vector::shrink_to_fit

捨棄多餘的容量。

void shrink_to_fit( );

範例

// vector_shrink_to_fit.cpp
// compile with: /EHsc
#include <vector>
#include <iostream>

int main( )
{
   using namespace std;   
   vector <int> v1;
   //vector <int>::iterator Iter;

   v1.push_back(1);
   cout << "Current capacity of v1 = " 
      << v1.capacity() << endl;
   v1.reserve(20);
   cout << "Current capacity of v1 = " 
      << v1.capacity() << endl;
   v1.shrink_to_fit();
   cout << "Current capacity of v1 = " 
      << v1.capacity() << endl;
}

需求

標頭：<vector>

命名空間: std

請參閱

參考

vector 類別

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