *name);
 
EXTERNL int
ncdiminq(int ncid, int dimid, char *name, long *lenp);
 
EXTERNL int
ncdimrename(int ncid, int dimid, const char *name);
 
EXTERNL int
ncattput(int ncid, int varid, const char *name, nc_type xtype,
        int len, const void *op);
 
EXTERNL int
ncattinq(int ncid, int varid, const char *name, nc_type *xtypep, int *lenp);
 
EXTERNL int
ncattget(int ncid, int varid, const char *name, void *ip);
 
EXTERNL int
ncattcopy(int ncid_in, int varid_in, const char *name, int ncid_out,
        int varid_out);
 
EXTERNL int
ncattname(int ncid, int varid, int attnum, char *name);
 
EXTERNL int
ncattrename(int ncid, int varid, const char *name, const char *newname);
 
EXTERNL int
ncattdel(int ncid, int varid, const char *name);
 
EXTERNL int
ncvardef(int ncid, const char *name, nc_type xtype,
        int ndims, const int *dimidsp);
 
EXTERNL int
ncvarid(int ncid, const char *name);
 
EXTERNL int
ncvarinq(int ncid, int varid, char *name, nc_type *xtypep,
        int *ndimsp, int *dimidsp, int *nattsp);
 
EXTERNL int
ncvarput1(int ncid, int varid, const long *indexp, const void *op);
 
EXTERNL int
ncvarget1(int ncid, int varid, const long *indexp, void *ip);
 
EXTERNL int
ncvarput(int ncid, int varid, const long *startp, const long *countp,
        const void *op);
 
EXTERNL int
ncvarget(int ncid, int varid, const long *startp, const long *countp,
        void *ip);
 
EXTERNL int
ncvarputs(int ncid, int varid, const long *startp, const long *countp,
        const long *stridep, const void *op);
 
EXTERNL int
ncvargets(int ncid, int varid, const long *startp, const long *countp,
        const long *stridep, void *ip);
 
EXTERNL int
ncvarputg(int ncid, int varid, const long *startp, const long *countp,
        const long *stridep, const long *imapp, const void *op);
 
EXTERNL int
ncvargetg(int ncid, int varid, const long *startp, const long *countp,
        const long *stridep, const long *imapp, void *ip);
 
EXTERNL int
ncvarrename(int ncid, int varid, const char *name);
 
EXTERNL int
ncrecinq(int ncid, int *nrecvarsp, int *recvaridsp, long *recsizesp);
 
EXTERNL int
ncrecget(int ncid, long recnum, void **datap);
 
EXTERNL int
ncrecput(int ncid, long recnum, void *const *datap);
 
/* This function may be called to force the library to
   initialize itself. It is not required, however.
*/
EXTERNL int nc_initialize(void);
 
/* This function may be called to force the library to
   cleanup global memory so that memory checkers will not
   report errors. It is not required, however.
*/
EXTERNL int nc_finalize(void);
 
/* Programmatic access to the internal .rc table */
 
/* Get the value corresponding to key | return NULL; caller frees  result */
EXTERNL char* nc_rc_get(const char* key);
 
/* Set/overwrite the value corresponding to key */
EXTERNL int nc_rc_set(const char* key, const char* value);
 
#if defined(__cplusplus)
}
#endif
 
/* Define two hard-coded functionality-related
   (as requested by community developers) macros.
   This is not going to be standard practice.
   Don't remove without an in-place replacement of some sort,
   the are now (for better or worse) used by downstream
   software external to Unidata. */
#ifndef NC_HAVE_RENAME_GRP
#define NC_HAVE_RENAME_GRP 
#endif
 
#ifndef NC_HAVE_INQ_FORMAT_EXTENDED
#define NC_HAVE_INQ_FORMAT_EXTENDED 
#endif
 
#define NC_HAVE_META_H
 
#endif /* _NETCDF_ */