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man:puts

PUTS(3) Linux Programmer's Manual PUTS(3)

NAME

     fputc, fputs, putc, putchar, puts - output of characters and strings

SYNOPSIS

     #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);

DESCRIPTION

     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).

RETURN VALUE

     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.

ATTRIBUTES

     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()         |               |         |
     +--------------------------+---------------+---------+

CONFORMING TO

     POSIX.1-2001, POSIX.1-2008, C89, C99.

BUGS

     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  asso-
     ciated  with  the same output stream; the results will be undefined and
     very probably not what you want.

SEE ALSO

     write(2),  ferror(3),   fgets(3),   fopen(3),   fputwc(3),   fputws(3),
     fseek(3), fwrite(3), putwchar(3), scanf(3), unlocked_stdio(3)

COLOPHON

     This  page  is  part of release 4.16 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/.

GNU 2018-04-30 PUTS(3)

/data/webs/external/dokuwiki/data/pages/man/puts.txt · Last modified: 2019/05/17 09:47 by 127.0.0.1

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