How is it breaking out of the for loop in this C++ code?

Here is the code:

这是代码：

for (int i=0;i<someClass::someList.entries();i++)
    returnBool |= (someOtherClass.get_something() == 
                  ((someClass*)(someClass::someList[i]))->get_something_else());
for (int i=0;i<some