_set_controlfp
Sets the floating-point control word.
Syntax
void __cdecl _set_controlfp(
unsigned int newControl,
unsigned int mask
);
Parameters
newControl
New control-word bit values.
mask
Mask for new control-word bits to set.
Return value
None.
Remarks
The _set_controlfp
function 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) because the common language runtime only supports the default floating-point precision.
Requirements
Routine | Required header | Compatibility |
---|---|---|
_set_controlfp |
<float.h> | x86 processor only |
For more compatibility information, see Compatibility.
See also
Math and floating-point support
_clear87
, _clearfp
_status87
, _statusfp
, _statusfp2
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