[System] getDateTime

[StDH]

i would like to pull request to add function getDateTime inside system module.

examples of use:
 naming screenshots.
 showing time.
 save time to see when did you last played game.

Clock.hpp

static std::string getDateTime(const char* _format = "%d.%m.%Y - %H:%M:%S");

[Hiura]

You can achieve exactly the same thing with C++ and no extra dependencies. http://ideone.com/I6M5pa + std::strftime

[StDH]

well, i've already done the code, i just wanted to make this simplier.

EDIT: https://github.com/StDH/SFML/compare/LaurentGomila:master...master

[Hiura]

It's just my own opinion but this would better fit on the wiki than in SFML.

[Hapax]

The clock - in the SFML sense - is more of a stopwatch than an actual clock. I think current time of day etc. should be kept outside of SFML's Clock class.

[Laurent]

Why would SFML add an API to wrap a simple standard call?

[StDH]

Since you can get size of your screen i was thinking about function that returns formatted time.

[Laurent]

Getting size of screen requires OS-specific calls that cannot be done directly with portable code. Getting current date is directly available in the standard library. That's the difference.