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avoid use of sizeof to enable compilation with buggy gcc 3.3; change as per David Abrahams' instructions

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[SVN r18549]
This commit is contained in:
Ralf W. Grosse-Kunstleve
2003-05-26 19:06:00 +00:00
parent dccf2bbb4a
commit e369bddc84
1 changed files with 3 additions and 6 deletions
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9
include/boost/python/converter/as_to_python_function.hpp
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@@ -19,16 +19,13 @@ struct as_to_python_function
// the first overload ensures it isn't used in case T is a
// reference.
template <class U>
static int convert_function_must_take_value_or_const_reference(U(*)(T), int, T* = 0);
static void convert_function_must_take_value_or_const_reference(U(*)(T), int, T* = 0) {}
template <class U>
static int convert_function_must_take_value_or_const_reference(U(*)(T const&), long ...);
static void convert_function_must_take_value_or_const_reference(U(*)(T const&), long ...) {}
static PyObject* convert(void const* x)
{
BOOST_STATIC_ASSERT(
sizeof(
convert_function_must_take_value_or_const_reference(&ToPython::convert, 1L))
== sizeof(int));
convert_function_must_take_value_or_const_reference(&ToPython::convert, 1L);
// Yes, the const_cast below opens a hole in const-correctness,
// but it's needed to convert auto_ptr<U> to python.