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 putc(int c, FILE *stream);
       int putchar(int c);

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

DESCRIPTION
       fputc() writes the character c, cast to an unsigned char, to stream.

       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).

       fputs() writes the string s to stream, without its terminating null byte ('\0').

       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(), putchar(), puts()                                                                                           │ Thread safety │ MT-Safe │
       └──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘

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 associated 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)

GNU                                                                            2021-03-22                                                                        PUTS(3)