fputc, fputs, putc, putchar, puts — output of characters and strings
#include <stdio.h>
int
fputc( |
int c, |
FILE *stream); |
int
fputs( |
const char *s, |
FILE *stream); |
int
putc( |
int c, |
FILE *stream); |
int
putchar( |
int c); |
int
puts( |
const char *s); |
fputc() writes the character
c, cast to an
unsigned char, to stream.
fputs() writes the string
s to stream, without its terminating
null byte ('\0').
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).
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(), putchar(), puts() |
Thread safety | MT-Safe |
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 release 4.07 of the Linux man-pages project. A
description of the project, information about reporting bugs,
and the latest version of this page, can be found at
https://www.kernel.org/doc/man−pages/.
|
Copyright (c) 1993 by Thomas Koenig (ig25rz.uni-karlsruhe.de) %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. %%%LICENSE_END Modified Sat Jul 24 18:42:59 1993 by Rik Faith (faithcs.unc.edu) |