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vector::at (STL/CLR)

  • Artikel

Accesses an element at a specified position.

    reference at(size_type pos);

Parameters

  • pos
    Position of element to access.

Remarks

The member function returns a reference to the element of the controlled sequence at position pos. You use it to read or write an element whose position you know.

Example

// cliext_vector_at.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 contents " a b c" using at 
    for (int i = 0; i < c1.size(); ++i) 
        System::Console::Write(" {0}", c1.at(i)); 
    System::Console::WriteLine(); 
 
// change an entry and redisplay 
    c1.at(1) = L'x'; 
    for (int i = 0; i < c1.size(); ++i) 
        System::Console::Write(" {0}", c1[i]); 
    System::Console::WriteLine(); 
    return (0); 
    } 
 

 a b c
 a x c

Requirements

Header: <cliext/vector>

Namespace: cliext

See Also

Concepts

vector (STL/CLR)

vector::operator[] (STL/CLR)