ISLESSEQUAL(3clc) OpenCL Manual ISLESSEQUAL(3clc)

# NAME¶

islessequal - Compare of x <= y.

# ¶

int islessequal(float x, float y);

intn islessequal(floatn x, floatn y);

int islessequal(double x, double y);

longn islessequal(doublen x, doublen y);

## ¶

 int islessequal (half x, half y) // if half extension enabled shortn islessequal (halfn x, halfn y) // if half extension enabled

# DESCRIPTION¶

Returns the component-wise compare of x <= y.

# NOTES¶

If an implementation extends this specification to support IEEE-754 flags or exceptions, then all built-in relational functions shall proceed without raising the invalid floating-point exception when one or more of the operands are NaNs.

The built-in relational functions are extended with cl_khr_fp16(3clc) to include appropriate versions of functions that take half, and half{2|3|4|8|16} as arguments and return values.

The function returns a 0 if the specified relation is false and a 1 if the specified relation is true for scalar argument types. These functions shall return a 0 if the specified relation is false and a - 1 (i.e. all bits set) if the specified relation is true for vector argument types.

The relational functions isequal, isgreater, isgreaterequal, isless, islessequal, and islessgreater always return 0 if either argument is not a number (NaN). isnotequal returns 1 if one or both arguments are not a number (NaN) and the argument type is a scalar and returns -1 if one or both arguments are not a number (NaN) and the argument type is a vector.

# SPECIFICATION¶

OpenCL Specification[1]

relationalFunctions(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 264, section 6.12.6 - Relational Functions
 01/14/2021 The Khronos Group