vstore_halfn

Convert float vector to half vector and write to a pointer to memory.

void vstore_halfn ( floatn data,
  size_t offset,
  __global half *p)
void vstore_halfn_rte ( floatn data,
  size_t offset,
  __global half *p)
void vstore_halfn_rtz ( floatn data,
  size_t offset,
  __global half *p)
void vstore_halfn_rtp ( floatn data,
  size_t offset,
  __global half *p)
void vstore_halfn_rtn ( floatn data,
  size_t offset,
  __global half *p)

void vstore_halfn ( floatn data,
  size_t offset,
  __local half *p)
void vstore_halfn_rte ( floatn data,
  size_t offset,
  __local half *p)
void vstore_halfn_rtz ( floatn data,
  size_t offset,
  __local half *p)
void vstore_halfn_rtp ( floatn data,
  size_t offset,
  __local half *p)
void vstore_halfn_rtn ( floatn data,
  size_t offset,
  __local half *p)

void vstore_halfn ( floatn data,
  size_t offset,
  __private half *p)
void vstore_halfn_rte ( floatn data,
  size_t offset,
  __private half *p)
void vstore_halfn_rtz ( floatn data,
  size_t offset,
  __private half *p)
void vstore_halfn_rtp ( floatn data,
  size_t offset,
  __private half *p)
void vstore_halfn_rtn ( floatn data,
  size_t offset,
  __private half *p)

If the double extension is enabled, you may use doublen instead of floatn.

Description

The single-precision floating-point value given by data is first converted to a half vector value using the appropriate rounding mode. The halfn value is then written to address computed as (p + (offset * n)). The write address computed as (p + (offset * n)) must be 16-bit aligned.

vstore_halfn uses the current rounding mode. The default current rounding mode is round to nearest even.

Notes

If extended with cl_khr_fp64, the function is extended to allow a double precision scalar or vector value to be written to memory as half values. In this case, the functions use double instead of float.

Specification

OpenCL Specification

Also see

Vector Data Load and Store Functions

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