Merge pull request #1733 from nmagerko/size-hint

Add --size-hint=# option

tests/fuzz/zstd_helpers.c

@@ -90,6 +90,9 @@ void FUZZ_setRandomParameters(ZSTD_CCtx *cctx, size_t srcSize, uint32_t *state)
     setRand(cctx, ZSTD_c_forceMaxWindow, 0, 1, state);
     setRand(cctx, ZSTD_c_literalCompressionMode, 0, 2, state);
     setRand(cctx, ZSTD_c_forceAttachDict, 0, 2, state);
+    if (FUZZ_rand32(state, 0, 1) == 0) {
+      setRand(cctx, ZSTD_c_srcSizeHint, ZSTD_SRCSIZEHINT_MIN, 2 * srcSize, state);
+    }
 }
 
 FUZZ_dict_t FUZZ_train(void const* src, size_t srcSize, uint32_t *state)