MAT_VARREADINFO(3) BSD Library Functions Manual MAT_VARREADINFO(3)NAMEMat_VarReadInfo — Read the information for a specific variable in a MAT‐
LAB 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 ALSOMat_VarRead(3), Mat_VarReadNextInfo(3)BSD April 21, 2011 BSD
