Abort operations in c

[Jeevan Rudramurthy]

I want to write a c application in such a way that I want to abort the current operation and I want to go back to the previous operation is there is any API to terminate the current operations and go back to the previous operations in c. I cannot use the abort function in c because its will terminate whole application.

[Igor Vartanov]

You must program on your own everything related to interrupting your operations as well as bouncing back to previous ones. There is no such API, and cannot be expected any soon, as such API hardly makes sense or worth being implemented in general.

[2kaud]

What do you mean by current and previous operation - block, function, thread ...??

[Jeevan Rudramurthy]

functions and threads

[2kaud]

To abort a function just use return when needed - with a specific return code if required for which the calling function can check. Note that any allocated resources (eg memory, handles etc) need to be freed/closed before returning.

Or use c++ exceptions (try/throw/catch) - note same comment re resources applies.

For threads, are you using c++11 threads or if using specific OS API thread functions, which ones? How are you using threads?

How can depend upon why and what is trying to be accomplished.