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 for this function see the CUDA C Programming Guide, Appendix D.1, Table 7.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes