frexp - HLSL

Returns the mantissa and exponent of x. The return value of the function is the mantissa, and the exponent is returned by exp. If x is 0, the function returns 0 for both the mantissa and the exponent.

Syntax

ret frexp(x, out exp)

Where:

Name In/Out Template Type Component Type Size
x in scalar, vector, or matrix float any
exp in same as input x float same dimension(s) as input x
ret out same as input x float same dimension(s) as input x

Minimum Shader Version

This intrinsic function is supported in the following (or above) shader versions:

Vertex Shader Pixel Shader
vs_1_1 ps_2_0

See Also

HLSL Intrinsic Functions