11 replies to this topic

[blubberbert]

i know C++ and C (or better: i know what you cant do in C, but can do in C++)
ive already tried writing addins in C but im used to C++ (wrote some progs for PC)
ive heard you can write addins for the fx9860g in C or C++ and now i want to know:
1. Is it true??
2.If yes what features of C++ can you use?
3.What do you use, what do you admit?

[E_net4]

You can only use C for making Addins, and not C++.
If you want to know more about making Addins for your calculator, please proceed to the Casio Educational online service: https://edu.casio.co...wnload_service/
From here you can download the SDK and the manuals for it.

[Andreas B]

For C++: Edit your addin.mak file; change "-lang=c" to "-lang=cpp" and wrap the entire file with: extern "C" { codegoeshere }
Building in the SDK regenerates the addin.mak, so build by running the .bat file in your project instead.

It is like C with classes. I like C.

[alias4399]

Thanks for the instructions, Andreas B .. I thought all you had to do was rename the source file to .cpp

[blubberbert]

thx for the fast replies...(are you guys nocturnal?)
ive tried your solution andreas B but i found out that "-lang=c" is automaticly changed to "-lang=cpp" if a .cpp-file is the source...
i can still run the whole sdk (not the .bat file only) but i dont like that, anyway
but the extern "C"{} - stuff is true
maybe someone has a better solution?
but anyway, what features of C++ can i use(what about templates, classes, inheritance... and what about the standard-libaries )

[alias4399]

Lol its not night time over here and you're welcome

So you have to use extern "C" {}.. ahh ..

AFAIK ... I don't know about what features you can use.. I don't really know what templates are, lol! Guess I'll need to brush up on my C++ before I write a nice app for the fx-9860..

[blubberbert]

ive just tried to devclare a simple template class:
[codebox]extern "C"
{
#include "fxlib.h"

template<class T>
class PAIR
{
public:
T first;
T second;
};
...[/codebox]
but the compiler returns an error:
This declaration may not have extern "C" linkage
i guess this is because of the extern "C"{} - solution... is there maybe another way?
pls help

[Martin]

ive just tried to devclare a simple template class:...pls help

Try to include headers before the extern keyword:

#include "fxlib.h"
extern "C"
{
template<class T>
...

[blubberbert]

i forgot to tell you that the error is about the "template<class T>" line...

[Martin]

i forgot to tell you that the error is about the "template<class T>" line...

Oh it's the opposite way:
This should work (I hope):
extern "C"
{
#include "fxlib.h"
}

template<class T>
...

so only the includes are in extern "C" block

[alias4399]

Smart answer... templates are from C++

[blubberbert]

yeah i found that out now, too...
unfortunately the addin_main()-function needs extern "C", so i have to use
[codebox]
extern "C"
{
// includes
}
//C++ stuff + a fake main()-function if i want to use c++ in the main function
extern "C"
{
addin_main()
{
fake main();
}
}[/codebox]
but i think thats worth it
thx for your help