@node putchar, stdio
@subheading Syntax

@example
#include <stdio.h>

int putchar(int c);
@end example

@subheading Description

This is the same as @code{fputc(c, stdout)}.  @xref{fputc}.

@subheading Return Value

The character written.

@subheading Portability

@portability ansi, posix

@subheading Example

@example
while ((c = getchar()) != EOF)
  putchar(c);
@end example