Talk:cpp/algorithm/transform

Is the header really needed in the Example? — Preceding unsigned comment added by 95.49.59.138 (talk • contribs)
 * no, it's a leftover from when the example used std. --Cubbi (talk) 11:46, 23 January 2016 (PST)

Excuse me, but what was wrong with my edit and why did it have to be "fix"ed like this: http://en.cppreference.com/mwiki/index.php?title=cpp/algorithm/transform&curid=789&diff=83193&oldid=83192 ? AFAIK my edit was correct… I resolved the ambiguity by casting toupper to the right pointer to function type. user:‎T. Canens? — Preceding unsigned comment added by 95.49.59.138 (talk • contribs)
 * Anything passed to the functions should be first be converted to . Otherwise, if  is signed and the value is negative, you get undefined behavior. It's not strictly necessary here, but I'd rather not show questionable practices. T. Canens (talk) 13:44, 23 January 2016 (PST)

Example conflicts with note
In the "Notes" sections it says that "to apply a function that modifies the elements of a sequence" we should prefer `std::for_each`. However, the example below does just that with

std::transform(s.begin, s.end, s.begin, ...)

Is this use good practice? If so, should we clarify why?

Mleoni (talk) 06:18, 20 April 2022 (PDT)


 * The function itself isn't modifying the element that's passed to it (which would require taking a reference parameter), which is what I believe the note refers to. --Ybab321 (talk) 06:46, 20 April 2022 (PDT)