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GCC and Clang are behaving differently with respect to constant evaluation

score 92 · Answer 1 · 2024-02-26T15:31:47.113000

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GCC and Clang are behaving differently with respect to constant evaluation

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score 51 · Answer 12 · 2023-09-25T02:00:00.833000

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51 views Asked by Samuel Okechukwu At 25 September 2023 at 02:00

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Within a c++ consteval method, is it allowed to refer to the name of a static inline variable to enforce instantiation?

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Is it possible to make a compile-time evaluated function return a different type than the runtime evaluation of the same function?

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score 173 · Answer 20 · 2023-04-29T19:15:13.130000

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TechQA.

List Question

GCC and Clang are behaving differently with respect to constant evaluation

Manifestly constant-evaluated expressions: inconsistency between constexpr and consteval?

Constexpr time compute graph generation in cpp

How different would be these two compile-time Factorial functions in C++20

Why does a Template inside a consteval function accepts a function parameter as one of its template parameters?

Calculate 'const char *' string hash at compile-time

Unable to update std::variant in consteval context

Problem with consteval and multiplying magic numbers. c++

How can constexpr pointers exist and constevel function return a pointer at compile time?

C++ function that returns a pointer to a member function

consteval: Call to consteval function 'encrypt_string' is not a constant expression, pointer to subobject of temporary is not a constant expression

How do I issue a compiler error for invalid argument to a consteval function?

Within a c++ consteval method, is it allowed to refer to the name of a static inline variable to enforce instantiation?

Is it possible to make a compile-time evaluated function return a different type than the runtime evaluation of the same function?

What are the advantages of using constexpr instead of consteval function?

Is it possible to derive template parameters from a literal integer in a formula somehow?

Is it possible to raise compile error when string is too long without macros in C++20 or lower?

custom minimalist std::map with constexpr operator[]

Returning std::vector from an immediate function

GCC, LLVM and MSVC disagree about passing constexpr std::string's content to the runtime world. Who is right?

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