87 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify %s2// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s3// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s4 5namespace Ints {6 int zero = 0; // expected-note {{candidate found by name lookup is 'Ints::zero'}}7 void f(int); // expected-note 3 {{candidate function}}8 void g(int);9}10 11namespace Floats {12 float zero = 0.0f; // expected-note {{candidate found by name lookup is 'Floats::zero'}}13 void f(float); // expected-note 3 {{candidate function}}14 void g(float);15}16 17namespace Numbers {18 using namespace Ints;19 using namespace Floats;20}21 22void test() {23 int i = Ints::zero;24 Ints::f(i);25 26 float f = Floats::zero;27 Floats::f(f);28 29 double n = Numbers::zero; // expected-error {{reference to 'zero' is ambiguous}}30 Numbers::f(n); // expected-error{{call to 'f' is ambiguous}}31 Numbers::f(i);32 Numbers::f(f);33}34 35namespace Numbers {36 struct Number { // expected-note 2 {{candidate constructor (the implicit copy constructor) not viable}}37#if __cplusplus >= 201103L // C++11 or later38 // expected-note@-2 2 {{candidate constructor (the implicit move constructor) not viable}}39#endif40 41 explicit Number(double d) : d(d) {} // expected-note 2{{explicit constructor is not a candidate}}42 double d;43 };44 Number zero(0.0f);45 void g(Number); // expected-note 2{{passing argument to parameter here}}46}47 48void test2() {49 Numbers::Number n = Numbers::zero;50 Numbers::f(n); // expected-error {{no matching function for call to 'f'}}51 Numbers::g(n);52}53 54namespace Numbers2 {55 using Numbers::f;56 using Numbers::g;57}58 59void test3() {60 Numbers::Number n = Numbers::zero;61 Numbers2::f(n); // expected-error {{no matching function for call to 'f'}}62 Numbers2::g(n);63 64 int i = Ints::zero;65 Numbers2::f(i);66 Numbers2::g(i); // expected-error {{no viable conversion from 'int' to 'Number'}}67 68 float f = Floats::zero;69 Numbers2::f(f);70 Numbers2::g(f); // expected-error {{no viable conversion from 'float' to 'Number'}}71}72 73namespace inline_ns {74 int x; // expected-note 2{{found}}75 inline namespace A {76#if __cplusplus <= 199711L // C++03 or earlier77 // expected-warning@-2 {{inline namespaces are a C++11 feature}}78#endif79 80 int x; // expected-note 2{{found}}81 int y; // expected-note 2{{found}}82 }83 int y; // expected-note 2{{found}}84 int k1 = x + y; // expected-error 2{{ambiguous}}85 int k2 = inline_ns::x + inline_ns::y; // expected-error 2{{ambiguous}}86}87