1*0a6a1f1dSLionel Sambuc // RUN: cp %s %t 2*0a6a1f1dSLionel Sambuc // RUN: %clang_cc1 -fsyntax-only -verify %s 3*0a6a1f1dSLionel Sambuc // RUN: not %clang_cc1 -x c++ -fixit %t -Werror -DFIXIT 4*0a6a1f1dSLionel Sambuc // RUN: %clang_cc1 -x c++ %t -DFIXIT 5*0a6a1f1dSLionel Sambuc // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++1z -Wc++14-compat 6*0a6a1f1dSLionel Sambuc 7*0a6a1f1dSLionel Sambuc namespace foo1::foo2::foo3 { 8*0a6a1f1dSLionel Sambuc #if __cplusplus <= 201400L 9*0a6a1f1dSLionel Sambuc // expected-warning@-2 {{nested namespace definition is a C++1z extension; define each namespace separately}} 10*0a6a1f1dSLionel Sambuc #else 11*0a6a1f1dSLionel Sambuc // expected-warning@-4 {{nested namespace definition is incompatible with C++ standards before C++1z}} 12*0a6a1f1dSLionel Sambuc #endif foo(int x)13*0a6a1f1dSLionel Sambuc int foo(int x) { return x; } 14*0a6a1f1dSLionel Sambuc } 15*0a6a1f1dSLionel Sambuc 16*0a6a1f1dSLionel Sambuc #ifndef FIXIT 17*0a6a1f1dSLionel Sambuc inline namespace goo::bar { // expected-error {{nested namespace definition cannot be 'inline'}} expected-warning 0-1{{C++11 feature}} 18*0a6a1f1dSLionel Sambuc int n; 19*0a6a1f1dSLionel Sambuc } 20*0a6a1f1dSLionel Sambuc 21*0a6a1f1dSLionel Sambuc int m = goo::bar::n; 22*0a6a1f1dSLionel Sambuc #endif 23*0a6a1f1dSLionel Sambuc foo(int x)24*0a6a1f1dSLionel Sambucint foo(int x) { 25*0a6a1f1dSLionel Sambuc return foo1::foo2::foo3::foo(x); 26*0a6a1f1dSLionel Sambuc } 27*0a6a1f1dSLionel Sambuc 28*0a6a1f1dSLionel Sambuc namespace bar1 { 29*0a6a1f1dSLionel Sambuc namespace bar2 { 30*0a6a1f1dSLionel Sambuc namespace bar3 { bar(int x)31*0a6a1f1dSLionel Sambuc int bar(int x) { return x; } 32*0a6a1f1dSLionel Sambuc } 33*0a6a1f1dSLionel Sambuc } 34*0a6a1f1dSLionel Sambuc } 35*0a6a1f1dSLionel Sambuc bar(int x)36*0a6a1f1dSLionel Sambucint bar(int x) { 37*0a6a1f1dSLionel Sambuc return bar1::bar2::bar3::bar(x); 38*0a6a1f1dSLionel Sambuc } 39