c++ - Where is the return value of int main() is stored? -

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this question has answer here:

in program below, value of return 0 stored , mean?

#include <iostream.h>  int main() {   cout<<"hello world";   return 0; }

the return value of main() typically return value of process (e.g. if called command line). exact storage location , transfer mechanism calling shell (or parent process) defined platform being targeted.

a return of 0 (exit_success) typically means program completed without error. non-zero values in turn indicate error - program define exact meaning each value be.


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