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fputs(3)                 BSD Library Functions Manual                 fputs(3)


NAME

     fputs, puts -- output a line to a stream


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <stdio.h>

     int
     fputs(const char *restrict s, FILE *restrict stream);

     int
     puts(const char *s);


DESCRIPTION

     The function fputs() writes the string pointed to by s to the stream
     pointed to by stream.

     The function puts() writes the string s, and a terminating newline char-
     acter, to the stream stdout.


RETURN VALUES

     The functions fputs() and puts() return a nonnegative integer on success
     and EOF on error.


ERRORS

     [EBADF]            The stream argument is not a writable stream.

     The functions fputs() and puts() may also fail and set errno for any of
     the errors specified for the routines write(2).


COMPATIBILITY

     fputs() now returns a non-negative number (as opposed to 0) on successful
     completion.  As a result, many tests (e.g., "fputs() == 0", "fputs() !=
     0") do not give the desired result.  Use "fputs() != EOF" or "fputs() ==
     EOF" to determine success or failure.


SEE ALSO

     ferror(3), fputws(3), putc(3), stdio(3)


STANDARDS

     The functions fputs() and puts() conform to ISO/IEC 9899:1990
     (``ISO C90'').  While not mentioned in the standard, both fputs() and
     puts() print `(null)' if str is NULL.

BSD                              June 4, 1993                              BSD

Mac OS X 10.8 - Generated Mon Aug 27 18:28:08 CDT 2012
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