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MAT_VARREADNEXT(3) | Library Functions Manual | MAT_VARREADNEXT(3) |
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¶
TheMat_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 usesMat_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)April 21, 2011 | Linux 4.19.0-10-amd64 |