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Python implicitconv assert fix using debug build of the Python interpreter

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An error was not being set if an implicit conversion was attempted
calling an explicit constructor.

Fixes:
Fatal Python error: a function returned NULL without setting an error
SystemError: <built-in function new_A> returned NULL without setting an error

File "Examples/test-suite/python/implicittest.py", line 106 in __init_
This commit is contained in:
William S Fulton 2018-09-04 07:22:20 +01:00
commit 3af1b74e57
1 changed files with 4 additions and 1 deletions
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5
Lib/python/pyrun.swg
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@ -290,7 +290,10 @@ SWIGRUNTIMEINLINE int
SWIG_Python_CheckImplicit(swig_type_info *ty)
{
SwigPyClientData *data = (SwigPyClientData *)ty->clientdata;
return data ? data->implicitconv : 0;
int fail = data ? data->implicitconv : 0;
if (fail)
PyErr_SetString(PyExc_TypeError, "Implicit conversion is prohibited for explicit constructors.");
return fail;
}
SWIGRUNTIMEINLINE PyObject *