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

Multiply x by 2 to the power k.

Chapter

01/03/2018

**LDEXP(3clc) OpenCL Manual LDEXP(3clc)**

## NAME

ldexp - Multiply x by 2 to the power k. floatn ldexp(floatn x, intn k); floatn ldexp(floatn x, int k); float ldexp(float x, int k); doublen ldexp(doublen x, intn k); doublen ldexp(doublen x, int k); double ldexp(double x, int n); halfn ldexp(halfn x, intn k); halfn ldexp(halfn x, int k); half ldexp(half x, int k);## DESCRIPTION

Multiply x by 2 to the power k.## NOTES

The vector versions of the math functions operate component-wise. The description is per-component. The built-in math functions are not affected by the prevailing rounding mode in the calling environment, and always return the same value as they would if called with the round to nearest even rounding mode. The built-in math functions take scalar or vector arguments. The generic type name gentype is used to indicate that the function can take float, float2, float3, float4, float8, or float16 as the type for the arguments. For any specific use of these function, the actual type has to be the same for all arguments and the return type. 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

mathFunctions(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 244, section 6.12.2 - Math Functions**The Khronos Group 01/03/2018 LDEXP(3clc)**

This manual | Reference | Other manuals |
---|---|---|

ldexp(3clc) | referred by | mathFunctions(3clc) |

refer to | cl_khr_fp16(3clc) | mathFunctions(3clc) |