fputc, putc, putchar, putw - output a character or word to a
fputc(int c, FILE *stream);
putc(int c, FILE *stream);
putw(int w, FILE *stream);
The fputc() function writes the character c (converted to an
char) to the output stream pointed to by stream.
putc() acts essentially identically to fputc(), but is a
macro that expands
in-line. It may evaluate stream more than once, so
to putc() should not be expressions with potential side effects.
putchar() is identical to putc() with an output stream of
The putw() function writes the specified int w to the named
The functions fputc(), putc(), and putchar() return the
If an error occurs, the value EOF is returned. The
returns 0 on success; EOF is returned if a write error occurs, or if an
attempt is made to write a read-only stream.
ferror(3), fopen(3), getc(3), stdio(3)
The functions fputc(), putc(), and putchar(), conform to ANSI X3.159-1989
(``ANSI C''). A function putw() function appeared in Version 6 AT&T
Since the size and byte order of an int varies from one machine to another,
putw() is not recommended for portable applications.
OpenBSD 3.6 June 4, 1993
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