Namespace lfun::

Description

Callback functions used to overload various builtin functions.

The functions can be grouped into a few sets:

• Object initialization and destruction.

  __INIT(), create(), destroy()

• Unary operator overloading.

  `~(), `!(), _values(), cast(), _sizeof(), _indices(), __hash()

• Binary asymmetric operator overloading.

  `+(), ``+(), `-(), ``-(), `&(), ``&(), `|(), ``|(), `^(), ``^(), `<<(), ``<<(), `>>(), ``>>(), `*(), ``*(), `/(), ``/(), `%(), ``%()

• Binary symmetric operator overloading.

  The optimizer will make assumptions about the relations between these functions.

  `==(), _equal(), `<(), `>()

• Other binary operator overloading.

  `[](), `[]=(), `->(), `->=(), `+=(), `()()

• Overloading of other builtin functions.

  _is_type(), _sprintf(), _m_delete(), _get_iterator(), _search()

Note

Although these functions are called from outside the object they exist in, they will still be used even if they are declared protected. It is in fact recommended to declare them protected, since that will hinder them being used for other purposes.

See also

::

Variable symbol

mixed lfun::symbol

Method create

void lfun:create(zero ... args)

Description

Object creation callback.

This function is called right after lfun::__INIT().

args are the arguments passed when the program was called.

Note

In Pike 7.2 and later this function can be created implicitly by the compiler using the new syntax:

class Foo(int foo) {
  int bar;
}

In the above case an implicit lfun::create() is created, and it's equivalent to:

class Foo {
  int foo;
  int bar;
  protected void create(int foo)
  {
    local::foo = foo;
  }
}

See also

lfun::__INIT(), lfun::destroy()