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Check for __GNUC__ definition

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Wrap code checking against __GNUC__ to ensure it is defined. This can cause errors with compilers which do not define this preprocessor value.
This commit is contained in:
Albert Hung 2023-04-11 13:47:13 +08:00 committed by Milo Yip
parent 0e88d5e404
commit 2a1f586ba6
2 changed files with 2 additions and 2 deletions
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2
include/rapidjson/internal/biginteger.h
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@ -259,7 +259,7 @@ private:
if (low < k) if (low < k)
(*outHigh)++; (*outHigh)++;
return low; return low;
#elif (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && defined(__x86_64__) #elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && defined(__x86_64__)
__extension__ typedef unsigned __int128 uint128; __extension__ typedef unsigned __int128 uint128;
uint128 p = static_cast<uint128>(a) * static_cast<uint128>(b); uint128 p = static_cast<uint128>(a) * static_cast<uint128>(b);
p += k; p += k;

2
include/rapidjson/internal/diyfp.h
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@ -79,7 +79,7 @@ struct DiyFp {
if (l & (uint64_t(1) << 63)) // rounding if (l & (uint64_t(1) << 63)) // rounding
h++; h++;
return DiyFp(h, e + rhs.e + 64); return DiyFp(h, e + rhs.e + 64);
#elif (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && defined(__x86_64__) #elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && defined(__x86_64__)
__extension__ typedef unsigned __int128 uint128; __extension__ typedef unsigned __int128 uint128;
uint128 p = static_cast<uint128>(f) * static_cast<uint128>(rhs.f); uint128 p = static_cast<uint128>(f) * static_cast<uint128>(rhs.f);
uint64_t h = static_cast<uint64_t>(p >> 64); uint64_t h = static_cast<uint64_t>(p >> 64);