ISFINITE(3clc)

✨ ISFINITE(3clc) ✨

okay bestie, welcome to the OpenCL Manual 💖 this is isfinite from the 3clc girlies, and we're gonna vibe check your floats together 🫶

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🌸 NAME 🌸

isfinite — test for finite value. that's it, that's the whole job 💅

int isfinite(float );

intn isfinite(floatn );

int isfinite(double );

longn isfinite(doublen );

int isfinite (half)      // if half
extension enabled

shortn isfinite (halfn)      // if half
extension enabled

no cap, those are the exact signatures, don't come for me 😭

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🦋 DESCRIPTION 🦋

Test for finite value. literally just... is it finite? yes or no. icon behavior ✨

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🎀 NOTES 🎀

okay so here's the tea ☕

• 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. so no dramatic meltdown when a NaN walks in, she's unbothered 💅
• 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 half girlies get to play too 🧚
• 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. 👑

⚠️ bestie do NOT mix these up — scalars get 0/1, vectors get 0/- 1 (all bits set). that's giving very different energy fr fr 😭

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🌈 SPECIFICATION 🌈

OpenCL Specification[1]

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💜 SEE ALSO 💜

• relationalFunctions(3clc) 🫶

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👑 AUTHORS 👑

The Khronos Group

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🍓 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 following condition:

the above copyright notice and this permission notice shall be included in all copies or substantial portions of the Materials.

(yes queen, keep the notice, it's the law ✨)

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💖 NOTES 💖

1. OpenCL Specification — page 264, section 6.12.6 - Relational Functions

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and that's the whole page bestie!! 🎀 source + version: The Khronos Group, dated 01/14/2021, filed under ISFINITE(3clc). go check if your floats are finite, periodt 💅✨🦋