Ctrl + C interrupt event handling in Linux

Question

I am developing an application that uses C++ and compiles using Linux GNU C Compiler.

I want to invoke a function as the user interrupts the script using Ctrl<

Answer 1

You can use the signal macro.

Here is an example of how to deal with it:

#include 
#include 
void sigint(int a)
{
    printf("^C caught\n");
}
int main()
{
    signal(SIGINT, sigint);
    for (;;) {}
}

Sample output:

Ethans-MacBook-Pro:~ phyrrus9$ ./a.out
^C^C caught
^C^C caught
^C^C caught
^C^C caught
^C^C caught