The C and C++ char8_t standard type represents a character in UTF-8 encoding. Available in C++ from C++20 and in C from C23.
Questions tagged [char8-t]
7 questions
10
votes
1 answer
What's the MSVC equivalent for -fno-char8_t?
In C++20 u8 string literals are based on the char8_t type. They deliberately do not convert to char const* any more:
const char* str = u8"Hall\u00f6chen \u2603"; // no longer valid in C++20
Of course, the ultimate goal when migrating to C++20 is to…
Tobi
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votes
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Copy a std::u8string into a c-style string of utf8 characters
Copying a string with no encodage into a c-string is quite easy:
auto to_c_str(std::string const& str) -> char* {
auto dest = new char[str.size() + 1];
return strcpy(dest, str.c_str());
}
But how can I do that with a std::u8string? Is there…
Guillaume Racicot
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2
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Is there a char8_t in C?
I have searched in many sites and did not get anything. I know that char8_t is a keyword in C++ since C++20. I am trying to find out in C, are they typedef-ing unsigned char to char8_t in C23 (with the release of u8 character literals). Can anyone…
Sourav Kannantha B
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Escape sequences for char8_t and unsigned char
Trying to use escape sequences to construct a char8_t string (to not rely on file/compiler encoding), I got issue with MSVC.
I wonder if it is a bug, or if it is implemention dependent.
Is there a workaround?
constexpr char8_t s1[] = …
Jarod42
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0
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1 answer
char8 & uchar8 Equivalent
I am working on a program, or I communicate with a card via UDP, the answers of the card I recover them in a Byte table and I put them in an int32 but they ask me that the gain be coded in uchar8 and Pedestal in char8, what is it the equivalent of…
QuatreHuit
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1 answer
Create std::u8string from std::string/char const* when the latter is already in utf-8
I'm in the process of upgrading my code base to C++20 and would like to make use of std::u8string/char8_t. I'm using a 3rd-party library that takes and returns UTF-8 strings in its API, however it hasn't been updated to C++20 yet and thus takes and…
Corristo
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Will we have a size_t strlen(const char8_t*) in a future C++ version
char8_t in C++20 fixes some problems of char, so I was considering using char8_t instead of char for utf8 text (e.g. text from command line). But then I noticed that strlen was not specified in the standard to be used with char8_t, actually none of…
Jeroen Lammertink
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