73     size_t      offset;     /* current write offset */  member
88     DBUG(("+++ ensureCap off=%d size=%d\n", stream->offset, writeSize));  in ensureCapacity()
90     size_t neededSize = stream->offset + writeSize + 1;  in ensureCapacity()
131     if (stream->eof < stream->offset) {  in write_memstream()
133             stream->eof, stream->offset-1));  in write_memstream()
135             stream->offset - stream->eof);  in write_memstream()
139     memcpy(*stream->bufp + stream->offset, buf, size);  in write_memstream()
140     stream->offset += size;  in write_memstream()
142     if (stream->offset > stream->eof) {  in write_memstream()
144         DBUG(("+++ EOF advanced to %d, appending nul\n", stream->offset));  in write_memstream()
145         assert(stream->offset < stream->allocSize);  in write_memstream()
146         stream->eof = stream->offset;  in write_memstream()
150             *(*stream->bufp + stream->offset), stream->offset));  in write_memstream()
151         stream->saved = *(*stream->bufp + stream->offset);  in write_memstream()
153     *(*stream->bufp + stream->offset) = '\0';  in write_memstream()
154     *stream->sizep = stream->offset;  in write_memstream()
164 static fpos_t seek_memstream(void* cookie, fpos_t offset, int whence)  in seek_memstream()  argument
167     off_t newPosn = (off_t) offset;  in seek_memstream()
170         newPosn += stream->offset;  in seek_memstream()
182     if (stream->offset < stream->eof) {  in seek_memstream()
188             stream->saved, stream->offset));  in seek_memstream()
189         *(*stream->bufp + stream->offset) = stream->saved;  in seek_memstream()
192     stream->offset = (size_t) newPosn;  in seek_memstream()
194     if (stream->offset < stream->eof) {  in seek_memstream()
199         stream->saved = *(*stream->bufp + stream->offset);  in seek_memstream()
200         *(*stream->bufp + stream->offset) = '\0';  in seek_memstream()
201         *stream->sizep = stream->offset;  in seek_memstream()