## 3.138. __nv_floor

Prototype:

```double @__nv_floor(double %f)

```

Description:

Calculates the largest integer value which is less than or equal to x.

Returns:

Returns the largest integer value which is less than or equal to x expressed as a floating-point number.
• __nv_floor( $±\infty$ ) returns $±\infty$ .

• __nv_floor( $±0$ ) returns $±0$ .

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