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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | STANDARDS | HISTORY | BUGS | SEE ALSO | COLOPHON |
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puts(3) Library Functions Manual puts(3)
fputc, fputs, putc, putchar, puts - output of characters and
strings
Standard C library (libc, -lc)
#include <stdio.h>
int fputc(int c, FILE *stream);
int putc(int c, FILE *stream);
int putchar(int c);
int fputs(const char *restrict s, FILE *restrict stream);
int puts(const char *s);
fputc() writes the character c, cast to an unsigned char, to
stream.
putc() is equivalent to fputc() except that it may be implemented
as a macro which evaluates stream more than once.
putchar(c) is equivalent to putc(c, stdout).
fputs() writes the string s to stream, without its terminating
null byte ('\0').
puts() writes the string s and a trailing newline to stdout.
Calls to the functions described here can be mixed with each
other and with calls to other output functions from the stdio
library for the same output stream.
For nonlocking counterparts, see unlocked_stdio(3).
fputc(), putc(), and putchar() return the character written as an
unsigned char cast to an int or EOF on error.
puts() and fputs() return a nonnegative number on success, or EOF
on error.
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├─────────────────────────────────────┼───────────────┼─────────┤
│ fputc(), fputs(), putc(), │ Thread safety │ MT-Safe │
│ putchar(), puts() │ │ │
└─────────────────────────────────────┴───────────────┴─────────┘
C11, POSIX.1-2008.
POSIX.1-2001, C89, C99.
It is not advisable to mix calls to output functions from the
stdio library with low-level calls to write(2) for the file
descriptor associated with the same output stream; the results
will be undefined and very probably not what you want.
write(2), ferror(3), fgets(3), fopen(3), fputwc(3), fputws(3),
fseek(3), fwrite(3), putwchar(3), scanf(3), unlocked_stdio(3)
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report
for this manual page, see
⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
This page was obtained from the tarball man-pages-6.9.1.tar.gz
fetched from
⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2024-06-26. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
[email protected]
Linux man-pages 6.9.1 2024-06-15 puts(3)
Pages that refer to this page: curs_addch(3x), curs_termcap(3x), curs_terminfo(3x), fgetc(3), flockfile(3), fputwc(3), fputws(3), gets(3), getw(3), printf(3), putwchar(3), setbuf(3), stdio(3)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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