/**
* @brief Copies previously decoded bytes to current position.
- * @param back how many bytes back we start
+ * @param back how many bytes back we start, must be > 0
* @param cnt number of bytes to copy, must be >= 0
*
* cnt > back is valid, this will copy the bytes we just copied,
static inline void memcpy_backptr(uint8_t *dst, int back, int cnt) {
const uint8_t *src = &dst[-back];
- if (back == 1) {
+ if (back <= 1) {
memset(dst, *src, cnt);
- } else if(back>0) {
+ } else {
#ifdef OUTBUF_PADDED
COPY2(dst, src);
COPY2(dst + 2, src + 2);