1PUTC(3S)                                                              PUTC(3S)
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NAME

6       putc, putchar, fputc, putw - put character or word on a stream
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SYNOPSIS

9       #include <stdio.h>
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11       int putc(c, stream)
12       char c;
13       FILE *stream;
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15       int putchar(c)
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17       int fputc(c, stream)
18       FILE *stream;
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20       int putw(w, stream)
21       FILE *stream;
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DESCRIPTION

24       Putc  appends  the  character c to the named output stream.  It returns
25       the character written.
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27       Putchar(c) is defined as putc(c, stdout).
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29       Fputc behaves like putc, but is a genuine function rather than a macro.
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31       Putw appends word (that is, int) w to the output  stream.   It  returns
32       the word written.  Putw neither assumes nor causes special alignment in
33       the file.
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SEE ALSO

36       fopen(3S), fclose(3S), getc(3S), puts(3S), printf(3S), fread(3S)
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DIAGNOSTICS

39       These functions return the constant EOF upon error.  Since  this  is  a
40       good integer, ferror(3S) should be used to detect putw errors.
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BUGS

43       Because  it  is  implemented  as a macro, putc treats a stream argument
44       with side effects improperly.  In particular
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46       putc(c, *f++);
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48       doesn't work sensibly.
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50       Errors can occur long after the call to putc.
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547th Edition                    November 6, 1985                       PUTC(3S)