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Practical advantages of std::copy, std::equal, std::fill over memcpy, memset, memcmp

score 390 · Answer 1 · 2023-11-17T10:10:09.497000

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Practical advantages of std::copy, std::equal, std::fill over memcpy, memset, memcmp

390 views Asked by kingsjester At 17 November 2023 at 10:10

score 162 · Answer 2 · 2023-10-25T18:08:39.277000

using memcmp for image matching?

162 views Asked by Eric At 25 October 2023 at 18:08

score 297 · Answer 3 · 2023-10-22T20:59:29.207000

Understanding the return from memcmp

297 views Asked by Fernando Loula At 22 October 2023 at 20:59

score 342 · Answer 4 · 2023-09-01T04:44:14.643000

What prevents the compiler from optimizing a hand written memcmp()?

342 views Asked by Ammar Faizi At 01 September 2023 at 04:44

score 27 · Answer 5 · 2023-04-12T09:31:43.820000

Same endian machines but different outputs

27 views Asked by user3899508 At 12 April 2023 at 09:31

score 339 · Answer 6 · 2023-01-14T20:46:59.797000

C++17 std::byte produces less optimized code with the standard algorithms in GCC

339 views Asked by AudioBubble At 14 January 2023 at 20:46

score 59 · Answer 7 · 2022-11-13T17:37:37.177000

Merit of signed comparison return of memcmp

59 views Asked by foreverska At 13 November 2022 at 17:37

score 136 · Answer 8 · 2022-08-19T11:04:04.397000

How the memcmp on structure with integer variable in c lang compares. Result is not as expected

136 views Asked by Geetha Anjali At 19 August 2022 at 11:04

score 347 · Answer 9 · 2022-07-08T03:38:07.730000

Are there other C standard library functions like memcmp that have timing side-channel risk?

347 views Asked by zhxf7481 At 08 July 2022 at 03:38

score 134 · Answer 10 · 2022-01-13T16:19:32.290000

memcmp difference between gcc 10.3 and gcc 11.1 for char16_t

134 views Asked by Gert Kommer At 13 January 2022 at 16:19

score 142 · Answer 11 · 2021-06-28T20:27:53.223000

Why memcmp return int

142 views Asked by yfr24493AzzrggAcom At 28 June 2021 at 20:27

score 233 · Answer 12 · 2021-04-18T23:05:02.057000

Compare two doubles to see if they are the same NaN

233 views Asked by BeeOnRope At 18 April 2021 at 23:05

score 1788 · Answer 13 · 2021-03-01T11:58:26.727000

What exactly does memcmp return?

1.7k views Asked by 0255 Ajinkya Giri At 01 March 2021 at 11:58

score 1828 · Answer 14 · 2021-02-27T16:08:42.697000

Comparing integers with memcmp()

1.8k views Asked by dlb04 At 27 February 2021 at 16:08

score 748 · Answer 15 · 2020-12-09T09:25:39.787000

Identify exactly where memcmp fails

748 views Asked by Nadir At 09 December 2020 at 09:25

score 21 · Answer 16 · 2020-10-29T02:27:41.173000

static_assert failed: size of struct is not the same as sum of sizes of all properties

21 views Asked by DarkChocoBar At 29 October 2020 at 02:27

score 104 · Answer 17 · 2020-08-13T09:55:18.730000

Test of 8 subsequent bytes isn't translated into a single compare instruction

104 views Asked by Daniel Langr At 13 August 2020 at 09:55

score 273 · Answer 18 · 2020-02-28T19:33:28.520000

How to prevent Atmel Studio gcc 6.3.1 from optimizing 4-byte memcmp() to a 4-byte direct comparison?

273 views Asked by Andrew Cottrell At 28 February 2020 at 19:33

score 97 · Answer 19 · 2020-02-19T12:41:07.760000

C - occasional CPU stall during memcmp on Cortex-R5

97 views Asked by Floha At 19 February 2020 at 12:41

score 4356 · Answer 20 · 2020-02-05T16:22:20.187000

How to compare generic structs in C++?

4.3k views Asked by Fredrik Enetorp At 05 February 2020 at 16:22

TechQA.

List Question

Practical advantages of std::copy, std::equal, std::fill over memcpy, memset, memcmp

using memcmp for image matching?

Understanding the return from memcmp

What prevents the compiler from optimizing a hand written memcmp()?

Same endian machines but different outputs

C++17 std::byte produces less optimized code with the standard algorithms in GCC

Merit of signed comparison return of memcmp

How the memcmp on structure with integer variable in c lang compares. Result is not as expected

Are there other C standard library functions like memcmp that have timing side-channel risk?

memcmp difference between gcc 10.3 and gcc 11.1 for char16_t

Why memcmp return int

Compare two doubles to see if they are the same NaN

What exactly does memcmp return?

Comparing integers with memcmp()

Identify exactly where memcmp fails

static_assert failed: size of struct is not the same as sum of sizes of all properties

Test of 8 subsequent bytes isn't translated into a single compare instruction

How to prevent Atmel Studio gcc 6.3.1 from optimizing 4-byte memcmp() to a 4-byte direct comparison?

C - occasional CPU stall during memcmp on Cortex-R5

How to compare generic structs in C++?

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