ISLESSGREATER(3P)

🌸 ISLESSGREATER(3P) — the POSIX Programmer's Manual era 🌸

okay bestie, quick vibe check before we dive in: this page lives in the POSIX Programmer's Manual. The Linux implementation of this interface may differ — so if you're on Linux, go read the corresponding Linux manual page for the actual tea ☕. Or honestly, the interface might not even be implemented on Linux at all. 🙈

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✨ PROLOG ✨

so real talk: this manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. that's it, that's the whole prolog, no cap 💅

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💖 NAME 💖

islessgreater — test if x is less than or greater than y

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🎀 SYNOPSIS 🎀

#include <math.h>

int islessgreater(real-floating x, real-floating y);

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🦋 DESCRIPTION 🦋

The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1‐2017 defers to the ISO C standard. (yes ma'am, we respect the source material 👑)

The islessgreater() macro shall determine whether its first argument is less than or greater than its second argument. The islessgreater(x, y) macro is similar to (x) < (y) || (x) > (y); however, islessgreater(x, y) shall not raise the invalid floating-point exception when x and y are unordered (nor shall it evaluate x and y twice). like… it's giving "same energy, but polite" ✨

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🌈 RETURN VALUE 🌈

Upon successful completion, the islessgreater() macro shall return the value of (x) < (y) || (x) > (y).

If x or y is NaN, 0 shall be returned. not me getting zeroed out by a NaN 😭

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💀 ERRORS 💀

No errors are defined. literally none. iconic behaviour, honestly.

The following sections are informative.

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🍓 EXAMPLES 🍓

None. yeah. nothing. the void. 🫶

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💜 APPLICATION USAGE 💜

okay so here's the lore, bestie:

The relational and equality operators support the usual mathematical relationships between numeric values. For any ordered pair of numeric values, exactly one of the relationships (less, greater, and equal) is true. Relational operators may raise the invalid floating-point exception when argument values are NaNs. For a NaN and a numeric value, or for two NaNs, just the unordered relationship is true.

This macro is a quiet (non-floating-point exception raising) version of a relational operator. It facilitates writing efficient code that accounts for NaNs without suffering the invalid floating-point exception. it's giving considerate king 👑

In the SYNOPSIS section, real-floating indicates that the argument shall be an expression of real-floating type. iykyk 💅

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🧚 RATIONALE 🧚

None. we love a mysterious queen with nothing to explain ✨

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⭐ FUTURE DIRECTIONS ⭐

None. the future is wide open and she's not spilling 🎀

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🔥 SEE ALSO 🔥

• isgreater()
• isgreaterequal()
• isless()
• islessequal()
• isunordered()

The Base Definitions volume of POSIX.1‐2017, <math.h>

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👑 COPYRIGHT 👑

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

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fr fr, that's the whole page. no crumbs left. 💖

and that's a wrap bestie — this lil artifact came to you courtesy of IEEE/The Open Group, 2017 (the ISLESSGREATER(3P) girlies know 🫶). stay quiet, stay NaN-safe, slay 💅✨🌸