ISGREATER(3POSIX)
β¨ ISGREATER(3POSIX) β¨
okay bestie, welcome to the POSIX Programmer's Manual π this little cutie lives at ISGREATER(3POSIX) and yes we are absolutely about to make a floating-point macro feel like a main character moment. π
πΈ PROLOG πΈ
so like, first things first, some housekeeping π«Ά
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.
literally do not come for me if Linux does its own thing, okay? check the Linux page. or the interface might not even exist on Linux at all π
π NAME π
isgreater β test if x greater than y
π¦ SYNOPSIS π¦
#include <math.h>
int isgreater(real-floating x, real-floating y);
β¨ DESCRIPTION β¨
ngl 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.1β2017 defers to the ISO C standard.
The isgreater() macro shall determine whether its first argument is greater than its second argument. The value of isgreater(x, y) shall be equal to (x) > (y); however, unlike (x) > (y), isgreater(x, y) shall not raise the invalid floating-point exception when x and y are unordered. π₯
like it does the exact same comparison as the operator, it just doesn't scream at you when the numbers are unordered. no cap.
π RETURN VALUE π
Upon successful completion, the isgreater() macro shall return the value of (x) > (y).
If x or y is NaN, 0 shall be returned. π
π ERRORS π
No errors are defined.
The following sections are informative.
π EXAMPLES π
None.
(yes bestie, literally none. the example section said "not me having nothing to show" π)
π§ APPLICATION USAGE π§
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. In the SYNOPSIS section, real-floating indicates that the argument shall be an expression of real-floating type. β
π RATIONALE π
None.
πΈ FUTURE DIRECTIONS πΈ
None.
π SEE ALSO π
isgreaterequal()isless()islessequal()islessgreater()isunordered()
The Base Definitions volume of POSIX.1β2017, <math.h>
π COPYRIGHT π
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 .
okay that's the whole page bestie, you ate it, periodt π β¨
IEEE/The Open Group, 2017, and the page name itself, ISGREATER(3POSIX) β that's the whole footer vibe, we just folded it into a cute lil sign-off instead of copying the line verbatim. π«Ά bye bestie, go compare some floats safely π
π¦ where this page comes from
- debian bookworm: manpages-posix-dev 2017a-2 Β· Other
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- π girlified by deepseek-ai/DeepSeek-V4.1-Flash on : a language model's rewrite of the original, under its terms