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AK: Define MakeUnsigned and MakeSigned for char.

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For some weird reason the C++ standard considers char, signed char and
unsigned char *three* different types. On the other hand int is just an
alias for signed int, meaning that int, signed int and unsigned int are
just *two* different types.

https://stackoverflow.com/a/32856568/8746648
This commit is contained in:
asynts 2020-08-27 15:36:55 +02:00 • committed by Andreas Kling
parent 8a364c503d
commit 1b3169f405
Notes: sideshowbarker 2024-07-19 03:05:37 +09:00
1 changed files with 8 additions and 20 deletions
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28
AK/StdLibExtras.h
View file

@ -329,110 +329,98 @@ inline constexpr T&& forward(typename RemoveReference<T>::Type&& param) noexcept
template<typename T>
struct MakeUnsigned {
};
template<>
struct MakeUnsigned<signed char> {
typedef unsigned char Type;
};
template<>
struct MakeUnsigned<short> {
typedef unsigned short Type;
};
template<>
struct MakeUnsigned<int> {
typedef unsigned Type;
};
template<>
struct MakeUnsigned<long> {
typedef unsigned long Type;
};
template<>
struct MakeUnsigned<long long> {
typedef unsigned long long Type;
};
template<>
struct MakeUnsigned<unsigned char> {
typedef unsigned char Type;
};
template<>
struct MakeUnsigned<unsigned short> {
typedef unsigned short Type;
};
template<>
struct MakeUnsigned<unsigned int> {
typedef unsigned Type;
};
template<>
struct MakeUnsigned<unsigned long> {
typedef unsigned long Type;
};
template<>
struct MakeUnsigned<unsigned long long> {
typedef unsigned long long Type;
};
template<>
struct MakeUnsigned<char> {
typedef unsigned char Type;
};
template<typename T>
struct MakeSigned {
};
template<>
struct MakeSigned<signed char> {
typedef signed char Type;
};
template<>
struct MakeSigned<short> {
typedef short Type;
};
template<>
struct MakeSigned<int> {
typedef int Type;
};
template<>
struct MakeSigned<long> {
typedef long Type;
};
template<>
struct MakeSigned<long long> {
typedef long long Type;
};
template<>
struct MakeSigned<unsigned char> {
typedef char Type;
};
template<>
struct MakeSigned<unsigned short> {
typedef short Type;
};
template<>
struct MakeSigned<unsigned int> {
typedef int Type;
};
template<>
struct MakeSigned<unsigned long> {
typedef long Type;
};
template<>
struct MakeSigned<unsigned long long> {
typedef long long Type;
};
template<>
struct MakeSigned<char> {
typedef signed char Type;
};
template<class T>
struct IsVoid : IsSame<void, typename RemoveCV<T>::Type> {