How to handle variable number of arguments?

How to define such a function that:
>
1. Accept variable number of std::string arguments,
can be 1, 2, or 3 arguments.
2. Find the longest common prefix of all these strings and
return the position of the end of the longest prefix?

int myfunc(const std::string& first=std::string(),const std::string&
second=std::string(),const std::string& third=std::string())
{
int where;
bool match=false;
//do somestuff)
if(!nomatch)
return -1;
return where;
>
}
Lambda wrote:

Quote: How to define such a function that:

>

Quote: 1. Accept variable number of std::string arguments, can be 1, 2, or 3 arguments. 2. Find the longest common prefix of all these strings and return the position of the end of the longest prefix?

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>