std::stack<T,Container>::size

 

C++

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size_type size()const;

Returns the number of elements in the container adaptor. Equivalent to: return c.size().

Parameters

(none)

Return value

The number of elements in the container adaptor.

Complexity

Constant.

Example

Run this code

#include <cassert>#include <stack>   int main(){std::stack<int> stack;assert(stack.size()==0);   constint count =8;for(int i =0; i != count;++i) stack.push(i);assert(stack.size()== count);}

See also

empty	checks whether the container adaptor is empty (public member function)
sizessize (C++17)(C++20)	returns the size of a container or array (function template)