Hi Alain, are you sure that funct indeed points to an instance of your class? In other words, have you done something like x->funct = new Test; before?

greetings, Thomas

Am 15.06.2007 um 18:57 schrieb nosehair911@bellsouth.net nosehair911@bellsouth.net:

I'm having problems calling functions and I'm currious if I a doing it the right way. I a writing the external in c++. I make a class Test and I declare a function for example:

void Test::post_filepath(char* path) {post( "opening %s", path);}

Then within the externals typedef stucture I include a pointer to the class for example:

typedef struct _myexternal { t_object x_obj; Test *funct; } t_myexternal;

When I call the function like this:

void capture_cap(t_myexternal *x, t_symbol *file) {x->funct-

...

post_filepath(file->s_name);}

Pd crashes, I have to do it like this to avoid a crash:

void capture_cap(t_myexternal *x, t_symbol *file) {post( "opening % s", file->s_name);}

what am I doing wrong and what is the proper way to do it? Thanks, Alain

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