void memstream_putc(memstream_t *stream, int c)
{
if (stream->m_ptr < stream->m_size)
stream->m_buf[stream->m_ptr++] = c;
memstream_update_ptr(stream);
}
int memstream_getc(memstream_t *stream) {
if (stream->m_ptr >= stream->m_size)
return EOF;
else
return stream->m_buf[stream->m_ptr++];
memstream_update_ptr(stream);
}
size_t memstream_write(memstream_t *stream, const void *data, size_t bytes) {
size_t avail = stream->m_size - stream->m_ptr;
if (bytes > avail)
bytes = avail;
memcpy(stream->m_buf + stream->m_ptr, data, bytes);
stream->m_ptr += bytes;
memstream_update_ptr(stream);
return bytes;
}
