/prog/ - Faggotry — Tinychan BBS

Name: Anonymous 2014-05-28 5:44

Why do C++ faggots write

auto dist = [&](uint32_t col1, uint32_t col2) { return colorDist(col1, col2, cfg.luminanceWeight_); };
template <typename T> T min(T a, T b) {return a < b ? a : b;}

instead of

#define dist(col1, col2) colorDist(col1, col2, cfg.luminanceWeight_)
#define min(a,b) ((a) < (b) ? (a) : (b))

???

I find C++ especially verbose.

Name: Anonymous 2014-05-28 5:46

le compile time guarantees, have you heard of them, nasty bitfucker.

Name: Anonymous 2014-05-28 7:32

I think think template min is in a namespace while defined min is not. dist looks like lambda syntax. Do people actually use this now?

Name: Anonymous 2014-05-28 11:27

>>3
Yes, people use lambdas nowdays. We don't live in caves anymore.

Name: Anonymous 2014-05-28 11:47

>>4
C++'s lambdas are not real lambdas
you can use something like namespace in C too


#define namespaceName_dist(col1, col2) colorDist(col1, col2, cfg.luminanceWeight_)
#define namespaceName_min(a,b) ((a) < (b) ? (a) : (b))

Name: Anonymous 2014-05-28 15:19

>>5
Why aren't they real lambdas?

Name: Anonymous 2014-05-28 16:02

>>6
it's just a syntactic sugar for functors..

Name: Anonymous 2014-05-28 18:30

>>7
functors are category structure preserving maps. Anything else nonsensical you'd like to add?

Name: Anonymous 2014-05-28 18:35

>>8
functors are objects that implement the operator() method. do you even program?

Name: Anonymous 2014-05-28 18:39

>>3

Do people actually use this now?

I've seen a lot of C++11 features recently, because my old GCC doesn't want to compile them and I have to replace them with ({...}) in a macro (which for some reason always work)

Name: Anonymous 2016-07-11 5:29

_{(stopping the dubsfaggot from dubsbumping)}

Faggotry

1 Name: Anonymous 2014-05-28 5:44

2 Name: Anonymous 2014-05-28 5:46

3 Name: Anonymous 2014-05-28 7:32

4 Name: Anonymous 2014-05-28 11:27

5 Name: Anonymous 2014-05-28 11:47

6 Name: Anonymous 2014-05-28 15:19

7 Name: Anonymous 2014-05-28 16:02

8 Name: Anonymous 2014-05-28 18:30

9 Name: Anonymous 2014-05-28 18:35

10 Name: Anonymous 2014-05-28 18:39

11 Name: Anonymous 2016-07-11 5:29