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Fix ustring type relying on non-standard C++ behavior

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This commit is contained in:
sfan5 2025-04-08 17:56:55 +02:00
parent 9d7400a438
commit 637755d6f9
1 changed files with 36 additions and 1 deletions
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37
src/types.h
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@ -1,5 +1,40 @@
#pragma once
#include <string>
typedef std::basic_string<unsigned char> ustring;
// Define custom char traits since std::char_traits<unsigend char> is not part of C++ standard
struct uchar_traits : std::char_traits<char>
{
using super = std::char_traits<char>;
using char_type = unsigned char;
static void assign(char_type& c1, const char_type& c2) noexcept {
c1 = c2;
}
static char_type* assign(char_type* ptr, std::size_t count, char_type c2) {
return reinterpret_cast<char_type*>(
super::assign(reinterpret_cast<char*>(ptr), count, static_cast<char>(c2)));
}
static char_type* move(char_type* dest, const char_type* src, std::size_t count) {
return reinterpret_cast<char_type*>(
super::move(reinterpret_cast<char*>(dest), reinterpret_cast<const char*>(src), count));
}
static char_type* copy(char_type* dest, const char_type* src, std::size_t count) {
return reinterpret_cast<char_type*>(
super::copy(reinterpret_cast<char*>(dest), reinterpret_cast<const char*>(src), count));
}
static int compare(const char_type* s1, const char_type* s2, std::size_t count) {
return super::compare(reinterpret_cast<const char*>(s1), reinterpret_cast<const char*>(s2), count);
}
static char_type to_char_type(int_type c) noexcept {
return static_cast<char_type>(c);
}
};
typedef std::basic_string<unsigned char, uchar_traits> ustring;
typedef unsigned int uint;
typedef unsigned char u8;