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Merge pull request #1074 from rxrbln/dev

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fixed legacy/zstd_v* with older gcc version, by guarding builtin_*
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Yann Collet 2018-03-25 18:26:24 -07:00 committed by GitHub
commit 0ef4d097db
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2 changed files with 4 additions and 4 deletions
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4
lib/legacy/zstd_v06.c
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@ -189,7 +189,7 @@ MEM_STATIC U32 MEM_swap32(U32 in)
{
#if defined(_MSC_VER) /* Visual Studio */
return _byteswap_ulong(in);
#elif defined (__GNUC__)
#elif defined (__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 403)
return __builtin_bswap32(in);
#else
return ((in << 24) & 0xff000000 ) |
@ -203,7 +203,7 @@ MEM_STATIC U64 MEM_swap64(U64 in)
{
#if defined(_MSC_VER) /* Visual Studio */
return _byteswap_uint64(in);
#elif defined (__GNUC__)
#elif defined (__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 403)
return __builtin_bswap64(in);
#else
return ((in << 56) & 0xff00000000000000ULL) |

4
lib/legacy/zstd_v07.c
View File

@ -348,7 +348,7 @@ MEM_STATIC U32 MEM_swap32(U32 in)
{
#if defined(_MSC_VER) /* Visual Studio */
return _byteswap_ulong(in);
#elif defined (__GNUC__)
#elif defined (__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 403)
return __builtin_bswap32(in);
#else
return ((in << 24) & 0xff000000 ) |
@ -362,7 +362,7 @@ MEM_STATIC U64 MEM_swap64(U64 in)
{
#if defined(_MSC_VER) /* Visual Studio */
return _byteswap_uint64(in);
#elif defined (__GNUC__)
#elif defined (__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 403)
return __builtin_bswap64(in);
#else
return ((in << 56) & 0xff00000000000000ULL) |