PUTS(3P)

💖 PUTS(3P) — bestie edition 💖

okay so this is the POSIX Programmer's Manual page for puts, and we're gonna get into it together. 🫶

🌸 PROLOG 🌸

This manual page is part of the POSIX Programmer's Manual. Heads up though: the Linux implementation of this interface may differ (so go check the corresponding Linux manual page for the deets on Linux behavior), or honestly the interface might not even be implemented on Linux at all. 🙈

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✨ NAME ✨

puts — put a string on standard output 💅

🎀 SYNOPSIS 🎀

#include <stdio.h>

int puts(const char *s);

🦋 DESCRIPTION 🦋

So the functionality on this reference page is aligned with the ISO C standard. If there's any conflict between the requirements described here and the ISO C standard, that conflict is unintentional — no drama intended, fr. This volume of POSIX.1‐2017 defers to the ISO C standard.

The puts() function shall write the string pointed to by s, followed by a <newline>, to the standard output stream stdout. And the terminating null byte shall NOT be written — the null byte stays home, it does not get an invite. 💀

The last data modification and last file status change timestamps of the file shall be marked for update between the successful execution of puts() and the next successful completion of a call to fflush() or fclose() on the same stream, or a call to exit() or abort(). like, the timestamps are on a little delay, iykyk. ⏳

👑 RETURN VALUE 👑

Upon successful completion, puts() shall return a non-negative number. Otherwise? It shall return EOF, shall set an error indicator for the stream, and errno shall be set to indicate the error. so basically, sad girl era if it fails. 😭

🔥 ERRORS 🔥

Refer to fputc().

The following sections are informative.

💜 EXAMPLES 💜

🌈 Printing to Standard Output

The following example gets the current time, converts it to a string using localtime() and asctime(), and prints it to standard output using puts(). Then it prints the number of minutes to an event it's waiting on. very main character of it.

#include <time.h>
#include <stdio.h>
...
time_t now;
int minutes_to_event;
...
time(&now);
printf("The time is ");
puts(asctime(localtime(&now)));
printf("There are %d minutes to the event.\n",
    minutes_to_event);
...

🍓 APPLICATION USAGE 🍓

The puts() function appends a <newline>, while fputs() does not. that's literally the whole difference bestie, write it down. 📝

This volume of POSIX.1‐2017 requires that successful completion simply return a non-negative integer. There are at least three known different implementation conventions for this requirement:

• Return a constant value.
• Return the last character written.
• Return the number of bytes written. Note that this implementation convention cannot be adhered to for strings longer than {INT_MAX} bytes as the value would not be representable in the return type of the function. For backwards compatibility, implementations can return the number of bytes for strings of up to {INT_MAX} bytes, and return {INT_MAX} for all longer strings.

🧚 RATIONALE 🧚

None. (yes literally none, the rationale said nothing, iconic behavior honestly 💅)

⭐ FUTURE DIRECTIONS ⭐

None.

🌸 SEE ALSO 🌸

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

💖 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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and that's a wrap babes 🎀 — this one came from IEEE/The Open Group, dated 2017, and it's the PUTS(3P) page from the POSIX Programmer's Manual. go forth and print your little strings, bestie, you got this 💅✨🦋