|PUTC(3)||Library Functions Manual||PUTC(3)|
fputc() function writes the character c (converted to an
unsigned 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 arguments given to
putc() should not be expressions with potential side
putchar() is identical to
putc() with an output stream of
putw() function writes the specified
int w to the named output
putchar() return the character written. If an error occurs, the value
EOFis returned and the global variable errno is set to indicate the error. The
putw() function returns 0 on success;
EOFis returned if a write error occurs, or if an attempt is made to write a read-only stream. The global variable errno may be set to indicate the error.
putw() may also fail and set errno for any of the errors specified for the routines write(2) or realloc(3).
putchar(), conform to ANSI X3.159-1989 (“ANSI C89”).
putw() functions first appeared in Version 1 AT&T UNIX;
putchar() in Version 2 AT&T UNIX; and
fputc() in Version 7 AT&T UNIX.
intmay vary from one machine to another,
putw() is not recommended for portable applications.
|December 1, 2017||OpenBSD-current|