How to reset SIGINT to default after pointing it some user-defined handler for some time?

Question

I use signal(SIGINT,my_handler) to point SIGINT to my_handler. After some time I want to reset it to whatever default handler it points to in general. How can I do that?

Answer 1

Pass SIG_DFL as the func parameter to signal() to reset default behaviour:

signal(SIGINT, SIG_DFL);