Affective C++ (@AffectiveCpp) / X

Affective C++

298 posts

Affective C++

@AffectiveCpp

The authoritative guide for High Quality C++! (Warning: These are all jokes.)

Joined September 2018

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Affective C++
@AffectiveCpp
Sep 23, 2018
Replying to @AffectiveCpp and @OmerFarukDinder
(Just in case someone missed the point: @AffectiveCpp is a humorous account, everything we post is spectacularly wrong.)
Affective C++
@AffectiveCpp
Jun 10, 2022
Item 80: A typical source of error is (transitively) including the same header file in many compilation units. This is an ODR violation. Instead, make a separate copy of that header file for each source file. #cplusplus #cpp #affectivecpp
Affective C++
@AffectiveCpp
May 16, 2022
Item 79: Choosing the right data structure is critical. Is memset too slow? Consider memunordered_set instead, to avoid the red-black tree in favor of hashing. See also memmap for key/value, mempriority_queue, memstack, etc. (thanks @jfbastien) #cplusplus #cpp #affectivecpp
Affective C++
@AffectiveCpp
May 13, 2022
Item 78: With multiply wrapped objects, such as unique_ptr to optional, if you want to access a member of wrapped object, use the long arrow operator. Instead of v.get()->value().member, do v--->member. @ivan_cukic explains: cukic.co/2017/07/12/the… #cplusplus #cpp #affectivecpp
cukic.co
The long arrow operator in C++ (not the usual one) | Ivan Čukić
Dr Ivan Čukić -- author of the 'Functional Programming in C++' book, KDE developer and Free/Libre Software enthusiast.
Affective C++
@AffectiveCpp
Apr 28, 2022
Item 77: The difference between char and wchar_t is that char is for narrow characters, and wchar_t is for wide characters. Store letters like i and j in a char, and letters like m and w in a wchar_t. (Thanks @chrisoldwood) #cplusplus #cpp #affectivecpp
Chris Oldwood
@chrisoldwood
Apr 27, 2022
The difference between char and wchar_t in C++ is that char is for narrow characters and wchar_t is for wide characters. So you’d store letters like i, l, and t in a char but M and W in a wchar_t…
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