NAME

       Mat_VarReadNext — Reads the information and data for the next variable in a MATLAB MAT file.

SYNOPSIS

       #include <matio.h>

       matvar_t *
       Mat_VarReadNext(mat_t *matfp);

DESCRIPTION

       The  Mat_VarReadNext()  function  reads the information and data for the next variable stored in the open
       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.

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;
       }

SEE ALSO

       Mat_VarRead(3), Mat_VarReadNextInfo(3), Mat_VarPrint(3)

Debian                                         September 12, 2019                             MAT_VARREADNEXT(3)