CABS(3POSIX)

📦 version 2017a, in debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu resolute, ubuntu stonking

💖 CABS(3POSIX) — the complex absolute value girlies 💖

okay so bestie, welcome to the POSIX Programmer's Manual section 3 page for cabs, cabsf and cabsl ✨ this is the whole vibe, let's go 🦋

🌸 PROLOG 🌸

Real talk before we even start: this manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ — so if you're on Linux, go consult the corresponding Linux manual page for the details of Linux behavior. Or, lowkey, the interface may not be implemented on Linux at all 🙈. Not every platform shows up to the party, and that's just how it is.

✨ NAME ✨

cabs, cabsf, cabsl — return a complex absolute value 💅

🎀 SYNOPSIS 🎀

#include <complex.h>

double cabs(double complex z);
float cabsf(float complex z);
long double cabsl(long double complex z);

💜 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 — no drama intended, fr fr. This volume of POSIX.1‐2017 defers to the ISO C standard.

These functions shall compute the complex absolute value of z. And because one name could never be enough for something this iconic, it's also called the norm, the modulus, or the magnitude 👑. Same energy, three nicknames.

🌈 RETURN VALUE 🌈

These functions shall return the complex absolute value. That's it. That's the whole answer. Served fresh, no notes 🫶

💀 ERRORS 💀

No errors are defined.

The following sections are informative — aka, they're here for the lore, not for the rules 📖

🍓 EXAMPLES 🍓

None. (Not me showing up with zero examples 😭 the standard said "no thoughts, head empty" on this one.)

🧚 APPLICATION USAGE 🧚

None.

⭐ RATIONALE ⭐

None.

🦋 FUTURE DIRECTIONS 🦋

None.

💖 SEE ALSO 💖

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

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 .

and that's the page, bestie 🫶 this one came to you courtesy of IEEE/The Open Group, 2017, filed under CABS(3POSIX) — go compute some magnitudes, you absolute icon 💅✨

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