Timeline for Project Euler 001 in C++
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| S Jun 28, 2018 at 11:29 | history | suggested | Fifoernik | CC BY-SA 4.0 |
Corrected a typo introduced by Toby Speight's edit.
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| Jun 28, 2018 at 10:30 | review | Suggested edits | |||
| S Jun 28, 2018 at 11:29 | |||||
| Jun 22, 2018 at 20:01 | comment | added | 0x5453 | @papagaga At least in certain cases, GCC versions < 6 and MSVC versions as new as 19.10 don't do this optimization: godbolt.org/g/Y5auGY | |
| Jun 22, 2018 at 12:54 | comment | added | papagaga |
@0x5453: that's interesting, but do you know of a compiler which doesn't run constexpr functions at compile-time when called with arguments that are known at compile-time? You'd need that to prove me incorrect, even technically ;-)
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| Jun 22, 2018 at 12:44 | comment | added | 0x5453 |
"Now, whenever you call it with an upper_bound you know at compile-time, it will run at compile-time." Technically this is incorrect; the compiler is not required to run that function at compile time even if the function and its arguments are all constexpr. The only time it is guaranteed to run at compile time is if the result is required at compile time, e.g. if it is saved to a constexpr variable, if it is used as a template parameter, or if it is used in a static_assert.
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| Jun 22, 2018 at 10:13 | history | edited | Toby Speight | CC BY-SA 4.0 |
"fold expression" is a term, not a code identifier. Tidy up some minor typos.
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| Jun 22, 2018 at 9:38 | comment | added | eis |
if ( i % " == 0 should be if ( i % 3 == 0 , can't fix it since "edits need to be at least 6 characters"
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| Jun 22, 2018 at 5:50 | comment | added | bipll | "bad, because preprocessing leads to a lot of bugs" You should probably not do that preprocessing and only resort to the bug-free one. | |
| Jun 22, 2018 at 5:10 | vote | accept | FromTheStackAndBack | ||
| Jun 22, 2018 at 5:09 | comment | added | FromTheStackAndBack |
Before you posted this answer, I was going to generalize the code by storing all modulo values in a vector and iterating through them in an if statement. I think your solution is much more cleaner than mine.
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| Jun 22, 2018 at 5:08 | comment | added | FromTheStackAndBack |
fold expressions are definitely new to me! I will take a closer look at them soon.
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| Jun 21, 2018 at 14:38 | comment | added | papagaga | It's quite possible, I don't remember the exact title | |
| Jun 21, 2018 at 14:29 | comment | added | Rakete1111 | Are you referring to "constexpr ALL the Things"? | |
| Jun 21, 2018 at 10:46 | history | answered | papagaga | CC BY-SA 4.0 |