putc_unlocked()
Write a character to an output stream
Synopsis:
#include <stdio.h> int putc_unlocked( int c, FILE *stream );
Arguments:
- c
- The character that you want to write.
- stream
- The stream you want to write the character on.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The putc_unlocked() function is a thread-unsafe version of putc() . You can use it safely only when the invoking thread has locked stream 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 |