Hi, Jerry Feldman wrote:

But, this requires 2 parameters. Using vector, I could overload foo with an inline single argument function that would achieve the desired result. inline int foo(std::vector<aaa> &x) { std::vector<bbb> y; // empty vector return foo(x, y); }

Is there a good way where I could use a single function call, using vector where the second parameter has a default value as the empty vector. This would also achieve the desired result, but with a performance hit if vector y is populated. int foo(std::vector<aaa> &x, std::vector<bbb> *y =NULL);

(My C++ is rusty). What about overloading foo: int foo(std::vector<aaa> &x) { std::vector<bbb> y; return foo(x, y); } int foo(std::vector<aaa> &x, std::vector<bbb> &y) { return foo(x, y); } In C++, only pointer can be assigned NULL. Also, in the one-argument version, y's scope is only in the function. Regards, Verdi -- "Feel free" - 10 GB Mailbox, 100 FreeSMS/Monat ... Jetzt GMX TopMail testen: http://www.gmx.net/de/go/topmail --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-programming+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-programming+help@opensuse.org