user11680003
Reputation:
why `_exit` has an underscore prefix while other system calls don't have?
I'm new to C and Linux, just a question on system calls:
so why _exit has an underscore prefix while others don't have?
Upvotes: 2
Views: 337
Answers (1)
dbush
Reputation: 223972
The system call _exit is so named to differentiate it from the library function exit.
Programs should in most cases use the exit library call to terminate the process. This function calls any atexit handlers that were registered before calling _exit internally which actually terminates the process.
Upvotes: 3
Related Questions
- exit() or _exit()?
- C exit() function - what it does?
- EXIT_FAILURE vs exit(1)?
- In C, why certain function name prefix of "_ _" (double underscore)
- Why is this simple code working with `exit` and is not working with `_exit`?
- Use of exit() in C
- what is the difference between _exit function and return statement in linux
- What's the purpose of exit(0) ?
- How can I know how the exit() function work?
- What's the difference between exit and _exit both in libc.so?