int puts (const char *s);
int fputs (const char *s, FILE *stream);
fputs- writes nul-terminated string to named output stream
The puts function 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.
Neither function writes the terminating null character.
X/Open Portability Guide, Issue 3, 1989
ANSI X3.159-1989 Programming Language -- C ;
Intel386 Binary Compatibility Specification, Edition 2 (iBCSe2) ;
IEEE POSIX Std 1003.1-1990 System Application Program Interface (API) [C Language] (ISO/IEC 9945-1) ;
and NIST FIPS 151-1 .