Are C ++ floats guaranteed to have infinity?

Question

In the C ++ compatible standard, is the following guaranteed:

#include <limits>
std::numeric_limits<float>::has_infinity

+3

Thomas edding May 13, '11 at 1:13

2 answers

It should, assuming your library implementation follows C ++ standards and uses float with infinity.

+1

Mitch wheat · Accepted Answer · 2011-05-13T01:19:15+0000

I am not an expert, but it does not depend on the value is_iec559(tests, if the type complies with IEC-559 / IEEE-754)?