I have a function that has takes some objects by value.

sendEvent(const uint id, EventArg = EventArg(), EventArg = EventArg() .... );

EventArg has constructors for all the available types it can handle, including string.

However if I pass a string inline

sendEvent(123, "string", 1.234f);

// Generates error.
No matching signatures to 'EventManager::sendInstantEvent(const uint, const string, const float)'

// However this works.
string stringVar = "foo";
sendEvent(123, stringVar, floatVar);

EventArg is registered as a value type and has ctors for string (I tried both ref and pass by value).

I assume this might have something todo with the string addon, its not a big issue but I would like to know why this might be happening.


The Registrations

.addCtor("void f()",     asFUNCTION(EventArgCtor),  asCALL_CDECL_OBJLAST)
//.addCtor("void f(const string)",  asFUNCTION(EventArgString2Ctor),asCALL_CDECL_OBJLAST)
.addCtor("void f(const string &in)", asFUNCTION(EventArgStringCtor), asCALL_CDECL_OBJLAST)
.addCtor("void f(const float)",   asFUNCTION(EventArgFloatCtor), asCALL_CDECL_OBJLAST)
.addCtor("void f(const uint)",   asFUNCTION(EventArgUInt32Ctor), asCALL_CDECL_OBJLAST)
.addCtor("void f(const int)",   asFUNCTION(EventArgInt32Ctor), asCALL_CDECL_OBJLAST)
.addCtor("void f(const EventArg &in)", asFUNCTION(EventArgCCtor),  asCALL_CDECL_OBJLAST)
.addDtor("void f()",     asFUNCTION(EventArgDtor),  asCALL_CDECL_OBJLAST)

.addMethod("void sendInstantEvent(const uint, EventArg = EventArg(), EventArg = EventArg(), EventArg = EventArg(), EventArg = EventArg(), EventArg = EventArg(), EventArg = EventArg(), EventArg = EventArg(), EventArg = EventArg())", asMETHODPR(CaffSys::EventManager, sendInstantEvent, (const CaffSys::EventID id, CaffSys::EventArg, CaffSys::EventArg, CaffSys::EventArg, CaffSys::EventArg, CaffSys::EventArg, CaffSys::EventArg, CaffSys::EventArg, CaffSys::EventArg), void), asCALL_THISCALL)

Any ideas?

Edit
I actually get this with any type that I've added I just tried to add Vec3 which is a value type and I get the same message.

Further Edit
Hmm I can't remember why I opted for pass by type, but pass by ref (including Vec3/string) yeilds a Bad Access crash in asCContext::ExecuteNext().

I should mention that EventArg is basically (but not) boost::variant. Variant<std::nullptr_t, float, int, uint, Vec3, std::string>

Ah sorry :)

Thanks for looking into it. This is just a convince function I have in C++, it isn't something I really like doing with implicit ctors.