putchar_unlocked()

Write a character to stdout

Synopsis:

#include <stdio.h>

int putchar_unlocked( int c );

Library:

libc

Description:

The putchar_unlocked() function is a thread-unsafe version of putchar(). It can be used safely only when the invoking thread has locked stdout using flockfile() (or ftrylockfile()) and funlockfile().

Returns:

The character written, cast as (int)(unsigned char), or EOF if an error occurred (errno is set).

Classification:

POSIX 1003.1

See also:

getc(), getchar(), getchar_unlocked(), getc_unlocked(), putc(), putchar(), putc_unlocked()