list::splice (STL/CLR)

Article
06/05/2017

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Syntax

void splice(iterator where, list<Value>% right);  
void splice(iterator where, list<Value>% right,  
    iterator first);  
void splice(iterator where, list<Value>% right,  
    iterator first, iterator last);

Parameters

first
Beginning of range to splice.

last
End of range to splice.

right
Container to splice from.

where
Where in container to splice before.

Remarks

The first member function inserts the sequence controlled by right before the element in the controlled sequence pointed to by where. It also removes all elements from right. (%``right must not equal this.) You use it to splice all of one list into another.

The second member function removes the element pointed to by first in the sequence controlled by right and inserts it before the element in the controlled sequence pointed to by where. (If where == first || where == ++``first, no change occurs.) You use it to splice a single element of one list into another.

The third member function inserts the subrange designated by [``first``, last``) from the sequence controlled by right before the element in the controlled sequence pointed to by where. It also removes the original subrange from the sequence controlled by right. (If right == this, the range [``first``, last``) must not include the element pointed to by where.) You use it to splice a subsequence of zero or more elements from one list into another.

Example

// cliext_list_splice.cpp   
// compile with: /clr   
#include <cliext/list>   
  
int main()   
    {   
    cliext::list<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();   
  
// splice to a new list   
    cliext::list<wchar_t> c2;   
    c2.splice(c2.begin(), c1);   
    System::Console::WriteLine("c1.size() = {0}", c1.size());   
    for each (wchar_t elem in c2)   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
  
// return one element   
    c1.splice(c1.end(), c2, c2.begin());   
    for each (wchar_t elem in c1)   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
  
    for each (wchar_t elem in c2)   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
  
// return remaining elements   
    c1.splice(c1.begin(), c2, c2.begin(), c2.end());   
    for each (wchar_t elem in c1)   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
    System::Console::WriteLine("c2.size() = {0}", c2.size());   
    return (0);   
    }

 a b c  
c1.size
() = 0  
 a b c  
 a  
 b c  
 b c a  
c2.size
() = 0

Requirements

Header: <cliext/list>

Namespace: cliext

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