vstorea_halfn
vstorea_halfn
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3
vstorea_half`n` Convert float vector to half vector and write to a pointer to memory.

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void `vstorea_halfn` floatn data size_t offset __global half*p void `vstorea_halfn_rte` floatn data size_t offset __global half*p void `vstorea_halfn_rtz` floatn data size_t offset __global half*p void `vstorea_halfn_rtp` floatn data size_t offset __global half*p void `vstorea_halfn_rtn` floatn data size_t offset __global half*p

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void `vstorea_halfn` floatn data size_t offset __local half*p void `vstorea_halfn_rte` floatn data size_t offset __local half*p void `vstorea_halfn_rtz` floatn data size_t offset __local half*p void `vstorea_halfn_rtp` floatn data size_t offset __local half*p void `vstorea_halfn_rtn` floatn data size_t offset __local half*p

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void `vstorea_halfn` floatn data size_t offset __private half*p void `vstorea_halfn_rte` floatn data size_t offset __private half*p void `vstorea_halfn_rtz` floatn data size_t offset __private half*p void `vstorea_halfn_rtp` floatn data size_t offset __private half*p void `vstorea_halfn_rtn` floatn data size_t offset __private half*p

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If the optional double is supported, you may use doublen instead of floatn.

## Description

The floatn (or doublen if optional double is supported) value igiven by `data` is converted to a halfn value using the appropriate rounding mode.

For n = 1, 2, 4, 8 and 16, the halfn value is written to the address computed as (`p` + (`offset` * `n`)). The address computed as (`p` + (`offset` * `n`)) must be aligned to sizeof (halfn) bytes.

For n = 3, the half3 value is written to the address computed as (`p` + (`offset` * 4)). The address computed as (`p` + (`offset` * 4)) must be aligned to sizeof (half) * 4 bytes.

`vstorea_halfn` uses the default rounding mode. The default rounding mode is round to the nearest even.

An application that wants to use half and halfn types will need to include the `#pragma OPENCL EXTENSION cl_khr_fp16 : enable` directive.

## Notes

&vectorFunctionsInc;

`vstorea_half3` writes `x`, `y`, `z` components from a 3-component vector to address (`p` + (`offset` * 4)).

## Specification

OpenCL Specification

## Also see

Vector Data Load and Store Functions

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