NAME
Mat_VarGetNumberOfFields – Gets the number of fields for a structure variable.
SYNOPSIS
#include <matio.h>
unsigned
Mat_VarGetNumberOfFields(const matvar_t *matvar);
DESCRIPTION
The Mat_VarGetNumberOfFields() function returns the number of fields for the structure variable matvar.
RETURN VALUES
The number of fields will be returned on success, and 0 otherwise. Note also that a structure can validly contain 0 fields.