1 // RUN: %clang_cc1 -verify %s 2 // RUN: %clang_cc1 -verify %s -std=c++98 3 // RUN: %clang_cc1 -verify %s -std=c++11 4 // RUN: %clang_cc1 -verify %s -std=c++1z 5 6 // PR25946 7 // We had an off-by-one error in an assertion when annotating A<int> below. Our 8 // error recovery checks if A<int> is a constructor declarator, and opens a 9 // TentativeParsingAction. Then we attempt to annotate the token at the exact 10 // position that we want to possibly backtrack to, and this used to crash. 11 12 template <typename T> class A {}; 13 14 // expected-error@+1 {{expected '{' after base class list}} 15 template <typename T> class B : T // not ',' or '{' 16 #if __cplusplus < 201103L 17 // expected-error@+8 {{expected ';' after top level declarator}} 18 #endif 19 #if __cplusplus <= 201402L 20 // expected-error@+5 {{C++ requires a type specifier for all declarations}} 21 #else 22 // expected-error@+3 {{expected unqualified-id}} 23 #endif 24 // expected-error@+1 {{expected ';' after class}} 25 A<int> { 26 }; 27