how to exit a child process - _exit() vs. exit

Question

Consider this code snippet:

pid_t cpid = fork();

if (cpid == -1) {
    perror(\"fork\");
    exit(EXIT_FAILURE);
}

if (cpid == 0) { // in child
    execvp(         


        

Answer 1

execvp will exit the child if successfull so you don't have to exit.

On execve failure I simply use exit(EXIT_FAILURE); in the child.

Edit : i found that after some research : http://www.unixguide.net/unix/programming/1.1.3.shtml

So it's looks like it's better to use _exit() in a fork child specially when you are in C++ :p Thanks for your question i learned something :D