nearbyintf

Applicability

Function Usage

Obtains the integer closest to the input floating-point number. If the input floating-point number is exactly halfway between two integers, the even integer is returned.

Prototype

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inline float nearbyintf(float x)

Parameters

Returns

Integer closest to the floating-point number.

• If x is inf, the return value is inf.
• If x is -inf, the return value is -inf.
• If x is nan, the return value is nan.

Restrictions

For SIMT programming, this API is not supported.

Header File to Be Included

To use this API, the simt_api/math_functions.h header file must be included.

1

#include "simt_api/math_functions.h"

Examples

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__simt_vf__ __launch_bounds__(1024) inline void KernelNearByInt(__gm__ float* dst, __gm__ float* x)
{
    int idx = threadIdx.x + blockIdx.x * blockDim.x;
    dst[idx] = nearbyintf(x[idx]);
}