https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66857
Bug ID: 66857 Summary: Reference not bound to lvalue Product: gcc Version: 5.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: sebastian.lauwers at gmail dot com Target Milestone: --- Created attachment 35967 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35967&action=edit preprocessed code Reporting this as it seems to be a regression from gcc 4.9.2. The following code works on gcc 4.9.2, but asserts on gcc 5.1.1: =========== 8< ========== #include <cassert> const int i = 0; struct Test { Test(const int& rhs) { assert(&rhs == &i); } }; int main(void) { Test test = i; } =========== >8 ========== If line 12 is changed to: Test test(i); The assertion is not triggered. Please let me know if further information is required.