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Questions - c++23

How to use <stacktrace> in GCC trunk?

From https://github.com/gcc-mirror/gcc/commit/3acb929cc0beb79e6f4005eb22ee88b45e1cbc1d commit, C++ standard header <stacktrace> exists things such as std::stacktrace_entry but is not declared si...
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Desmond Gold

c++

libstdc++

c++23

compiler-explorer

Votes: 0

Answers: 1

Latest Answer

Part of building GCC from source is to run the configure shell script and pass it a bunch of arguments to tell it how to behave. That commit message is telling you that in order to enable this featur...
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David Grayson

Why is basic_string_view not limited to character types?

Browsing twitter I found this example of C++23 code. This is my adaptation of it, to make more obvious what I am interested about(I do not care about dangling problems mentioned in replies). #include ...
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NoSenseEtAl

c++

c++-concepts

c++23

Votes: 0

Answers: 1

Latest Answer

I suspect that this is a char-like type: struct Char { char c; Char() : c{} {} Char(char c) : c{c} {} }; Why shouldn't it work? Indeed it does std::basic_string<Char> str{'a', 'b'};...
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Enlico

`error: exception specification of &#39;operator()&lt;Iterator&gt;&#39; uses itself` when dealing with string_view

Consider following code: run on gcc.godbolt.org #include <string_view> struct Iter { Iter() {} Iter(std::string_view) {} Iter begin() const { return *this; } }; It...
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HolyBlackCat

c++

c++23

Votes: 0

Answers: 0

Could std::some-namespace::transform one day support any functor?

std::transform from the <algorithm> header applies to ranges, and it is what "enables" us to use ranges as the functors they are (in the sense of category theory(¹)). std::transform is...
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Enlico

c++

functional-programming

monads

functor

c++23

Votes: 0

Answers: 2

Latest Answer

And this makes me think that there could be some generic interface, name it mbind, that one can opt in with any type. ... Is there any chance, or are there any plans that the language will one day su...
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user1350534

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