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Home » Tip Bank » C++
Language: C++
Expertise: All
May 26, 1999

The Default Value Returned From main()

In this example, main() is missing an explicit return statement.
 
  int main()
  {
      printf("hello world");
  }
In C, when control reaches the end of main() without encountering a return statement, it returns an undefined value to the environment. In C++, however, main() implicitly executes a return 0; statement in this case.
Danny Kalev
 
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