updated ZSTD_DCtx_reset()

signature and behavior is now the same as ZSTD_CCtx_reset()

lib/zstd.h

@@ -729,10 +729,10 @@ ZSTDLIB_API size_t ZSTD_CCtx_refPrefix(ZSTD_CCtx* cctx,
 
 
 typedef enum {
-    ZSTD_CCtx_reset_session_only = 1,
-    ZSTD_CCtx_reset_parameters = 2,
-    ZSTD_CCtx_reset_session_and_parameters = 3
-} ZSTD_CCtx_reset_directive;
+    ZSTD_reset_session_only = 1,
+    ZSTD_reset_parameters = 2,
+    ZSTD_reset_session_and_parameters = 3
+} ZSTD_reset_directive;
 
 /*! ZSTD_CCtx_reset() :
  *  There are 2 different things that can be reset, independently or jointly :
@@ -748,7 +748,7 @@ typedef enum {
  *                  otherwise the reset fails, and function returns an error value (which can be tested using ZSTD_isError())
  *  - Both : similar to resetting the session, followed by resetting parameters.
  */
-ZSTDLIB_API size_t ZSTD_CCtx_reset(ZSTD_CCtx* cctx, ZSTD_CCtx_reset_directive zcrd);
+ZSTDLIB_API size_t ZSTD_CCtx_reset(ZSTD_CCtx* cctx, ZSTD_reset_directive reset);
 
 
 
@@ -873,12 +873,11 @@ ZSTDLIB_API size_t ZSTD_DCtx_refPrefix(ZSTD_DCtx* dctx,
 
 /*! ZSTD_DCtx_reset() :
  *  Return a DCtx to clean state.
- *  If a decompression was ongoing, any internal data not yet flushed is cancelled.
- *  All parameters are back to default values, including sticky ones.
- *  Dictionary (if any) is dropped.
- *  Parameters can be modified again after a reset.
+ *  Session and parameters can be reset jointly or separately
+ *  Parameters can only be reset when no active frame is being decompressed.
+ * @return : 0, or an error code, which can be tested with ZSTD_isError()
  */
-ZSTDLIB_API void ZSTD_DCtx_reset(ZSTD_DCtx* dctx);     /* <==== There is a discrepancy with ZSTD_CCtx_reset(): here it necessarily resets everything (context and parameters) */
+ZSTDLIB_API size_t ZSTD_DCtx_reset(ZSTD_DCtx* dctx, ZSTD_reset_directive reset);
 
 
 /*! ZSTD_decompress_generic() :