_chgsign, _chgsignl
Reverses the sign of a double-precision, floating-point or a long double-precision, floating-point argument.
double _chgsign( double x ); long double _chgsignl( long double x );
Parameters
- x
-
Double-precision or long double-precision, floating-point value to be changed.
| Routine | Required header | Compatibility |
|---|---|---|
| _chgsign | <float.h> | Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 |
| _chgsignl | <math.h> | Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 |
For more compatibility information, see Compatibility in the Introduction.
Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
