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Diffstat (limited to 'newlib/libm/common/s_nan.c')
-rw-r--r-- | newlib/libm/common/s_nan.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/newlib/libm/common/s_nan.c b/newlib/libm/common/s_nan.c new file mode 100644 index 0000000..f062426 --- /dev/null +++ b/newlib/libm/common/s_nan.c @@ -0,0 +1,47 @@ +/* + * nan () returns a nan. + * Added by Cygnus Support. + */ + +/* +FUNCTION + <<nan>>, <<nanf>>---representation of infinity + +INDEX + nan +INDEX + nanf + +ANSI_SYNOPSIS + #include <math.h> + double nan(void); + float nanf(void); + +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 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 */ |