On Fri, Mar 16, 2012 at 4:07 PM, Stewart, Robert <Robert.Stewart@sig.com> wrote:
Neal Becker wrote:
It seems c++11 has a new way to spell enable_if, and this can be used to implement has_member_fnc, as in this example:
I wish I could see the code, but pastebin is blocked here.
template <typename T> //Special template for EE_PDUs, which are weird auto getKey_imp(const T &struc, int &key, int) -> decltype(struc.interesting_member, void()) //If struc has an interesting_member member, this version is used { key = 0; } template <typename T> void getKey_imp(const T &struc, int &key, long) //struc didn't have an interesting_member member, do nothing { } public: template <typename T> bool getKey(const T &struc, int &key) { getKey_imp(struc, key, 0); return key == 0; //Successful? } -- Olaf