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D - std.c.stdlib (atexit)

reply =?iso-8859-1?Q?Miguel_Ferreira_Sim=F5es?= <kobold netcabo.pt> writes:
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hi, again! i need some help... i am doing a singleton class (templated =
with Destructors).
the problem is that i don't know how to pass a D pointer to function to =
the c function atexit (std.c.stdlib)!!!

[compiler says: function atexit (void(C*)()) does not match argument =
types (void(*)()) ]

    private import std.c.stdlib;
    extern (C) int atexit(void (*)());

    interface IDestructor {
    public:
        void create(void (*dtor)());
    }

    class DestructorAtExit : IDestructor {
    public:
        void create(void (*dtor)()) { atexit(dtor); }
    }

thanks,
Miguel Ferreira Sim=F5es
Apr 07 2004
parent reply Carlos Santander B. <Carlos_member pathlink.com> writes:
In article <c51gsn$omq$1 digitaldaemon.com>,
=?iso-8859-1?Q?Miguel_Ferreira_Sim=F5es?= says...

hi, again! i need some help... i am doing a singleton class (templated =
with Destructors).
the problem is that i don't know how to pass a D pointer to function to =
the c function atexit (std.c.stdlib)!!!

[compiler says: function atexit (void(C*)()) does not match argument =
types (void(*)()) ]

    private import std.c.stdlib;
    extern (C) int atexit(void (*)());

    interface IDestructor {
    public:
        void create(void (*dtor)());
    }

    class DestructorAtExit : IDestructor {
    public:
        void create(void (*dtor)()) { atexit(dtor); }
    }

thanks,
Miguel Ferreira Sim=F5es



This works for me:

private import std.c.stdlib;
alias void function () c_func;

extern (C) int atexit(c_func);

interface IDestructor {
public:
void create(c_func);
}

class DestructorAtExit : IDestructor {
public:
void create(c_func dtor) { atexit(dtor); }
}

import std.c.stdio;
void foo() { printf("bye"); }

void main() {
(new DestructorAtExit).create( &foo );
}

-------------------
Carlos Santander B.
Apr 07 2004
parent "Miguel Ferreira Simões" <kobold netcabo.pt> writes:
thanks, it works!!!
Apr 07 2004