Hi!
Tell me please,are there any way to check whether number is NaN?
On Friday, 28 December 2012 at 15:59:35 UTC, bearophile wrote:
Zhenya:
Tell me please,are there any way to check whether number is
NaN?
http://dlang.org/phobos/std_math.html#isNaN
Bye,
bearophile
Thank you!
Tell me please,are there any way to check whether number is
NaN?
http://dlang.org/phobos/std_math.html#isNaN
pure nothrow @trusted bool isNaN(real x);
Returns !=0 if e is a NaN.
---
Seems like a slight documentation disagreement. Shows bool
prototype but description
On 2012-42-28 16:12, Zhenya zh...@list.ru wrote:
Hi!
Tell me please,are there any way to check whether number is NaN?
us std.math.isNaN. But if you really don't want to:
float x = ...;
if (x != x) {
writeln( x is NaN );
}
I'm unsure how aggressive the optimizer is allowed to be in
