putchar_unlocked
![]() |
![]() |
![]() |
![]() |
putchar_unlocked()
Write a character to stdout
Synopsis:
#include <stdio.h> int putchar_unlocked( int c );
Arguments:
- c
- The character that you want to write.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The putchar_unlocked() function is a thread-unsafe version of putchar(). You can use it 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:
| Safety: | |
|---|---|
| Cancellation point | Yes |
| Interrupt handler | No |
| Signal handler | No |
| Thread | No |
See also:
getc(), getc_unlocked(), getchar(), getchar_unlocked(), putc(), putc_unlocked(), putchar()
![]() |
![]() |
![]() |
![]() |

![[Previous]](../prev.gif)
![[Contents]](../contents.gif)
![[Index]](../keyword_index.gif)
![[Next]](../next.gif)
