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Home » Tip Bank » C++
Language: C++
Expertise: Intermediate
Nov 19, 1998

Checking Whether a Stack Is Empty

It is an error to call the member function pop() on an empty stack. If you are not sure whether a stack contains any elements, you can use the member function empty() to check it first:
 
stack<int> stk;
//_many lines of code
if (!stk.empty() ) //test stack before popping it
{
    stk.pop(); 
}
Danny Kalev
 
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