CIMAG(3POSIX)

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

💖 CIMAG(3POSIX) 💖

okay so bestie, we're in the POSIX Programmer's Manual — this is CIMAG(3POSIX) and it's giving "tiny function, big feelings" energy. Let's go ✨

🎀 PROLOG 🎀

real talk before we 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, pls consult the corresponding Linux manual page for details of Linux behavior 🙏 — or honestly, the interface might not even be implemented on Linux at all. no cap. check first. 💅

✨ NAME ✨

cimag, cimagf, cimagl — the complex imaginary functions 🦋

🌸 SYNOPSIS 🌸

#include <complex.h>

double cimag(double complex z);
float cimagf(float complex z);
long double cimagl(long double complex z);

💜 DESCRIPTION 💜

okay so 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. iykyk. 👑

And now the main character moment: these functions shall compute the imaginary part of z. that's it. that's the whole vibe. 🫶

🔥 RETURN VALUE 🔥

These functions shall return the imaginary part value — as a real. (yes bestie, real-typed. the imaginary part comes back as a plain old real number. iconic.) ⭐

💀 ERRORS 💀

No errors are defined. literally none. flawless behavior. 🙈

heads up: the following sections are informative — not normative, just vibes and extra context.

🌈 EXAMPLES 🌈

None. (we're keeping it mysterious 😌)

🧚 APPLICATION USAGE 🧚

For a variable z of complex type:

z == creal(z) + cimag(z)*I

that's the whole thing bestie, that's the identity 💖

💅 RATIONALE 💅

None. (no justification needed, she simply is) 🎀

🌟 FUTURE DIRECTIONS 🌟

None. she's not changing. periodt. 👑

👀 SEE ALSO 👀

  • carg()
  • conj()
  • cproj()
  • creal()
  • 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 whole page bestie!! brought to you by IEEE/The Open Group, 2017 — CIMAG(3POSIX) — go get that imaginary part, you absolute icon 💖✨🦋

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