vector::size (STL/CLR)
The latest version of this topic can be found at vector::size (STL/CLR).
Counts the number of elements.
Syntax
size_type size();
Remarks
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 vector::empty (STL/CLR)().
Example
// cliext_vector_size.cpp
// compile with: /clr
#include <cliext/vector>
int main()
{
cliext::vector<wchar_t> c1;
c1.push_back(L'a');
c1.push_back(L'b');
c1.push_back(L'c');
// display initial contents " a b c"
for each (wchar_t elem in c1)
System::Console::Write(" {0}", elem);
System::Console::WriteLine();
System::Console::WriteLine("size() = {0} starting with 3", c1.size());
// clear the container and reinspect
c1.clear();
System::Console::WriteLine("size() = {0} after clearing", c1.size());
// add elements and clear again
c1.push_back(L'a');
c1.push_back(L'b');
System::Console::WriteLine("size() = {0} after adding 2", c1.size());
return (0);
}
a b c
size
() = 3 starting with 3
size
() = 0 after clearing
size
() = 2 after adding 2
Requirements
Header: <cliext/vector>
Namespace: cliext