@(#)putc.3 6.3 (Berkeley) 04/01/89
PUTC 3 ""
.AT 3
NAME
putc, putchar, fputc, putw - put character or word on a stream
SYNOPSIS
#include <stdio.h> int putc(c, stream)
char c;
FILE *stream;
int putchar(c)
int fputc(c, stream)
FILE *stream;
int putw(w, stream)
FILE *stream;
DESCRIPTION
Putc appends the character
c to the named output
stream . It returns the character written.
Putchar ( c ) is defined as putc ( c , stdout ).
Fputc behaves like putc , but is a genuine function rather than a macro.
Putw appends word (that is, int ) w to the output stream . It returns the word written. Putw neither assumes nor causes special alignment in the file.
"SEE ALSO"
fopen(3),
fclose(3),
getc(3),
puts(3),
printf(3),
fread(3)
DIAGNOSTICS
These functions return the constant
EOF upon error. Since this is a good integer,
ferror (3) should be used to detect
putw errors.
BUGS
Because it is implemented as a macro,
putc treats a
stream argument with side effects improperly. In particular
"putc(c, *f++);"
doesn't work sensibly.
Errors can occur long after the call to putc .