Re: passing temporary storage as a non-const parameter to a function

[Ulrich Eckhardt]

jjleto wrote:
>  void f1(const string& msg) { cout << msg << endl; }
>  void f2(string& msg) { cout << msg << endl; }
> 
>  int main()
>  {
>   f1(string("foo")); // OK
>   f2(string("foo")); // NOK.
>  }
> 
> I've got the following error on the line calling f2():
> 
> error: invalid initialization of non-const reference of type 
> 'std::string&' from a temporary of type 'std::string' (gcc 3.3.4)

Nothing to do with g++, just normal C++. Other than the solutions already
proposed, you can also const_cast the problem away.

Uli

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