多选题

Which of the following...

Question

Which of the following statments are correct for fork() ?（多选）

A. If the call to fork() is successful, it returns process ID of the parent process to the newly created child process and a zero to the parent process.

B. If the call to fork() is successful, both processes will start their execution at the next statement following the fork() call.

C. If the call to fork() is not successful, it returns a negative value to the parent process.

D. If the call to fork() is successful, the child process a copy of the address space of the parent process therefor it also inherits the threads of parent process.