Re: operator<< and namespace

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#837

From: Mark P
Date: Wed, 19 Oct 2005 21:55

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Thomas Maeder wrote:
> "Al-Burak" <jalqadir@netscape.net> writes:
> 
> 
>>Correction
>>I accidentally forgot to add the name of the namespace
> 
> 
> As suspected.
> 
> 
> 
>>--------- name.cpp
>>std::ostream& operator<<( std::ostream& os, const jme::Name& obj ) {
>>return os << obj.getNameStr(); }
>>std::istream& operator>>( std::istream& is, jme::Name& obj ) {
>>   return is >> obj.str;
>>}
> 
> 
> This is your problem. As defined here, these operators belong to the
> global namespace. But you want them to belong to the namespace jme:
> 
> namespace jme
> {
>   std::ostream &operator<<(std::ostream &os, Name const &obj)
>   {
>     return os << obj.getNameStr();
>   }
> 
>   std::istream &operator>>(std::istream &is, Name &obj)
>   {
>     return is >> obj.str;
>   }
> }
> 
> and you should be fine.

Am I mistaken in thinking that the functions need to be declared in a 
header included by main.cpp?  I see a "friend" declaration in name.hpp 
and a definition in name.cpp, but I thought a friend declaration alone 
did not imply a function declaration.

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Subject: Re: operator<< and namespace
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