/* * infinity () returns the representation of infinity. * Added by Cygnus Support. */ /* FUNCTION <>, <>---representation of infinity INDEX infinity INDEX infinityf ANSI_SYNOPSIS #include double infinity(void); float infinityf(void); DESCRIPTION <> and <> return the special number IEEE infinity in double- and single-precision arithmetic respectively. PORTABILITY <> and <> 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 */