getchar_unlocked()
Get a character from stdin
Synopsis:
#include <stdio.h> int getchar_unlocked( void );
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The getchar_unlocked() function is a thread-unsafe version of getchar(). You can use it safely only when the invoking thread has locked stdin using flockfile() (or ftrylockfile()) and funlockfile().
Returns:
The next character from the input stream pointed to by stdin, cast as (int)(unsigned char), or EOF if an end-of-file or error condition occurs (errno is set).
Classification:
| Safety: | |
|---|---|
| Cancellation point | Yes |
| Interrupt handler | No |
| Signal handler | No |
| Thread | No |