NAME¶
Mat_VarReadInfo
—
Read the information for a specific variable in a
MATLAB MAT file.
SYNOPSIS¶
#include
<matio.h>
matvar_t *
Mat_VarReadInfo
(
mat_t
*mat,
const char *name);
DESCRIPTION¶
The
Mat_VarReadInfo
() function reads the
information for the variable
name in the open
MAT file.
RETURN VALUES¶
If the variable was found in the MAT file and the information about the variable
successfully read, a pointer to the MATLAB variable structure is returned. If
the variable was not found, or there was an error reading the variable
information, NULL is returned.
EXAMPLES¶
#include "matio.h"
int
main(int argc,char **argv)
{
mat_t *matfp;
matvar_t *matvar;
matfp = Mat_Open(argv[1],MAT_ACC_RDONLY);
if ( NULL == matfp ) {
fprintf(stderr,"Error opening MAT file %s0,argv[1]);
return EXIT_FAILURE;
}
matvar = Mat_VarReadInfo(matfp,"x");
if ( NULL != matvar ) {
Mat_VarPrint(matvar);
Mat_VarFree(matvar);
}
Mat_Close(matfp);
return EXIT_SUCCESS;
}
SEE ALSO¶
Mat_VarRead(3),
Mat_VarReadNextInfo(3)