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Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libm/] [common/] [s_nan.c] - Diff between revs 148 and 158

Rev 148	Rev 158
`/*`	`/*`
`* nan () returns a nan.`	`* nan () returns a nan.`
`* Added by Cygnus Support.`	`* Added by Cygnus Support.`
`*/`	`*/`

`/*`	`/*`
`FUNCTION`	`FUNCTION`
<<nan>>, <<nanf>>---representation of ``Not a Number''	<<nan>>, <<nanf>>---representation of ``Not a Number''

`INDEX`	`INDEX`
`nan`	`nan`
`INDEX`	`INDEX`
`nanf`	`nanf`

`ANSI_SYNOPSIS`	`ANSI_SYNOPSIS`
`#include <math.h>`	`#include <math.h>`
`double nan(const char *);`	`double nan(const char *);`
`float nanf(const char *);`	`float nanf(const char *);`

`TRAD_SYNOPSIS`	`TRAD_SYNOPSIS`
`#include <math.h>`	`#include <math.h>`
`double nan();`	`double nan();`
`float nanf();`	`float nanf();`


`DESCRIPTION`	`DESCRIPTION`
`<<nan>> and <<nanf>> return an IEEE NaN (Not a Number) in`	`<<nan>> and <<nanf>> return an IEEE NaN (Not a Number) in`
`double- and single-precision arithmetic respectively. The`	`double- and single-precision arithmetic respectively. The`
`argument is currently disregarded.`	`argument is currently disregarded.`

`QUICKREF`	`QUICKREF`
`nan - pure`	`nan - pure`

`*/`	`*/`

`#include "fdlibm.h"`	`#include "fdlibm.h"`

`#ifndef _DOUBLE_IS_32BITS`	`#ifndef _DOUBLE_IS_32BITS`

`double nan(const char *unused)`	`double nan(const char *unused)`
`{`	`{`
`double x;`	`double x;`

`INSERT_WORDS(x,0x7ff80000,0);`	`INSERT_WORDS(x,0x7ff80000,0);`
`return x;`	`return x;`
`}`	`}`

`#endif /* _DOUBLE_IS_32BITS */`	`#endif /* _DOUBLE_IS_32BITS */`