Relaxing constraints on constexpr functions

Relaxing constraints on constexpr functions - Open-std.org

This paper explores the removal of most of the restrictions on constexpr function definitions, in order to make them a simpler and more uniform extension of ...

Relaxing constraints on constexpr functions - Standard C++

This paper describes the subset of N3597 selected for inclusion in C++14, relaxing a number of restrictions on constexpr functions.

Trouble understanding C++14 Relaxed constexpr restrictions

The base issue isn't directly related to relaxed constexpr rules, a constexpr function is only a constant expression if the arguments are ...

Relaxing some constexpr restrictions - Open-std.org

There are two rules about constexpr programming that make code ill-formed or ill-formed (no diagnostic required) when functions or function ...

Modern C++ • Relaxed constexpr functions - Alberto Gramaglia

This removed many of the limitations in previous versions but still there were limits on the structure of a function in order for it to be ...

constexpr specifier (since C++11) - cppreference.com - C++ Reference

The constexpr specifier declares that it is possible to evaluate the value of the function or variable at compile time.

106649 – [C++23] P2448 - Relaxing some constexpr restrictions

It's effectively going the way of being just a hint (hello, inline!). This gist is relatively simple: in C++23, a constexpr function's return ...

Truly constexpr all the things? : r/cpp - Reddit

But that doesn't mean I can use a as input to a consteval function under the guise of relaxed constraints of optimizations. Upvote 13

"A Proposal to Relax Constexpr Restrictions for some Reinterpret ...

I was basically trying to implement a hash function in C++ using constant expressions (constexpr). Sometimes it is necessary to cast a scalar type (or ...

Design and evolution of constexpr in C++ - PVS-Studio

As with the old restrictions, functions should theoretically have a set of arguments that enable you to use these functions in constant ...

Understanding the Power of constexpr in Modern C++ | by Gealleh

C++14 significantly relaxed the constraints on constexpr functions: Multiple statements are now allowed. Local variables and loops are permitted ...

C++23: Even more constexpr - Sandor Dargo's Blog

Relaxing some more constexpr restrictions · Functions that are not yet constexpr · Explicitly defaulted functions follow different rules · What is ...

Understanding constexpr Specifier in C++ - GeeksforGeeks

constexpr specifies that the value of an object or a function can be evaluated at compile-time and the expression can be used in other constant ...

A Proposal to Relax Constexpr Restrictions for some Reinterpret Casts

III. Design Decisions. A. Allow conversions from void* to pointers to char , unsigned char. Existing implementations of the functions in < ...

constexpr Functions – MC++ BLOG - Modernes C++

Is it possible to define a meaningful function with such restrictions? Because constexpr functions can not have a conditional like if or a loop.

check for --expt-relaxed-constexpr - NVIDIA Developer Forums

The experimental nvcc flag --expt-relaxed-constexpr removes this restriction. When this flag is specified, host code can invoke a device constexpr function.

AnthonyCalandra/modern-cpp-features: A cheatsheet of ... - GitHub

return type deduction; decltype(auto); relaxing constraints on constexpr functions; variable templates; [[deprecated]] attribute. C++14 includes the following ...

Demystifying constexpr - Blog

A constant expression doesn't mean "compile time expression" or "constant value" or "constant function". A non-formal description of a constant ...

C++14 Language Extensions, C++ FAQ - Standard C++

... constexpr member functions are implicitly const . See also: [N3652] Richard Smith: Relaxing constraints on constexpr functions. The [ [deprecated] ...

Three Important Posts About The Features Of C++14

This useful property had some restrictions in C++11, these are relaxed in C++14 and this feature is known as Relaxed Constexpr Restrictions.