Fixed a few Valgrind warnings

2 files changed, 4 insertions, 3 deletions

diff --git a/lib/lz4.c b/lib/lz4.c
index d6fdcd9..e57d080 100644
--- a/lib/lz4.c
+++ b/lib/lz4.c
@@ -756,6 +756,7 @@ int LZ4_freeStream (LZ4_stream_t* LZ4_stream)
 }
 
 
+#define HASH_UNIT sizeof(size_t)
 int LZ4_loadDict (LZ4_stream_t* LZ4_dict, const char* dictionary, int dictSize)
 {
     LZ4_stream_t_internal* dict = (LZ4_stream_t_internal*) LZ4_dict;
@@ -765,7 +766,7 @@ int LZ4_loadDict (LZ4_stream_t* LZ4_dict, const char* dictionary, int dictSize)
 
     if (dict->initCheck) LZ4_resetStream(LZ4_dict);                         /* Uninitialized structure detected */
 
-    if (dictSize < MINMATCH)
+    if (dictSize < HASH_UNIT)
     {
         dict->dictionary = NULL;
         dict->dictSize = 0;
@@ -778,7 +779,7 @@ int LZ4_loadDict (LZ4_stream_t* LZ4_dict, const char* dictionary, int dictSize)
     dict->dictSize = (U32)(dictEnd - p);
     dict->currentOffset += dict->dictSize;
 
-    while (p <= dictEnd-MINMATCH)
+    while (p <= dictEnd-HASH_UNIT)
     {
         LZ4_putPosition(p, dict, byU32, base);
         p+=3;
diff --git a/lib/lz4hc.c b/lib/lz4hc.c
index 234e1af..4f1272c 100644
--- a/lib/lz4hc.c
+++ b/lib/lz4hc.c
@@ -656,7 +656,7 @@ int LZ4_saveDictHC (LZ4_streamHC_t* LZ4_streamHCPtr, char* safeBuffer, int dictS
     if (dictSize > 64 KB) dictSize = 64 KB;
     if (dictSize < 4) dictSize = 0;
     if (dictSize > prefixSize) dictSize = prefixSize;
-    memcpy(safeBuffer, streamPtr->end - dictSize, dictSize);
+    memmove(safeBuffer, streamPtr->end - dictSize, dictSize);
     {
         U32 endIndex = (U32)(streamPtr->end - streamPtr->base);
         streamPtr->end = (const BYTE*)safeBuffer + dictSize;