/* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. Developed at SunPro, a Sun Microsystems, Inc. business. Permission to use, copy, modify, and distribute this software is freely granted, provided that this notice is preserved. */ /* * infinity () returns the representation of infinity. * Added by Cygnus Support. */ /* FUNCTION <>, <>---representation of infinity INDEX infinity INDEX infinityf 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" #ifdef _NEED_FLOAT64 __float64 infinity64(void) { __float64 x; INSERT_WORDS(x,0x7ff00000,0); return x; } _MATH_ALIAS_d(infinity) #endif /* _NEED_FLOAT64 */