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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libm/] [common/] [s_nan.c] - Rev 286
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/* * nan () returns a nan. * Added by Cygnus Support. */ /* FUNCTION <<nan>>, <<nanf>>---representation of ``Not a Number'' INDEX nan INDEX nanf ANSI_SYNOPSIS #include <math.h> double nan(const char *); float nanf(const char *); TRAD_SYNOPSIS #include <math.h> double nan(); float nanf(); DESCRIPTION <<nan>> and <<nanf>> return an IEEE NaN (Not a Number) in double- and single-precision arithmetic respectively. The argument is currently disregarded. QUICKREF nan - pure */ #include "fdlibm.h" #ifndef _DOUBLE_IS_32BITS double nan(const char *unused) { double x; INSERT_WORDS(x,0x7ff80000,0); return x; } #endif /* _DOUBLE_IS_32BITS */
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