int sym_get_num_cols(sym_environment *env, int *numcols)
This routine is used to get the number of the columns of the current problem.
| sym_environment *env | IN | Pointer to the SYMPHONY environment. | 
| int *numcols | OUT | Pointer to an integer indicating the number of columns. | 
| FUNCTION_TERMINATED_ABNORMALLY | Function invoked unsuccessfully. | 
| FUNCTION_TERMINATED_NORMALLY | Function invoked successfully. |