Mat_VarReadNext — Reads the information and data for the next variable in a MATLAB MAT file.
Contents
Description
The Mat_VarReadNext() function reads the information and data for the next variable stored in the open
MAT file.
Examples
This example program opens a MAT file named by the first argument to the program, and uses
Mat_VarReadNext() to read each variable in the file. For each variable read, the Mat_VarPrint(3)
function is used to display the information and data of the variable.
#include <stdlib.h>
#include <stdio.h>
#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;
}
while ( NULL != (matvar = Mat_VarReadNext(matfp)) ) {
Mat_VarPrint(matvar, 1);
Mat_VarFree(matvar);
}
Mat_Close(matfp);
return EXIT_SUCCESS;
}
Name
Mat_VarReadNext — Reads the information and data for the next variable in a MATLAB MAT file.
Return Values
If there is another variable in the MAT file and is read successfully, a pointer to the MATLAB variable
structure is returned. If there are no more variables, or there was an error reading the variable, NULL
is returned.
See Also
Mat_VarRead(3), Mat_VarReadNextInfo(3), Mat_VarPrint(3) Debian September 12, 2019 MAT_VARREADNEXT(3)
Synopsis
#include<matio.h>matvar_t*Mat_VarReadNext(mat_t*matfp);
