libdevice User's Guide :: CUDA Toolkit Documentation

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3.200. __nv_ldexpf

Prototype:

float @__nv_ldexpf(float %x, i32 %y)

Description:

Calculate the value of $x \cdot 2^{e x p}$ of the input arguments x and exp.

Returns:

__nv_ldexpf(x) returns $\pm \infty$ if the correctly calculated value is outside the double floating point range.

Note:

For accuracy information for this function see the CUDA C Programming Guide, Appendix D.1, Table 6.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes