https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62155
Bug ID: 62155 Summary: ICE in tsubst_copy, at cp/pt.c:12544 Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: doko at gcc dot gnu.org works on the trunk, fails on the 4.8 and 4.9 branches: $ cat test.cc template <typename T> struct S { T i{[this] {}}; }; S<int> s; $ /usr/lib/gcc-snapshot/bin/g++ -std=c++11 -c test.cc test.cc:5:8: error: cannot convert '<brace-enclosed initializer list>' to 'int' in initialization S<int> s; ^ test.cc: In constructor 'constexpr S<int>::S()': test.cc:1:30: error: cannot convert '<brace-enclosed initializer list>' to 'int' in initialization template <typename T> struct S { ^ test.cc: At global scope: test.cc:5:8: note: synthesized method 'constexpr S<int>::S()' first required here S<int> s; ^ $ g++ -std=c++11 -c test.cc test.cc: In instantiation of 'struct S<int>::<lambda()>': test.cc:1:30: required from here test.cc:2:8: internal compiler error: in tsubst_copy, at cp/pt.c:12544 T i{[this] {}}; ^ Please submit a full bug report, with preprocessed source if appropriate.