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ams: take care of most TODO C++20s

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This commit is contained in:
Michael Scire
2020-05-05 19:53:38 -07:00
parent 13bfeed2d5
commit 232203f4c0
30 changed files with 174 additions and 431 deletions
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30
libraries/libvapours/include/vapours/util/util_endian.hpp
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@@ -20,27 +20,17 @@
namespace ams::util {
/* TODO: C++20 std::endian */
constexpr bool IsLittleEndian() {
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
return true;
#else
return false;
#endif
return std::endian::native == std::endian::little;
}
constexpr bool IsBigEndian() {
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
return true;
#else
return false;
#endif
return std::endian::native == std::endian::big;
}
static_assert(IsLittleEndian() ^ IsBigEndian());
template<typename U> /* requires unsigned_integral<U> */
template<typename U> requires std::unsigned_integral<U>
constexpr ALWAYS_INLINE U SwapBytes(const U u) {
static_assert(BITSIZEOF(u8) == 8);
constexpr U ByteMask = 0xFFu;
@@ -85,14 +75,14 @@ namespace ams::util {
((u & (ByteMask << 0)) << 40);
}
template<typename T> /* requires integral<T> */
template<typename T> requires std::integral<T>
constexpr ALWAYS_INLINE void SwapBytes(T *ptr) {
using U = typename std::make_unsigned<T>::type;
*ptr = static_cast<T>(SwapBytes(static_cast<U>(*ptr)));
}
template<typename T> /* requires integral<T> */
template<typename T> requires std::integral<T>
constexpr ALWAYS_INLINE T ConvertToBigEndian(const T val) {
using U = typename std::make_unsigned<T>::type;
@@ -104,7 +94,7 @@ namespace ams::util {
}
}
template<typename T> /* requires integral<T> */
template<typename T> requires std::integral<T>
constexpr ALWAYS_INLINE T ConvertToLittleEndian(const T val) {
using U = typename std::make_unsigned<T>::type;
@@ -116,7 +106,7 @@ namespace ams::util {
}
}
template<typename T> /* requires integral<T> */
template<typename T> requires std::integral<T>
constexpr ALWAYS_INLINE T ConvertToBigEndian48(const T val) {
using U = typename std::make_unsigned<T>::type;
static_assert(sizeof(T) == sizeof(u64));
@@ -130,7 +120,7 @@ namespace ams::util {
}
}
template<typename T> /* requires integral<T> */
template<typename T> requires std::integral<T>
constexpr ALWAYS_INLINE T ConvertToLittleEndian48(const T val) {
using U = typename std::make_unsigned<T>::type;
static_assert(sizeof(T) == sizeof(u64));
@@ -144,12 +134,12 @@ namespace ams::util {
}
}
template<typename T> /* requires integral<T> */
template<typename T> requires std::integral<T>
constexpr ALWAYS_INLINE T LoadBigEndian(T *ptr) {
return ConvertToBigEndian(*ptr);
}
template<typename T> /* requires integral<T> */
template<typename T> requires std::integral<T>
constexpr ALWAYS_INLINE T LoadLittleEndian(T *ptr) {
return ConvertToLittleEndian(*ptr);
}