Function gmtlib_count_objects

src/gmt_api.c:8316–8333

! . */

/*! . */
unsigned int gmtlib_count_objects (struct GMTAPI_CTRL *API, enum GMT_enum_family family, unsigned int geometry, unsigned int direction, int *first_ID) {
	/* Count how many data sets of the given family are currently registered and unused for the given direction (GMT_IN|GMT_OUT).
 	 * Also return the ID of the first unused data object for the given direction, geometry, and family (GMT_NOTSET if not found).
	 */
	unsigned int i, n;

	*first_ID = GMT_NOTSET;	/* Not found yet */
	for (i = n = 0; i < API->n_objects; i++) {
		if (!API->object[i]) continue;	 /* A freed object, skip it */
		if (API->object[i]->direction != (enum GMT_enum_std)direction) continue;	  /* Wrong direction */
		if (API->object[i]->geometry  != (enum GMT_enum_geometry)geometry) continue;	  /* Wrong geometry */
		if (API->object[i]->status    != GMT_IS_UNUSED) continue; /* Already used */
		if (family != API->object[i]->family) continue;		  /* Wrong data type */
		n++;	/* Found one that satisfied requirements */
		if (*first_ID == GMT_NOTSET) *first_ID = API->object[i]->ID;
	}
	return (n);
}

/*! . */
char * gmtlib_create_header_item (struct GMTAPI_CTRL *API, unsigned int mode, void *arg) {