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

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);

See Also