SIMPLE SOLUTIONS

SIGN(3CLC) - Linux man page online | Library functions

Sign of a value.

Chapter
01/03/2018
SIGN(3clc) OpenCL Manual SIGN(3clc)

NAME

sign - Sign of a value. gentype sign(gentype x);

DESCRIPTION

Returns 1.0 if x > 0, -0.0 if x = -0.0, +0.0 if x = +0.0, or -1.0 if x < 0. Returns 0.0 if x is a NaN.

NOTES

The generic type name gentype is used to indicate that the function can take float, float2, float3, float4, float8, float16, double, double2, double3, double4, double8, or double16 as the type for the arguments. The generic type name gentypef is used to indicate that the function can take float, float2, float3, float4, float8, or float16 as the type for the arguments. The generic type name gentyped is used to indicate that the function can take double, double2, double3, double4, double8, or double16 as the type for the arguments. The built-in common functions are implemented using the round to nearest even rounding mode. If extended with cl_khr_fp16(3clc), generic type name gentype may indicate half and half{2|3|4|8|16} as arguments and return values.

SPECIFICATION

OpenCL Specification[1]

SEE ALSO

commonFunctions(3clc)

AUTHORS

The Khronos Group
Copyright © 2007-2011 The Khronos Group Inc. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and/or associated documentation files (the "Materials"), to deal in the Materials without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Materials, and to permit persons to whom the Materials are furnished to do so, subject to the condition that this copyright notice and permission notice shall be included in all copies or substantial portions of the Materials.

NOTES

1. OpenCL Specification page 260, section 6.12.4 - Common Functions
The Khronos Group 01/03/2018 SIGN(3clc)
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sign(3clc) referred by commonFunctions(3clc)
refer to cl_khr_fp16(3clc) | commonFunctions(3clc)
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