1 // No PCH: 2 // RUN: %clang_cc1 -pedantic -std=c++1y -include %s -include %s -verify %s 3 // 4 // With chained PCH: 5 // RUN: %clang_cc1 -pedantic -std=c++1y -emit-pch %s -o %t.a 6 // RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t.a -emit-pch %s -o %t.b 7 // RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t.b -verify %s 8 9 // expected-no-diagnostics 10 11 #if !defined(HEADER1) 12 #define HEADER1 13 14 auto &f(int &); 15 16 template<typename T> decltype(auto) g(T &t) { 17 return f(t); 18 } 19 20 #elif !defined(HEADER2) 21 #define HEADER2 22 23 // Ensure that this provides an update record for the type of HEADER1's 'f', 24 // so that HEADER1's 'g' can successfully call it. 25 auto &f(int &n) { 26 return n; 27 } 28 29 #else 30 31 int n; 32 int &k = g(n); 33 34 #endif 35
