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Enable multiple-inheritance from Python Classes and ExtensionClasses.

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[SVN r8058]
This commit is contained in:
Dave Abrahams
2000-10-28 22:48:25 +00:00
parent 966534e709
commit bc3fb27b6a
1 changed files with 4 additions and 21 deletions
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25
newtypes.cpp
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@@ -535,40 +535,23 @@ const CapabilityEntry capabilities[] = {
void add_capability(
std::size_t n,
PyTypeObject* dest_,
AllMethods& all_methods,
const PyTypeObject* src_)
AllMethods& all_methods)
{
assert(n < PY_ARRAY_LENGTH(capabilities));
const CapabilityEntry& c = capabilities[n];
const char* const* src = src_ ? reinterpret_cast<const char* const*>(
reinterpret_cast<const char*>(src_) + c.offset1) : 0;
char** const dest = reinterpret_cast<char**>(
reinterpret_cast<char*>(dest_) + c.offset1);
if (c.substructure_size == 0)
{
if (src == 0 ||
#if defined(__MWERKS__) && __MWERKS__ <= 0x4000 || defined(__alpha) && defined(__osf__)
((const Dispatch*)src)
#else
reinterpret_cast<const Dispatch*>(src)
#endif
!= 0) {
*reinterpret_cast<Dispatch*>(dest) = c.dispatch;
}
*reinterpret_cast<Dispatch*>(dest) = c.dispatch;
}
else
{
if (src == 0 ||
*src != 0 && *reinterpret_cast<const Dispatch*>(*src + c.offset2) != 0)
{
*dest = reinterpret_cast<char*>(&all_methods) + c.allmethods_offset;
*reinterpret_cast<Dispatch*>(*dest + c.offset2) = c.dispatch;
}
*dest = reinterpret_cast<char*>(&all_methods) + c.allmethods_offset;
*reinterpret_cast<Dispatch*>(*dest + c.offset2) = c.dispatch;
}
}
} // namespace detail