Is destructor called if SIGINT or SIGSTP issued?

Question

I have a class with a user-defined destructor. If the class was instantiated initially, and then SIGINT is issued (using CTRL+C in unix) while the program is running, will t

Answer 1

Let's try it:

#include 
#include 

class Foo {
public:
  Foo() {};
  ~Foo() { printf("Yay!\n"); }
} bar;

int main(int argc, char **argv) {
  sleep(5);
}

And then:

$ g++ -o test ./test.cc 
$ ./test 
^C
$ ./test 
Yay!

So I'm afraid not, you'll have to catch it.

As for SIGSTOP, it cannot be caught, and pauses the process until a SIGCONT is sent.