54 	 * Make 'r' refer to the used region of 'b'.  in isc__buffer_usedregion()
76 	 * Increase the 'used' region of 'b' by 'n' bytes.  in isc__buffer_add()
79 	REQUIRE(b->used + n <= b->length);  in isc__buffer_add()
87 	 * Decrease the 'used' region of 'b' by 'n' bytes.  in isc__buffer_subtract()
90 	REQUIRE(b->used >= n);  in isc__buffer_subtract()
98 	 * Make the used region empty.  in isc__buffer_clear()
132 	REQUIRE(b->current + n <= b->used);  in isc__buffer_setactive()
152 	REQUIRE(b->current + n <= b->used);  in isc__buffer_forward()
163 	 * Compact the used region by moving the remaining region so it occurs  in isc_buffer_compact()
164 	 * at the start of the buffer.  The used region is shrunk by the size  in isc_buffer_compact()
177 	b->used = length;  in isc_buffer_compact()
189 	REQUIRE(b->used - b->current >= 1);  in isc_buffer_getuint8()
200 	REQUIRE(b->used + 1 <= b->length);  in isc__buffer_putuint8()
215 	REQUIRE(b->used - b->current >= 2);  in isc_buffer_getuint16()
227 	REQUIRE(b->used + 2 <= b->length);  in isc__buffer_putuint16()
242 	REQUIRE(b->used - b->current >= 4);  in isc_buffer_getuint32()
256 	REQUIRE(b->used + 4 <= b->length);  in isc__buffer_putuint32()
266 	REQUIRE(b->used + 6 <= b->length);  in isc__buffer_putuint48()
278 	REQUIRE(b->used + length <= b->length);  in isc__buffer_putmem()
299 	b->used += l;  in isc__buffer_putstr()
317 	b->used += r->length;  in isc_buffer_copyregion()
368 /* this used to be str_totext() in rdata.c etc. */