3.199. __nv_ldexp

Prototype: 

double @__nv_ldexp(double %x, i32 %y)

Description:

Calculate the value of x ⋅ 2 e x p of the input arguments x and exp.

Returns:

  • __nv_ldexp(x) returns ± ∞ if the correctly calculated value is outside the double floating point range.

Note:

For accuracy information see the CUDA C++ Programming Guide, Mathematical Functions Appendix, Double-Precision Floating-Point Functions section.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes