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problem with "RegisterGlobalFunction(...)"
Author
The following code gives me problems (r=-10):
...
void moo(std::string& s)
{
// ....
}
int r = engine->RegisterGlobalFunction("void _moo(std::string&)", asFUNCTIONPR(moo, (std::string&), void), asCALL_CDECL); assert( r >= 0 );
Any idea why this is failing ?
Btw, i dont want to use the "using namespace std".
Did you check the return code? It should be tossing 'invalid declaration', which I believe is -10. AngelScript has no idea what std::string is. You can register std::string - but you can't give it a name with :: in it. Assuming you properly bound std::string to as with the type name 'string', your code would be
int r = engine->RegisterGlobalFunction("void _moo(string& inout)", asFUNCTIONPR(moo, (std::string&), void), asCALL_CDECL); assert( r >= 0 );
Author
I was suspecting "std::string" too, so i tried it with "using namespace std" and just "string", got the same result : -10 (which means INVALID DECLARATION).
Not sure of that but :
replace RegisterGlobalFunction("void _moo(std::string&)"...
with RegisterGlobalFunction("void NothingElseThanATozInFirstPlaceChar_moo(std::string&)"
It might help, but not sure.
AbrKen.
replace RegisterGlobalFunction("void _moo(std::string&)"...
with RegisterGlobalFunction("void NothingElseThanATozInFirstPlaceChar_moo(std::string&)"
It might help, but not sure.
AbrKen.
AngelScript doesn't understand namespaces at the moment, so the 'std::' part of the declaration must be left out.
The 'string' type is also not a built-in type in AngelScript, so it must be registered before you can register any functions using it. How did you register the 'string' type? For an example on how a string type can be registered, look at the scriptstring.cpp in the add_on folder.
Finally when registering a function parameter as a reference, you must also specify one of the keywords 'in', 'out', or 'inout'. Otherwise AngelScript will give an error since it must know how you intend to use the value in the reference.
If you set the message stream, with SetCommonMessageStream(), before calling the RegisterGlobalFunction() method you'll get more information about the error that you have.
Regards,
Andreas
The 'string' type is also not a built-in type in AngelScript, so it must be registered before you can register any functions using it. How did you register the 'string' type? For an example on how a string type can be registered, look at the scriptstring.cpp in the add_on folder.
Finally when registering a function parameter as a reference, you must also specify one of the keywords 'in', 'out', or 'inout'. Otherwise AngelScript will give an error since it must know how you intend to use the value in the reference.
If you set the message stream, with SetCommonMessageStream(), before calling the RegisterGlobalFunction() method you'll get more information about the error that you have.
Regards,
Andreas
Indeed you did. Your statement correctly identified the problem. I was just trying to give more information, to help him move forward with his project. [smile]
This topic is closed to new replies.
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