393         size_t start_buf = buf->content - buf->contentIO;  in xmlBufEmpty()  local
395 	buf->size += start_buf;  in xmlBufEmpty()
438 	    size_t start_buf = buf->content - buf->contentIO;  in xmlBufShrink()  local
439 	    if (start_buf >= buf->size) {  in xmlBufShrink()
443 		buf->size += start_buf;  in xmlBufShrink()
505         size_t start_buf = buf->content - buf->contentIO;  in xmlBufGrowInternal()  local
507 	newbuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + size);  in xmlBufGrowInternal()
513 	buf->content = newbuf + start_buf;  in xmlBufGrowInternal()
778     size_t start_buf;  in xmlBufResize()  local
837         start_buf = buf->content - buf->contentIO;  in xmlBufResize()
839         if (start_buf > newSize) {  in xmlBufResize()
844 	    buf->size += start_buf;  in xmlBufResize()
846 	    rebuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + newSize);  in xmlBufResize()
852 	    buf->content = rebuf + start_buf;  in xmlBufResize()
986         size_t start_buf = buf->content - buf->contentIO;  in xmlBufAddHead()  local
988 	if (start_buf > (unsigned int) len) {  in xmlBufAddHead()