[Bug target/54686] std::abs (long long) resorts to std::abs (double) if llabs is absent

[olegendo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54686



--- Comment #8 from Oleg Endo <olegendo at gcc dot gnu.org> 2012-09-23 21:20:46 
UTC ---

(In reply to comment #5)

> Er, abs is the exception there. signed integers have their own overloads of 
> abs

> (in cstdlib). Seems like only unsigned integers get converted to double, which

> is rather funny :-) Not sure that was intentional in the standard...



Thanks god (or whoever) that the following:



unsigned int test_xx (unsigned int a)

{

  return std::abs (a);

}



ends up as a nop.  *phew*.

BTW, not so funny ;)