NAME

puts(), fputs() − put a string on a stream

SYNOPSIS

#include <stdio.h>

int puts(const char *s);

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

DESCRIPTION

puts() writes the null-terminated string pointed to by s, followed by a new-line character, to the standard output stream stdout. 

fputs() writes the null-terminated string pointed to by s to the named output stream, but does not append a new-line character. 

Neither function writes the terminating null character. 

RETURN VALUE

Upon successful completion, puts() and fputs() return a non-negative number.  Otherwise they return EOF, set the error indicator for the stream, and set errno to indicate the error. 

ERRORS

puts() and fputs() fail if, either the stream is unbuffered or stream’s buffer needed to be flushed causing an underlying write() call to be invoked, and:

[EAGAIN] The flag is set for the file descriptor underlying stream and the process would be delayed in the write operation. 

[EBADF] The file descriptor underlying stream is not a valid file descriptor open for writing. 

[EFBIG] An attempt was made to write to a file that exceeds the process’s file size limit or the maximum file size (see ulimit(2)).

[EINTR] A signal was caught during the write() system call. 

[EIO] The process is in a background process group and is attempting to write to its controlling terminal, TOSTOP is set, the process is neither ignoring nor blocking the SIGTTOU signal, and the process group of the process is orphaned. 

[ENOSPC] There was no free space remaining on the device containing the file. 

[EPIPE] An attempt is made to write to a pipe or FIFO that is not open for reading by any process.  A SIGPIPE signal is also sent to the process. 

Additional errno values may be set by the underlying write() function (see write(2)). 

SEE ALSO

ferror(3S), fopen(3S), fread(3S), printf(3S), putc(3S). 

NOTES

puts() appends a new-line character; fputs() does not. 

STANDARDS CONFORMANCE

puts(): AES, SVID2, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1, ANSI C

fputs(): AES, SVID2, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1, ANSI C

Hewlett-Packard Company  —  HP-UX Release 9.10: April 1995