mxGetNumberOfFields (C and Fortran) - Get number of fields in structure mxArray
C Syntax
#include "matrix.h"
int mxGetNumberOfFields(const mxArray *pm);
Fortran Syntax
integer*4 mxGetNumberOfFields(pm)
mwPointer pm
Arguments
- pm
Pointer to a structure mxArray
Returns
Number of fields, on success. Returns 0 on
failure. The most common cause of failure is that pm is
not a structure mxArray. Call mxIsStruct to determine whether pm is
a structure.
Description
Call mxGetNumberOfFields to determine how
many fields are in the specified structure mxArray.
Once you know the number of fields in a structure, you can loop
through every field in order to set or to get field values.
C Examples
See phonebook.c
in the matlabroot/extern/examples/refbook folder
.
Additional examples:
See Also
mxGetField, mxIsStruct, mxSetField
 | mxGetNumberOfElements (C and Fortran) | | mxGetNzmax (C and Fortran) |  |
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