PUTCHAR_UNLOCKED(3) Library Functions Manual PUTCHAR_UNLOCKED(3)
NAME
putchar_unlocked —
stdio with explicit client locking
SYNOPSIS
#include <stdio.h> int putchar_unlocked(int c);
DESCRIPTION
Refer to getc_unlocked(3) .
DERIVATION
Derived from the POSIX Threads Extension (1003.1c-1995)
February 1997 posix.fail