[boost] Re: [string algo review] overloading on const

From: David Abrahams (dave_at_[hidden])
Date: 2003-10-23 14:11:35

Pavol Droba <droba_at_[hidden]> writes:

>> I'm not sure a fix is needed.  The first variant will already match
>> const containers, as long as they're not temporaries.
>> 
>>       
>>       template <class T>
>>       int f(T& x);
>> 
>>       int const x;
>>       int y = f(x); // T deduced as const int.
>> 
>
> You are right, there is no restriction on const, rather ther is a restriction,
> that the input must be valid R-value i.e. not a temporary.

Temporaries *are* rvalues; I think you must mean lvalue.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com