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Fix bswap with MSVC compiler

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This commit is contained in:
Yohann Martel 2025-03-07 14:24:17 -05:00
parent 1c571c8576
commit 32c2f49bec
1 changed files with 16 additions and 3 deletions
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19
XenonUtils/byteswap.h
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@ -2,17 +2,30 @@
#include <cassert> #include <cassert>
#if defined(_MSC_VER) // MSVC
#include <intrin.h>
#define BSWAP16(x) _byteswap_ushort(x)
#define BSWAP32(x) _byteswap_ulong(x)
#define BSWAP64(x) _byteswap_uint64(x)
#elif defined(__GNUC__) || defined(__clang__) // GCC or Clang
#define BSWAP16(x) __builtin_bswap16(x)
#define BSWAP32(x) __builtin_bswap32(x)
#define BSWAP64(x) __builtin_bswap64(x)
#else
#error "Unsupported compiler"
#endif
template<typename T> template<typename T>
inline T ByteSwap(T value) inline T ByteSwap(T value)
{ {
if constexpr (sizeof(T) == 1) if constexpr (sizeof(T) == 1)
return value; return value;
else if constexpr (sizeof(T) == 2) else if constexpr (sizeof(T) == 2)
return static_cast<T>(__builtin_bswap16(static_cast<uint16_t>(value))); return static_cast<T>(BSWAP16(static_cast<uint16_t>(value)));
else if constexpr (sizeof(T) == 4) else if constexpr (sizeof(T) == 4)
return static_cast<T>(__builtin_bswap32(static_cast<uint32_t>(value))); return static_cast<T>(BSWAP32(static_cast<uint32_t>(value)));
else if constexpr (sizeof(T) == 8) else if constexpr (sizeof(T) == 8)
return static_cast<T>(__builtin_bswap64(static_cast<uint64_t>(value))); return static_cast<T>(BSWAP64(static_cast<uint64_t>(value)));
assert(false && "Unexpected byte size."); assert(false && "Unexpected byte size.");
return value; return value;