From 8f6b62e0f0c99e421d07bf1847259744db22924b Mon Sep 17 00:00:00 2001 From: Jonathan Wakely Date: Tue, 18 Jan 2022 10:01:23 +0000 Subject: [PATCH] libstdc++: Use GCC's predefined macro for endianness [PR104080] Instead of hardcoded preprocessor conditionals with explicit target checks, just rely on the fact that __BYTE_ORDER__ is always defined by GCC. libstdc++-v3/ChangeLog: PR libstdc++/104080 * src/c++17/fast_float/LOCAL_PATCHES: Update. * src/c++17/fast_float/fast_float.h (FASTFLOAT_IS_BIG_ENDIAN): Define in terms of __BYTE_ORDER__. --- libstdc++-v3/src/c++17/fast_float/LOCAL_PATCHES | 1 + libstdc++-v3/src/c++17/fast_float/fast_float.h | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/libstdc++-v3/src/c++17/fast_float/LOCAL_PATCHES b/libstdc++-v3/src/c++17/fast_float/LOCAL_PATCHES index 447c7ed..5bb4293 100644 --- a/libstdc++-v3/src/c++17/fast_float/LOCAL_PATCHES +++ b/libstdc++-v3/src/c++17/fast_float/LOCAL_PATCHES @@ -1,3 +1,4 @@ r12-6647 r12-6648 r12-6664 +r12-6665 diff --git a/libstdc++-v3/src/c++17/fast_float/fast_float.h b/libstdc++-v3/src/c++17/fast_float/fast_float.h index ee12930..31fb88b 100644 --- a/libstdc++-v3/src/c++17/fast_float/fast_float.h +++ b/libstdc++-v3/src/c++17/fast_float/fast_float.h @@ -128,7 +128,9 @@ from_chars_result from_chars_advanced(const char *first, const char *last, #define FASTFLOAT_VISUAL_STUDIO 1 #endif -#ifdef _WIN32 +#ifdef __BYTE_ORDER__ +#define FASTFLOAT_IS_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) +#elif defined _WIN32 #define FASTFLOAT_IS_BIG_ENDIAN 0 #else #if defined(__APPLE__) || defined(__FreeBSD__) -- 2.7.4