puts(3) - c6

1PUTS(3)                    Linux Programmer's Manual                   PUTS(3)
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NAME

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

9       #include <stdio.h>
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11       int fputc(int c, FILE *stream);
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13       int fputs(const char *s, FILE *stream);
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15       int putc(int c, FILE *stream);
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17       int putchar(int c);
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19       int puts(const char *s);
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DESCRIPTION

22       fputc() writes the character c, cast to an unsigned char, to stream.
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24       fputs() writes the string s to stream, without its trailing '\0'.
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26       putc()  is equivalent to fputc() except that it may be implemented as a
27       macro which evaluates stream more than once.
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29       putchar(c); is equivalent to putc(c,stdout).
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31       puts() writes the string s and a trailing newline to stdout.
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33       Calls to the functions described here can be mixed with each other  and
34       with  calls  to  other  output functions from the stdio library for the
35       same output stream.
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37       For non-locking counterparts, see unlocked_stdio(3).
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RETURN VALUE

40       fputc(), putc() and  putchar()  return  the  character  written  as  an
41       unsigned char cast to an int or EOF on error.
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43       puts()  and  fputs() return a non-negative number on success, or EOF on
44       error.
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CONFORMING TO

47       C89, C99.
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BUGS

50       It is not advisable to mix calls to output  functions  from  the  stdio
51       library  with low-level calls to write(2) for the file descriptor asso‐
52       ciated with the same output stream; the results will be  undefined  and
53       very probably not what you want.
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COLOPHON

60       This page is part of release 3.22 of the Linux  man-pages  project.   A
61       description  of  the project, and information about reporting bugs, can
62       be found at http://www.kernel.org/doc/man-pages/.
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66GNU                               1993-04-04                           PUTS(3)