Question

Constructing class or structures in an improper way using std::launder

score 77 · Answer 1 · 2024-02-05T04:16:30.250000

77

Views

Constructing class or structures in an improper way using std::launder

Published on 05 February 2024 at 04:16

score 96 · Answer 2 · 2024-01-16T10:04:52.100000

96

Views

Is std::launder needed after std::uninitialized_default_construct

Published on 16 January 2024 at 10:04

score 64 · Answer 3 · 2023-12-27T11:26:13.637000

64

Views

Can ubsan catch launder

Published on 27 December 2023 at 11:26

score 330 · Answer 4 · 2023-10-30T14:23:44.590000

330

Views

Do laundered pointers destroy optimisation opportunities?

Published on 30 October 2023 at 14:23

score 83 · Answer 5 · 2023-08-18T08:21:28.160000

83

Views

std::launder do not work on gcc with -O3 option?

Published on 18 August 2023 at 08:21

score 54 · Answer 6 · 2023-05-31T00:11:53.833000

54

Views

Constructing a const object over itself

Published on 31 May 2023 at 00:11

score 115 · Answer 7 · 2023-04-26T22:04:37.290000

115

Views

Does implicit object creation circumvent reachability conditions of std::launder?

Published on 26 April 2023 at 22:04

score 114 · Answer 8 · 2023-02-11T04:41:49.943000

114

Views

Can I leave dynamic memory for std::complex uninitialized after allocation?

Published on 11 February 2023 at 04:41

score 101 · Answer 9 · 2023-02-01T02:10:12.687000

101

Views

When to use std::launder?

Published on 01 February 2023 at 02:10

score 91 · Answer 10 · 2022-12-17T12:10:55.997000

91

Views

Storage reuse Undefined behaviour

Published on 17 December 2022 at 12:10

score 136 · Answer 11 · 2022-10-22T18:50:53.197000

136

Views

On std::launder, GCC and clang: why such a different behavior?

Published on 22 October 2022 at 18:50

score 505 · Answer 12 · 2022-08-07T18:47:44.213000

505

Views

Does placement new start object's lifetime?

Published on 07 August 2022 at 18:47

score 202 · Answer 13 · 2022-03-26T20:02:58.370000

202

Views

reachability with std::launder

Published on 26 March 2022 at 20:02

score 390 · Answer 14 · 2022-01-21T20:43:38.670000

390

Views

std::launder vs placement-new reachability condition

Published on 21 January 2022 at 20:43

score 231 · Answer 15 · 2022-01-17T15:26:23.333000

231

Views

How to interpret the precondition of std::launder?

Published on 17 January 2022 at 15:26

score 139 · Answer 16 · 2021-12-02T07:48:35.393000

139

Views

Does the effect of std::launder last after the expression in which it is called?

Published on 02 December 2021 at 07:48

score 435 · Answer 17 · 2021-09-21T22:59:57.787000

435

Views

Can I overwrite a const object via placement-new?

Published on 21 September 2021 at 22:59

score 1k · Answer 18 · 2021-08-21T01:10:43.987000

1k

Views

Why is std::launder required here?

Published on 21 August 2021 at 01:10

score 303 · Answer 19 · 2021-03-24T15:14:37.357000

303

Views

Is std::launder required when performing arithmetic as well?

Published on 24 March 2021 at 15:14

score 191 · Answer 20 · 2021-03-11T11:51:21.993000

191

Views

using std::launder to implement memory buffer

Published on 11 March 2021 at 11:51

List Question

Constructing class or structures in an improper way using std::launder

Is std::launder needed after std::uninitialized_default_construct

Can ubsan catch launder

Do laundered pointers destroy optimisation opportunities?

std::launder do not work on gcc with -O3 option?

Constructing a const object over itself

Does implicit object creation circumvent reachability conditions of std::launder?

Can I leave dynamic memory for std::complex uninitialized after allocation?

When to use std::launder?

Storage reuse Undefined behaviour

On std::launder, GCC and clang: why such a different behavior?

Does placement new start object's lifetime?

reachability with std::launder

std::launder vs placement-new reachability condition

How to interpret the precondition of std::launder?

Does the effect of std::launder last after the expression in which it is called?

Can I overwrite a const object via placement-new?

Why is std::launder required here?

Is std::launder required when performing arithmetic as well?

using std::launder to implement memory buffer

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