/* * nan () returns a nan. * Added by Cygnus Support. */ /* FUNCTION <>, <>---representation of infinity INDEX nan INDEX nanf ANSI_SYNOPSIS #include double nan(void); float nanf(void); TRAD_SYNOPSIS #include double nan(); float nanf(); DESCRIPTION <> and <> return an IEEE NaN (Not a Number) in double and single precision arithmetic respectivly. QUICKREF nan - pure */ #include "fdlibm.h" #ifndef _DOUBLE_IS_32BITS double nan() { double x; INSERT_WORDS(x,0x7ff80000,0); return x; } #endif /* _DOUBLE_IS_32BITS */