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//
Copyright David Abrahams 2002.
//
Distributed under the Boost Software License, Version 1.0. (See
//
accompanying file LICENSE_1_0.txt or copy at
//
http://www.boost.org/LICENSE_1_0.txt)
#
include
<
boost/python/def.hpp
>
#
include
<
boost/python/module.hpp
>
#
include
<
boost/python/class.hpp
>
#
include
<
boost/python/tuple.hpp
>
#
include
<
boost/python/list.hpp
>
#
include
<
boost/python/overloads.hpp
>
#
include
<
boost/python/return_internal_reference.hpp
>
#
if
defined(_AIX) && defined(__EDG_VERSION__) && __EDG_VERSION__ < 245
#
include
<
iostream
>
//
works around a KCC intermediate code generation bug
#
endif
using
namespace
boost
::python
;
namespace
bpl
=
boost::python;
char
const
*
const
format =
"
int(%s); char(%s); string(%s); double(%s);
"
;
//
/////////////////////////////////////////////////////////////////////////////
//
//
Overloaded functions
//
//
/////////////////////////////////////////////////////////////////////////////
object
bar
(
int
a,
char
b, std::string c,
double
d)
{
return
format %
bpl::make_tuple
(a, b, c, d);
}
object
bar
(
int
a,
char
b, std::string c)
{
return
format %
bpl::make_tuple
(a, b, c,
0.0
);
}
object
bar
(
int
a,
char
b)
{
return
format %
bpl::make_tuple
(a, b,
"
default
"
,
0.0
);
}
object
bar
(
int
a)
{
return
format %
bpl::make_tuple
(a,
'
D
'
,
"
default
"
,
0.0
);
}
BOOST_PYTHON_FUNCTION_OVERLOADS
(bar_stubs, bar,
1
,
4
)
//
/////////////////////////////////////////////////////////////////////////////
//
//
Functions with default arguments
//
//
/////////////////////////////////////////////////////////////////////////////
object
foo
(
int
a,
char
b =
'
D
'
, std::string c =
"
default
"
,
double
d =
0.0
)
{
return
format %
bpl::make_tuple
(a, b, c, d);
}
BOOST_PYTHON_FUNCTION_OVERLOADS
(foo_stubs, foo,
1
,
4
)
//
/////////////////////////////////////////////////////////////////////////////
//
//
Overloaded member functions with default arguments
//
//
/////////////////////////////////////////////////////////////////////////////
struct
Y
{
Y
() {}
object
get_state
()
const
{
return
format %
bpl::make_tuple
(a, b, c, d);
}
int
a;
char
b; std::string c;
double
d;
};
struct
X
{
X
() {}
X
(
int
a,
char
b =
'
D
'
, std::string c =
"
constructor
"
,
double
d =
0.0
)
: state(format % bpl::make_tuple(a, b, c, d))
{}
X
(std::string s,
bool
b)
: state(
"
Got exactly two arguments from constructor: string(%s); bool(%s);
"
% bpl::make_tuple(s, b*
1
))
{}
object
bar
(
int
a,
char
b =
'
D
'
, std::string c =
"
default
"
,
double
d =
0.0
)
const
{
return
format %
bpl::make_tuple
(a, b, c, d);
}
Y
const
&
bar2
(
int
a =
0
,
char
b =
'
D
'
, std::string c =
"
default
"
,
double
d =
0.0
)
{
//
tests zero arg member function and return_internal_reference policy
y.
a
= a;
y.
b
= b;
y.
c
= c;
y.
d
= d;
return
y;
}
object
foo
(
int
a,
bool
b=
false
)
const
{
return
"
int(%s); bool(%s);
"
%
bpl::make_tuple
(a, b*
1
);
}
object
foo
(std::string a,
bool
b=
false
)
const
{
return
"
string(%s); bool(%s);
"
%
bpl::make_tuple
(a, b*
1
);
}
object
foo
(list a, list b,
bool
c=
false
)
const
{
return
"
list(%s); list(%s); bool(%s);
"
%
bpl::make_tuple
(a, b, c*
1
);
}
object
get_state
()
const
{
return
state;
}
Y y;
object state;
};
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS
(X_bar_stubs, bar,
1
,
4
)
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS
(X_bar_stubs2, bar2,
0
,
4
)
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS
(X_foo_2_stubs, foo,
1
,
2
)
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS
(X_foo_3_stubs, foo,
2
,
3
)
//
/////////////////////////////////////////////////////////////////////////////
BOOST_PYTHON_MODULE
(defaults_ext)
{
def
(
"
foo
"
, foo,
foo_stubs
());
def
(
"
bar
"
, (
object
(*)(
int
,
char
, std::string,
double
))
0
,
bar_stubs
());
class_<Y>(
"
Y
"
, init<>(
"
doc of Y init
"
))
//
this should work
.
def
(
"
get_state
"
, &Y::get_state)
;
class_<X>(
"
X
"
,no_init)
.
def
(init<optional<
int
,
char
, std::string,
double
> >(
"
doc of init
"
,
args
(
"
self
"
,
"
a
"
,
"
b
"
,
"
c
"
,
"
d
"
)))
.
def
(init<std::string,
bool
>(
args
(
"
self
"
,
"
s
"
,
"
b
"
))[
default_call_policies
()])
//
what's a good policy here?
.
def
(
"
get_state
"
, &X::get_state)
.
def
(
"
bar
"
, &X::bar,
X_bar_stubs
())
.
def
(
"
bar2
"
, &X::bar2,
X_bar_stubs2
(
"
doc of X::bar2
"
)[return_internal_reference<>()])
.
def
(
"
foo
"
, (
object
(X::*)(std::string,
bool
)
const
)
0
,
X_foo_2_stubs
())
.
def
(
"
foo
"
, (
object
(X::*)(
int
,
bool
)
const
)
0
,
X_foo_2_stubs
())
.
def
(
"
foo
"
, (
object
(X::*)(list, list,
bool
)
const
)
0
,
X_foo_3_stubs
())
;
}
#
include
"
module_tail.cpp
"
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