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Sets the floating-point control word.

void __cdecl _set_controlfp(
    unsigned int newControl,
    unsigned int mask



New control-word bit values.


Mask for new control-word bits to set.

The _set_controlfp is similar to _control87, but it only sets the floating-point control word to newControl. The bits in the values indicate the floating-point control state. The floating-point control state allows the program to change the precision, rounding, and infinity modes in the floating-point math package. You can also mask or unmask floating-point exceptions using _set_controlfp. For more information, see _control87, _controlfp, __control87_2.

This function is deprecated when compiling with /clr (Common Language Runtime Compilation) or /clr:pure because the common language runtime only supports the default floating-point precision.

Routine Required header Compatibility



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; x86 processor only

For more compatibility information, see Compatibility in the Introduction.