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MAT_VARREADINFO(3)    DragonFly Library Functions Manual    MAT_VARREADINFO(3)

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) DragonFly 5.7-DEVELOPMENT April 21, 2011 DragonFly 5.7-DEVELOPMENT

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