| 0,0 → 1,49 |
|---|
| /* |
| * infinity () returns the representation of infinity. |
| * Added by Cygnus Support. |
| */ |
| |
| /* |
| FUNCTION |
| <<infinity>>, <<infinityf>>--representation of infinity |
| |
| INDEX |
| infinity |
| INDEX |
| infinityf |
| |
| ANSI_SYNOPSIS |
| #include <math.h> |
| double infinity(void); |
| float infinityf(void); |
| |
| DESCRIPTION |
| <<infinity>> and <<infinityf>> return the special number IEEE |
| infinity in double- and single-precision arithmetic |
| respectively. |
| |
| PORTABILITY |
| <<infinity>> and <<infinityf>> are neither standard C nor POSIX. C and |
| POSIX require macros HUGE_VAL and HUGE_VALF to be defined in math.h, which |
| Newlib defines to be infinities corresponding to these archaic infinity() |
| and infinityf() functions in floating-point implementations which do have |
| infinities. |
| |
| QUICKREF |
| infinity - pure |
| |
| */ |
| |
| #include "fdlibm.h" |
| |
| #ifndef _DOUBLE_IS_32BITS |
| |
| double infinity() |
| { |
| double x; |
| |
| INSERT_WORDS(x,0x7ff00000,0); |
| return x; |
| } |
| |
| #endif /* _DOUBLE_IS_32BITS */ |