Question

How does `decltype(true ? std::declval<T1>() : std::declval<T2>())` works?

score 131 · Answer 1 · 2023-10-03T07:28:41.683000

131

Views

How does `decltype(true ? std::declval<T1>() : std::declval<T2>())` works?

Published on 03 October 2023 at 07:28

score 61 · Answer 2 · 2023-04-06T08:23:47.933000

61

Views

Understanding declval function a little further

Published on 06 April 2023 at 08:23

score 156 · Answer 3 · 2022-12-28T15:38:52.883000

156

Views

error: use of 'decltype(auto) X before deduction of 'auto' (for generated lambda)

Published on 28 December 2022 at 15:38

score 283 · Answer 4 · 2022-11-18T08:39:40.143000

283

Views

Is it legal to use std::declval in lambda in unevaluated contexts?

Published on 18 November 2022 at 08:39

score 557 · Answer 5 · 2022-08-17T09:42:18.947000

557

Views

Type trait to check if istream operator>> exists for given type

Published on 17 August 2022 at 09:42

score 250 · Answer 6 · 2022-01-26T13:43:55.323000

250

Views

How to check copy assignment operator in c++ in noexcept() function

Published on 26 January 2022 at 13:43

score 863 · Answer 7 · 2022-01-02T23:58:09.013000

863

Views

std::reference_wrapper, constructor implementation explaination

Published on 02 January 2022 at 23:58

score 764 · Answer 8 · 2021-12-14T19:34:57.440000

764

Views

What is meant by the statement that std::declval cannot be called?

Published on 14 December 2021 at 19:34

score 216 · Answer 9 · 2021-08-14T19:56:39.657000

216

Views

static assertion on noexcept for protected constructors

Published on 14 August 2021 at 19:56

score 199 · Answer 10 · 2021-06-15T19:56:28.753000

199

Views

Why isn't std::declval<int>() an lvalue when std::declval<int&>() is?

Published on 15 June 2021 at 19:56

score 259 · Answer 11 · 2021-06-03T17:40:16.747000

259

Views

Is std::declval outdated because of guaranteed copy elision?

Published on 03 June 2021 at 17:40

score 638 · Answer 12 · 2021-04-28T20:18:46.913000

638

Views

Using declval with a reference type

Published on 28 April 2021 at 20:18

score 2.7k · Answer 13 · 2020-09-25T08:54:33.400000

2.7k

Views

Why does the implementation of declval in libstdc++-v3 look so complicated?

Published on 25 September 2020 at 08:54

score 100 · Answer 14 · 2020-02-15T12:33:37.560000

100

Views

Compiler infering the template argument

Published on 15 February 2020 at 12:33

score 865 · Answer 15 · 2019-12-10T13:12:01.867000

865

Views

Does T have to be a complete type to be used in `std::declval<T>`?

Published on 10 December 2019 at 13:12

score 442 · Answer 16 · 2019-10-06T11:28:22.493000

442

Views

For what T does `std::declval<T>()` not have a matching function?

Published on 06 October 2019 at 11:28

score 335 · Answer 17 · 2019-06-07T16:07:26.227000

335

Views

std::declval vs crtp, cannot deduce method return type from incomplete type

Published on 07 June 2019 at 16:07

score 96 · Answer 18 · 2019-06-04T10:51:50.077000

96

Views

How to retrieve the type of a variadic template argument?

Published on 04 June 2019 at 10:51

score 964 · Answer 19 · 2019-05-19T21:23:16.140000

964

Views

Understanding declval optimized implementation

Published on 19 May 2019 at 21:23

score 226 · Answer 20 · 2019-04-08T17:35:17.957000

226

Views

Can I use declval to Construct an Unused Return?

Published on 08 April 2019 at 17:35

List Question

How does `decltype(true ? std::declval<T1>() : std::declval<T2>())` works?

Understanding declval function a little further

error: use of 'decltype(auto) X before deduction of 'auto' (for generated lambda)

Is it legal to use std::declval in lambda in unevaluated contexts?

Type trait to check if istream operator>> exists for given type

How to check copy assignment operator in c++ in noexcept() function

std::reference_wrapper, constructor implementation explaination

What is meant by the statement that std::declval cannot be called?

static assertion on noexcept for protected constructors

Why isn't std::declval<int>() an lvalue when std::declval<int&>() is?

Is std::declval outdated because of guaranteed copy elision?

Using declval with a reference type

Why does the implementation of declval in libstdc++-v3 look so complicated?

Compiler infering the template argument

Does T have to be a complete type to be used in `std::declval<T>`?

For what T does `std::declval<T>()` not have a matching function?

std::declval vs crtp, cannot deduce method return type from incomplete type

How to retrieve the type of a variadic template argument?

Understanding declval optimized implementation

Can I use declval to Construct an Unused Return?

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