PUTCHAR(3P)

📦 version 2017a, in alpine 3.22, alpine 3.23, alpine 3.24, arch rolling, nixpkgs unstable, opensuse-leap 16.0

💖 hey bestie, welcome to PUTCHAR(3P) 💖

okay so this is a page from the POSIX Programmer's Manual, and we're talking about putchar today. pull up a chair, grab a boba, let's go 🧋✨

🌸 PROLOG 🌸

okay so real talk first — this manual page is part of the POSIX Programmer's Manual. the Linux implementation of this interface may differ (so like, consult the corresponding Linux manual page for the deets on Linux behavior), or honestly the interface may not even be implemented on Linux at all. 🙈 not me warning you before we even start.

✨ NAME ✨

putchar — put a byte on a stdout stream 🫶

🎀 SYNOPSIS 🎀

#include <stdio.h>

int putchar(int c);

💅 DESCRIPTION 💅

so the functionality described on this reference page is aligned with the ISO C standard. and listen — any conflict between the requirements described here and the ISO C standard is unintentional, no cap. this volume of POSIX.1‐2017 defers to the ISO C standard. periodt.

and here's the whole vibe:

The function call putchar(c) shall be equivalent to putc(c,stdout).

that's it. that's the function. it's giving "one byte, one stream, one dream" 🌈

🔥 RETURN VALUE 🔥

refer to fputc(). that's where the tea is, bestie ☕

💀 ERRORS 💀

refer to fputc(). same energy, same errors.

heads up: the following sections are informative. (iykyk — informative means they're not normative requirements, they're just context.)

🦋 EXAMPLES 🦋

None.

literally nothing. the void. 😭

🌸 APPLICATION USAGE 🌸

None.

again — nothing. iconic minimalism honestly 👑

💜 RATIONALE 💜

None.

no thoughts, head empty, still a whole POSIX function 🧚

⭐ FUTURE DIRECTIONS ⭐

None.

putchar is not going anywhere, she's booked and busy forever 💖

🍓 SEE ALSO 🍓

  • Section 2.5, Standard I/O Streams
  • putc()
  • The Base Definitions volume of POSIX.1‐2017, <stdio.h>

okay so legal era, but it's important, don't skip it bestie 🫶

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!! this one came to you from IEEE/The Open Group, dated 2017, and it's page PUTCHAR(3P) of the POSIX Programmer's Manual. bye bestie, go print some bytes 💅✨

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