netcdf-c/include/netcdf_aux.h
Dennis Heimbigner 40cd180957 Fix includes/netcdf_xxx.h files to not include ncexternl.h
re: https://github.com/Unidata/netcdf-c/issues/1502

If you plan to use any of the netcdf_XXX.h files, then it it is assumed
that you first include netcdf.h, followed by any netcdf_XXX.h files
you need. The EXTERNL (and other things) are defined in netcdf.h
so they should be available for use by the netcdf_XXX.h files.

This PR ensures that the above assumption is true.  It also adds
some comments to that effect to the start of the netcdf_xxx.h files.
2019-10-28 10:29:39 -06:00

63 lines
1.7 KiB
C

/*********************************************************************
* Copyright 2018, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
* $Id$
* $Header$
*********************************************************************/
/*
* In order to use any of the netcdf_XXX.h files, it is necessary
* to include netcdf.h followed by any netcdf_XXX.h files.
* Various things (like EXTERNL) are defined in netcdf.h
* to make them available for use by the netcdf_XXX.h files.
*/
#ifndef NCAUX_H
#define NCAUX_H
#define NCAUX_ALIGN_C 0
#define NCAUX_ALIGN_UNIFORM 1
#if defined(__cplusplus)
extern "C" {
#endif
/**
Reclaim the output tree of data from a call
to e.g. nc_get_vara or the input to e.g. nc_put_vara.
This recursively walks the top-level instances to
reclaim any nested data such as vlen or strings or such.
Assumes it is passed a pointer to count instances of xtype.
Reclaims any nested data.
WARNING: does not reclaim the top-level memory because
we do not know how it was allocated.
Should work for any netcdf format.
*/
EXTERNL int ncaux_reclaim_data(int ncid, int xtype, void* memory, size_t count);
EXTERNL int ncaux_begin_compound(int ncid, const char *name, int alignmode, void** tag);
EXTERNL int ncaux_end_compound(void* tag, nc_type* typeid);
EXTERNL int ncaux_abort_compound(void* tag);
EXTERNL int ncaux_add_field(void* tag, const char *name, nc_type field_type,
int ndims, const int* dimsizes);
/* Takes any type */
EXTERNL size_t ncaux_type_alignment(int xtype, int ncid);
/* Takes type classes only */
EXTERNL size_t ncaux_class_alignment(int ncclass);
#if defined(__cplusplus)
}
#endif
#endif /*NCAUX_H*/