GS_DataConversion.c File Reference

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <limits.h>
#include <float.h>
#include <math.h>
#include <complex.h>
#include "bstrlib.h"
#include "gmalloc.h"
#include "H5ATTR.h"
#include "globals.h"

Macros
#define	RMIN   0
#define	RMAX   1

Functions
int	GS_InitializeNumberRanges (void)
	GS_InitializeNumberRanges initializes ranges for various types. More...
int	GS_DataConversion (int in_type, const void *in_buffer, int out_type, void *out_buffer, int nelements)
	GS_DataConversion converts a data buffer between different types. More...

Variables
long int	intranges [GS_DATATYPE_MAX+1][2]
double	floatranges [GS_DATATYPE_MAX+1][2]

Function Documentation

int GS_DataConversion	(	int	in_type,
		const void *	in_buffer,
		int	out_type,
		void *	out_buffer,
		int	nelements
	)

GS_DataConversion converts a data buffer between different types.

See also

GS_DatasetOpen(), GS_DatasetCreate(), GS_DatasetRead()

Parameters

[in]	in_type	The type of data in in_buffer. The valid datatypes are: GS_DATATYPE_UI1 (Unsigned Integer, 1-bit) GS_DATATYPE_UI8 (Unsigned Integer, 8-bit) GS_DATATYPE_SI8 (Signed Integer, 8-bit) GS_DATATYPE_CI8 (Complex Integer, 8-bit (not supported)) GS_DATATYPE_UI16 (Unsigned Integer, 16-bit) GS_DATATYPE_SI16 (Signed Integer, 16-bit) GS_DATATYPE_CI16 (Complex Integer, 16-bit) GS_DATATYPE_UI32 (Unsigned Integer, 32-bit) GS_DATATYPE_SI32 (Signed Integer, 32-bit) GS_DATATYPE_CI32 (Complex Integer, 32-bit) GS_DATATYPE_CI64 (Complex Integer, 64-bit) GS_DATATYPE_R32 (Real, 32-bit) GS_DATATYPE_R64 (Real, 64-bit) GS_DATATYPE_C64 (Complex, 64-bit) GS_DATATYPE_C128 (Complex, 128-bit) GS_DATATYPE_UI64 (Unsigned Integer, 64-bit) GS_DATATYPE_SI64 (Signed Integer, 64-bit)
[in]	in_buffer	The data we want to convert to a different type.
[in]	out_type	The type of data we want in out_buffer. Same valid datatypes as in in_type.
[in]	out_buffer	The destination of the converted data from in_buffer.
[in]	nelements	The number of elements to convert.

Returns

TRUE on sucess, FALSE on failure.

Example

We have a buffer that is 1000 ints, and we'd like to convert it to doubles.

int inbuf[1000];
double outbuf[1000];
if(!GS_DataConversion(GS_DATATYPE_SI32,inbuf,
                      GS_DATATYPE_R64, outbuf,1000)){
  printf("data conversion failed\n");
}
...here use outbuf...

Details

YET: data type conversions....

int GS_InitializeNumberRanges

(

void

)

GS_InitializeNumberRanges initializes ranges for various types.

GS_InitializeNumberRanges() initializes the ranges for each of the scalar number types used in GeoSci. This is needed during type conversions to avoid creating variables whose value is out-of-range.

See also

GS_DataConversion()

Returns

Returns TRUE on success, FALSE on failure.

Details

Initializes global variables intranges and floatranges to contain the minimum and maximum numbers possible for each datatype that GeoSci supports.