| 0,0 → 1,48 |
|---|
| /* |
| * nan () returns a nan. |
| * Added by Cygnus Support. |
| */ |
| |
| /* |
| FUNCTION |
| <<nan>>, <<nanf>>---representation of ``Not a Number'' |
| |
| INDEX |
| nan |
| INDEX |
| nanf |
| |
| ANSI_SYNOPSIS |
| #include <math.h> |
| double nan(const char *); |
| float nanf(const char *); |
| |
| TRAD_SYNOPSIS |
| #include <math.h> |
| double nan(); |
| float nanf(); |
| |
| |
| DESCRIPTION |
| <<nan>> and <<nanf>> return an IEEE NaN (Not a Number) in |
| double- and single-precision arithmetic respectively. The |
| argument is currently disregarded. |
| |
| QUICKREF |
| nan - pure |
| |
| */ |
| |
| #include "fdlibm.h" |
| |
| #ifndef _DOUBLE_IS_32BITS |
| |
| double nan(const char *unused) |
| { |
| double x; |
| |
| INSERT_WORDS(x,0x7ff80000,0); |
| return x; |
| } |
| |
| #endif /* _DOUBLE_IS_32BITS */ |