1 files changed, 4 insertions, 4 deletions
diff --git a/lz4.h b/lz4.h
index 0251157..5e72e51 100644
--- a/lz4.h
+++ b/lz4.h
@@ -38,8 +38,8 @@ extern "C" {
 // Simple Functions
 //****************************
 
-int LZ4_compress   (char* source, char* dest, int isize);
-int LZ4_uncompress (char* source, char* dest, int osize);
+int LZ4_compress   (const char* source, char* dest, int isize);
+int LZ4_uncompress (const char* source, char* dest, int osize);
 
 /*
 LZ4_compress() :
@@ -61,7 +61,7 @@ LZ4_uncompress() :
 // Advanced Functions
 //****************************
 
-int LZ4_uncompress_unknownOutputSize (char* source, char* dest, int isize, int maxOutputSize);
+int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize);
 
 /*
 LZ4_uncompress_unknownOutputSize() :
@@ -74,7 +74,7 @@ LZ4_uncompress_unknownOutputSize() :
 */
 
 
-int LZ4_compressCtx(void** ctx, char* source,  char* dest, int isize);
+int LZ4_compressCtx(void** ctx, const char* source,  char* dest, int isize);
 
 /*
 LZ4_compressCtx() :