NAME

       length - Vector length.

       float length(floatn p);

       double length(doublen p);

       half length (gentype p)      // if half extension
       enabled

DESCRIPTION

       Returns the length of vector p, i.e., the square root of (p.x2 + p.y2 + ...)

NOTES

       Built-in geometric functions operate component-wise. The description is per-component.  floatn is float,
       float2, float3, or float4 and doublen is double, double2, double3, or double4. The built-in geometric
       functions are implemented using the round to nearest even rounding mode.

       The geometric functions can be implemented using contractions such as mad(3clc) or fma(3clc).

       If extended with cl_khr_fp16(3clc), generic type name gentype may indicate half and half{2|3|4} as
       arguments.

SPECIFICATION

       OpenCL Specification[1]

SEE ALSO

       geometricFunctions(3clc)

AUTHORS

       The Khronos Group

COPYRIGHT

       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 262, section 6.12.5 - Geometric Functions

The Khronos Group                                  01/14/2021                                       LENGTH(3clc)