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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [newlib/] [libm/] [common/] [s_infinity.c] - Rev 859
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/* * 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 */
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