oremanj e7761e3383 Fix potential crash when calling an overloaded function (#1327) ... * Fix potential crash when calling an overloaded function The crash would occur if: - dispatcher() uses two-pass logic (because the target is overloaded and some arguments support conversions) - the first pass (with conversions disabled) doesn't find any matching overload - the second pass does find a matching overload, but its return value can't be converted to Python The code for formatting the error message assumed `it` still pointed to the selected overload, but during the second-pass loop `it` was nullptr. Fix by setting `it` correctly if a second-pass call returns a nullptr `handle`. Add a new test that segfaults without this fix. * Make overload iteration const-correct so we don't have to iterate again on second-pass error * Change test_error_after_conversions dependencies to local classes/variables		2018-09-25 23:55:18 +02:00
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pybind11	Fix potential crash when calling an overloaded function (#1327)	2018-09-25 23:55:18 +02:00