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Using constexpr for both runtime and compile-time evaluations - passing constexpr value as a function parameter

score 100 · Answer 1 · 2024-03-08T08:46:45.440000

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Using constexpr for both runtime and compile-time evaluations - passing constexpr value as a function parameter

100 views Asked by NormakLOE32 At 08 March 2024 at 08:46

score 881 · Answer 2 · 2024-02-29T16:14:21.837000

Why is it possible to use the return of a lambda, passed as argument of a constexpr function argument, in a constant expression within the function?

score 94 · Answer 3 · 2024-01-14T09:07:58.200000

cout is able to run at compile-time

94 views Asked by ntos At 14 January 2024 at 09:07

score 186 · Answer 4 · 2023-12-06T19:36:03.767000

Where in the C++20 standard (N4860) does it say that an inline function must be defined before its use in a translation unit?

186 views Asked by John Kalane At 06 December 2023 at 19:36

score 88 · Answer 5 · 2023-10-10T01:54:41.820000

Can any reentrant function in C++ be refactored into a constexpr function?

88 views Asked by yqZhang4480 At 10 October 2023 at 01:54

score 143 · Answer 6 · 2023-07-26T22:01:55.713000

What are the conditions that `constexpr` will start a new constant expression context?

143 views Asked by Waker At 26 July 2023 at 22:01

score 348 · Answer 7 · 2023-06-08T13:51:01.327000

virtual and constexpr before up to C++17

348 views Asked by Oersted At 08 June 2023 at 13:51

score 126 · Answer 8 · 2023-05-28T00:43:24.337000

Different compilation results with template and non-template class having constexpr constructor

126 views Asked by Satyam Sharma At 28 May 2023 at 00:43

score 267 · Answer 9 · 2023-05-04T06:48:18.117000

Can `constexpr` functions contain side-effects?

267 views Asked by user51462 At 04 May 2023 at 06:48

score 144 · Answer 10 · 2023-02-27T16:01:25.653000

Why should constexpr functions contain exactly one return statement?

144 views Asked by jsfpdn At 27 February 2023 at 16:01

score 63 · Answer 11 · 2023-01-26T08:50:27.327000

how to make a field of a constexpr object constexpr too?

63 views Asked by shar yashuv Giat At 26 January 2023 at 08:50

score 1150 · Answer 12 · 2023-01-23T15:37:02.380000

Given C++23 relaxations on constexpr, can't constexpr be the default?

1.1k views Asked by Brotcrunsher At 23 January 2023 at 15:37

score 221 · Answer 13 · 2022-12-29T15:10:25.277000

error while trying to compile .data() from std::array as a constexpr function in c++20

221 views Asked by jabluko At 29 December 2022 at 15:10

score 127 · Answer 14 · 2022-11-27T16:18:00.670000

Static assertion if one std::array is a subset of the other

127 views Asked by AK87 At 27 November 2022 at 16:18

score 166 · Answer 15 · 2022-11-18T16:46:09.170000

What is the proper definition for a constexpr function that take a character array?

166 views Asked by Andi Abrudan At 18 November 2022 at 16:46

score 111 · Answer 16 · 2022-10-15T09:26:09.463000

how to check that const array members grow monotonically at compile time

111 views Asked by lomo At 15 October 2022 at 09:26

score 255 · Answer 17 · 2022-09-22T20:48:13.203000

Why does gcc 12.2 not optimise divisions into shifts in this constexpr function called from main()

255 views Asked by Finn Eggers At 22 September 2022 at 20:48

score 45 · Answer 18 · 2022-09-15T07:50:52.027000

Getting the value of a constexpr std::variant via constexpr function

45 views Asked by std_unordered_map At 15 September 2022 at 07:50

score 592 · Answer 19 · 2022-08-06T20:43:24.233000

Is it possible with C++20 to have a constexpr function return a tuple of types that have static constexpr array's with a value passed though a macro?

score 390 · Answer 20 · 2022-06-21T12:51:41.860000

A constexpr function that calculates how deep a std::vector is nested

390 views Asked by palapapa At 21 June 2022 at 12:51

TechQA.

List Question

Using constexpr for both runtime and compile-time evaluations - passing constexpr value as a function parameter

Why is it possible to use the return of a lambda, passed as argument of a constexpr function argument, in a constant expression within the function?

cout is able to run at compile-time

Where in the C++20 standard (N4860) does it say that an inline function must be defined before its use in a translation unit?

Can any reentrant function in C++ be refactored into a constexpr function?

What are the conditions that `constexpr` will start a new constant expression context?

virtual and constexpr before up to C++17

Different compilation results with template and non-template class having constexpr constructor

Can `constexpr` functions contain side-effects?

Why should constexpr functions contain exactly one return statement?

how to make a field of a constexpr object constexpr too?

Given C++23 relaxations on constexpr, can't constexpr be the default?

error while trying to compile .data() from std::array as a constexpr function in c++20

Static assertion if one std::array is a subset of the other

What is the proper definition for a constexpr function that take a character array?

how to check that const array members grow monotonically at compile time

Why does gcc 12.2 not optimise divisions into shifts in this constexpr function called from main()

Getting the value of a constexpr std::variant via constexpr function

Is it possible with C++20 to have a constexpr function return a tuple of types that have static constexpr array's with a value passed though a macro?

A constexpr function that calculates how deep a std::vector is nested

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