priority_queue::size (STL/CLR)

 

The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at priority_queue::size (STL/CLR).

Counts the number of elements.

size_type size();  

The member function returns the length of the controlled sequence. You use it to determine the number of elements currently in the controlled sequence. If all you care about is whether the sequence has nonzero size, see priority_queue::empty (STL/CLR)().

// cliext_priority_queue_size.cpp   
// compile with: /clr   
#include <cliext/queue>   
  
typedef cliext::priority_queue<wchar_t> Mypriority_queue;   
int main()   
    {   
    Mypriority_queue c1;   
    c1.push(L'a');   
    c1.push(L'b');   
    c1.push(L'c');   
  
// display initial contents " a b c"   
    for each (wchar_t elem in c1.get_container())   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
    System::Console::WriteLine("size() = {0} starting with 3", c1.size());   
  
// pop an item and reinspect   
    c1.pop();   
    System::Console::WriteLine("size() = {0} after popping", c1.size());   
  
// add two elements and reinspect   
    c1.push(L'a');   
    c1.push(L'b');   
    System::Console::WriteLine("size() = {0} after adding 2", c1.size());   
    return (0);   
    }  
  

 c a b  
size() = 3 starting with 3  
size() = 2 after popping  
size() = 4 after adding 2  

Header: <cliext/queue>

Namespace: cliext

priority_queue (STL/CLR)
priority_queue::empty (STL/CLR)

Show: