Remove extern C blocks from lib/* internal APIs (except xxhash.h)

lib/compress/zstd_compress_internal.h

@@ -26,10 +26,6 @@
 #include "../common/bits.h" /* ZSTD_highbit32, ZSTD_NbCommonBytes */
 #include "zstd_preSplit.h" /* ZSTD_SLIPBLOCK_WORKSPACESIZE */
 
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
 /*-*************************************
 *  Constants
 ***************************************/
@@ -1426,10 +1422,6 @@ MEM_STATIC int ZSTD_comparePackedTags(size_t packedTag1, size_t packedTag2) {
     return tag1 == tag2;
 }
 
-#if defined (__cplusplus)
-}
-#endif
-
 /* ===============================================================
  * Shared internal declarations
  * These prototypes may be called from sources not in lib/compress

lib/compress/zstd_cwksp.h

@@ -19,10 +19,6 @@
 #include "../common/portability_macros.h"
 #include "../common/compiler.h" /* ZS2_isPower2 */
 
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
 /*-*************************************
 *  Constants
 ***************************************/
@@ -766,8 +762,4 @@ MEM_STATIC void ZSTD_cwksp_bump_oversized_duration(
     }
 }
 
-#if defined (__cplusplus)
-}
-#endif
-
 #endif /* ZSTD_CWKSP_H */

lib/compress/zstd_double_fast.h

@@ -14,10 +14,6 @@
 #include "../common/mem.h"      /* U32 */
 #include "zstd_compress_internal.h"     /* ZSTD_CCtx, size_t */
 
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
 #ifndef ZSTD_EXCLUDE_DFAST_BLOCK_COMPRESSOR
 
 void ZSTD_fillDoubleHashTable(ZSTD_matchState_t* ms,
@@ -43,8 +39,4 @@ size_t ZSTD_compressBlock_doubleFast_extDict(
 #define ZSTD_COMPRESSBLOCK_DOUBLEFAST_EXTDICT NULL
 #endif /* ZSTD_EXCLUDE_DFAST_BLOCK_COMPRESSOR */
 
-#if defined (__cplusplus)
-}
-#endif
-
 #endif /* ZSTD_DOUBLE_FAST_H */

lib/compress/zstd_fast.h

@@ -14,10 +14,6 @@
 #include "../common/mem.h"      /* U32 */
 #include "zstd_compress_internal.h"
 
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
 void ZSTD_fillHashTable(ZSTD_matchState_t* ms,
                         void const* end, ZSTD_dictTableLoadMethod_e dtlm,
                         ZSTD_tableFillPurpose_e tfp);
@@ -31,8 +27,4 @@ size_t ZSTD_compressBlock_fast_extDict(
         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
         void const* src, size_t srcSize);
 
-#if defined (__cplusplus)
-}
-#endif
-
 #endif /* ZSTD_FAST_H */

lib/compress/zstd_lazy.h

@@ -13,10 +13,6 @@
 
 #include "zstd_compress_internal.h"
 
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
 /**
  * Dedicated Dictionary Search Structure bucket log. In the
  * ZSTD_dedicatedDictSearch mode, the hashTable has
@@ -194,9 +190,4 @@ size_t ZSTD_compressBlock_btlazy2_extDict(
 #define ZSTD_COMPRESSBLOCK_BTLAZY2_EXTDICT NULL
 #endif
 
-
-#if defined (__cplusplus)
-}
-#endif
-
 #endif /* ZSTD_LAZY_H */

lib/compress/zstd_ldm.h

@@ -14,10 +14,6 @@
 #include "zstd_compress_internal.h"   /* ldmParams_t, U32 */
 #include "../zstd.h"   /* ZSTD_CCtx, size_t */
 
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
 /*-*************************************
 *  Long distance matching
 ***************************************/
@@ -110,8 +106,4 @@ size_t ZSTD_ldm_getMaxNbSeq(ldmParams_t params, size_t maxChunkSize);
 void ZSTD_ldm_adjustParameters(ldmParams_t* params,
                                ZSTD_compressionParameters const* cParams);
 
-#if defined (__cplusplus)
-}
-#endif
-
 #endif /* ZSTD_FAST_H */

lib/compress/zstd_opt.h

@@ -13,10 +13,6 @@
 
 #include "zstd_compress_internal.h"
 
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
 #if !defined(ZSTD_EXCLUDE_BTLAZY2_BLOCK_COMPRESSOR) \
  || !defined(ZSTD_EXCLUDE_BTOPT_BLOCK_COMPRESSOR) \
  || !defined(ZSTD_EXCLUDE_BTULTRA_BLOCK_COMPRESSOR)
@@ -73,8 +69,4 @@ size_t ZSTD_compressBlock_btultra2(
 #define ZSTD_COMPRESSBLOCK_BTULTRA2 NULL
 #endif
 
-#if defined (__cplusplus)
-}
-#endif
-
 #endif /* ZSTD_OPT_H */

lib/compress/zstd_preSplit.h

@@ -13,10 +13,6 @@
 
 #include <stddef.h>  /* size_t */
 
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
 #define ZSTD_SLIPBLOCK_WORKSPACESIZE 8208
 
 /* ZSTD_splitBlock():
@@ -34,8 +30,4 @@ size_t ZSTD_splitBlock(const void* blockStart, size_t blockSize,
                     int level,
                     void* workspace, size_t wkspSize);
 
-#if defined (__cplusplus)
-}
-#endif
-
 #endif /* ZSTD_PRESPLIT_H */

lib/compress/zstdmt_compress.h

@@ -16,11 +16,6 @@
 #define ZSTD_STATIC_LINKING_ONLY   /* ZSTD_parameters */
 #include "../zstd.h"            /* ZSTD_inBuffer, ZSTD_outBuffer, ZSTDLIB_API */
 
- #if defined (__cplusplus)
- extern "C" {
- #endif
-
-
 /* Note : This is an internal API.
  *        These APIs used to be exposed with ZSTDLIB_API,
  *        because it used to be the only way to invoke MT compression.
@@ -104,9 +99,4 @@ void ZSTDMT_updateCParams_whileCompressing(ZSTDMT_CCtx* mtctx, const ZSTD_CCtx_p
  */
 ZSTD_frameProgression ZSTDMT_getFrameProgression(ZSTDMT_CCtx* mtctx);
 
-
-#if defined (__cplusplus)
-}
-#endif
-
 #endif   /* ZSTDMT_COMPRESS_H */