explicit etc.

[Michael]

Hi
I don't understand this line:
-----
explicit InterfaceQuery(FMSInterfaces iid) : interfaceId(iid),
itsInterface(0) {}
-----
as below. What exactly is that doing?
Many thanks
Michael

---------

enum FMSInterfaces {
FMSSystemInterface,
FMSDatabaseInterface,
FMSPadInterface,
FMSIRSInterface,
FMSPrefInterface
};

struct InterfaceQuery
{
explicit InterfaceQuery(FMSInterfaces iid) : interfaceId(iid),
itsInterface(0) {}

FMSInterfaces interfaceId;
void* itsInterface;
};

 

[Victor Bazarov]

I don't understand this line:

It's a constructor. Please read your favorite C++ book about constructors.

Many thanks
Michael

---------

enum FMSInterfaces {
FMSSystemInterface,
FMSDatabaseInterface,
FMSPadInterface,
FMSIRSInterface,
FMSPrefInterface
};

struct InterfaceQuery
{
explicit InterfaceQuery(FMSInterfaces iid) : interfaceId(iid),
itsInterface(0) {}

FMSInterfaces interfaceId;
void* itsInterface;
};

V