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Ensure the endian test is constexpr

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Chris Robinson
2021-01-06 18:04:04 -08:00
parent 948ae3bc7e
commit 1f24f5caa1
1 changed files with 6 additions and 5 deletions
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common/endiantest.h
+6 -5
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@@ -4,11 +4,12 @@
#if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) #if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__)
#define IS_LITTLE_ENDIAN (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) #define IS_LITTLE_ENDIAN (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
#else #else
static const union { constexpr inline bool EndianTest() noexcept
unsigned int u; {
unsigned char b[sizeof(unsigned int)]; constexpr int test_val{1};
} EndianTest = { 1 }; return static_cast<const char&>(test_val);
#define IS_LITTLE_ENDIAN (EndianTest.b[0] == 1) }
#define IS_LITTLE_ENDIAN (EndianTest())
#endif #endif
#endif /* AL_ENDIANTEST_H */ #endif /* AL_ENDIANTEST_H */