STL syntax, container with reference to pointer

Question

i want to create a container which contains references to pointers

1) Is this possible?

2) What is the syntax?

I imagine its

<T*&>

ie: std::stack< int*& > stack_;

but this just gives me errors "xmemory: pointer to reference is illegal."

fredoverflow · Accepted Answer · 2011-03-20 12:35:49Z

4

You cannot use references as the element type of a container, because there is no such thing as a reference object in C++.

What exactly are you trying to achieve? Why not simply use a std::stack<int>?

answered Mar 20, 2011 at 12:35

fredoverflow

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2 Comments

aCuria Over a year ago

I want a stack of pointers. When the pointers in the stack are modified, the original pointer that was passed into the stack should be modified too. I guess the solution is to use a stack of pointers to pointers.

Bo Persson Over a year ago

Pointer to pointers are hardly ever the right solution... :-(

Sarfaraz Nawaz · Accepted Answer · 2011-03-20 12:41:56Z

0

Why don't you use std::stack<int*>? What advantages do you see in using references to pointers? Or maybe, just std::stack<int> should suffice your need? Have you tried them?

answered Mar 20, 2011 at 12:41

Sarfaraz Nawaz

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