Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 1 | // No PCH: |
| 2 | // RUN: %clang_cc1 -pedantic -std=c++1y -include %s -include %s -verify %s -DNONPCH |
| 3 | // RUN: %clang_cc1 -pedantic -std=c++1y -include %s -include %s -verify %s -DNONPCH -DERROR |
| 4 | // |
| 5 | // With PCH: |
| 6 | // RUN: %clang_cc1 -pedantic -std=c++1y -emit-pch %s -o %t.a -DHEADER1 |
| 7 | // RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t.a -emit-pch %s -o %t.b -DHEADER2 |
| 8 | // RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t.b -verify %s -DHEADERUSE |
| 9 | |
| 10 | #ifndef ERROR |
| 11 | // expected-no-diagnostics |
| 12 | #endif |
| 13 | |
| 14 | #ifdef NONPCH |
| 15 | #if !defined(HEADER1) |
| 16 | #define HEADER1 |
| 17 | #undef HEADER2 |
| 18 | #undef HEADERUSE |
| 19 | #elif !defined(HEADER2) |
| 20 | #define HEADER2 |
| 21 | #undef HEADERUSE |
| 22 | #else |
| 23 | #define HEADERUSE |
| 24 | #undef HEADER1 |
| 25 | #undef HEADER2 |
| 26 | #endif |
| 27 | #endif |
| 28 | |
| 29 | |
| 30 | // *** HEADER1: First header file |
| 31 | #if defined(HEADER1) && !defined(HEADER2) && !defined(HEADERUSE) |
| 32 | |
| 33 | template<typename T> T var0a = T(); |
| 34 | template<typename T> extern T var0b; |
| 35 | |
| 36 | namespace join { |
| 37 | template<typename T> T va = T(100); |
| 38 | template<typename T> extern T vb; |
| 39 | |
| 40 | namespace diff_types { |
| 41 | #ifdef ERROR |
| 42 | template<typename T> extern float err0; |
| 43 | template<typename T> extern T err1; |
| 44 | #endif |
| 45 | template<typename T> extern T def; |
| 46 | } |
| 47 | |
| 48 | } |
| 49 | |
| 50 | namespace spec { |
| 51 | template<typename T> constexpr T va = T(10); |
| 52 | template<> constexpr float va<float> = 1.5; |
| 53 | template constexpr int va<int>; |
| 54 | |
| 55 | template<typename T> T vb = T(); |
| 56 | template<> constexpr float vb<float> = 1.5; |
| 57 | |
| 58 | template<typename T> T vc = T(); |
| 59 | |
| 60 | template<typename T> constexpr T vd = T(10); |
Richard Smith | ecbce69 | 2013-09-24 04:49:23 +0000 | [diff] [blame] | 61 | template<typename T> T* vd<T*> = new T(); |
Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 62 | } |
| 63 | |
| 64 | namespace spec_join1 { |
| 65 | template<typename T> T va = T(10); |
| 66 | template<> extern float va<float>; |
| 67 | extern template int va<int>; |
| 68 | |
| 69 | template<typename T> T vb = T(10); |
| 70 | template<> extern float vb<float>; |
| 71 | |
| 72 | template<typename T> T vc = T(10); |
| 73 | |
| 74 | template<typename T> T vd = T(10); |
Richard Smith | ecbce69 | 2013-09-24 04:49:23 +0000 | [diff] [blame] | 75 | template<typename T> extern T* vd<T*>; |
Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 76 | } |
| 77 | |
| 78 | #endif |
| 79 | |
| 80 | |
| 81 | // *** HEADER2: Second header file -- including HEADER1 |
| 82 | #if defined(HEADER2) && !defined(HEADERUSE) |
| 83 | |
| 84 | namespace join { |
| 85 | template<typename T> extern T va; |
| 86 | template<> constexpr float va<float> = 2.5; |
| 87 | |
| 88 | template<typename T> T vb = T(100); |
| 89 | |
| 90 | namespace diff_types { |
| 91 | #ifdef ERROR |
| 92 | template<typename T> extern T err0; // expected-error {{redefinition of 'err0' with a different type: 'T' vs 'float'}} // expected-note@42 {{previous definition is here}} |
| 93 | template<typename T> extern float err1; // expected-error {{redefinition of 'err1' with a different type: 'float' vs 'T'}} // expected-note@43 {{previous definition is here}} |
| 94 | #endif |
| 95 | template<typename T> extern T def; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | namespace spec_join1 { |
| 100 | template<typename T> extern T va; |
| 101 | template<> float va<float> = 1.5; |
| 102 | extern template int va<int>; |
| 103 | |
| 104 | template<> float vb<float> = 1.5; |
| 105 | template int vb<int>; |
| 106 | |
| 107 | template<> float vc<float> = 1.5; |
| 108 | template int vc<int>; |
| 109 | |
| 110 | template<typename T> extern T vd; |
Richard Smith | ecbce69 | 2013-09-24 04:49:23 +0000 | [diff] [blame] | 111 | template<typename T> T* vd<T*> = new T(); |
Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | #endif |
| 115 | |
| 116 | // *** HEADERUSE: File using both header files -- including HEADER2 |
| 117 | #ifdef HEADERUSE |
| 118 | |
| 119 | template int var0a<int>; |
| 120 | float fvara = var0a<float>; |
| 121 | |
| 122 | template<typename T> extern T var0a; |
| 123 | |
| 124 | template<typename T> T var0b = T(); |
| 125 | template int var0b<int>; |
| 126 | float fvarb = var0b<float>; |
| 127 | |
| 128 | namespace join { |
| 129 | template const int va<const int>; |
| 130 | template<> const int va<int> = 50; |
| 131 | static_assert(va<float> == 2.5, ""); |
| 132 | static_assert(va<int> == 50, ""); |
| 133 | |
| 134 | template<> constexpr float vb<float> = 2.5; |
| 135 | template const int vb<const int>; |
| 136 | static_assert(vb<float> == 2.5, ""); |
| 137 | static_assert(vb<const int> == 100, ""); |
| 138 | |
| 139 | namespace diff_types { |
| 140 | template<typename T> T def = T(); |
| 141 | } |
| 142 | |
| 143 | } |
| 144 | |
| 145 | namespace spec { |
| 146 | static_assert(va<float> == 1.5, ""); |
| 147 | static_assert(va<int> == 10, ""); |
| 148 | |
Richard Smith | ecbce69 | 2013-09-24 04:49:23 +0000 | [diff] [blame] | 149 | template<typename T> T* vb<T*> = new T(); |
| 150 | int* intpb = vb<int*>; |
Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 151 | static_assert(vb<float> == 1.5, ""); |
| 152 | |
Richard Smith | ecbce69 | 2013-09-24 04:49:23 +0000 | [diff] [blame] | 153 | template<typename T> T* vc<T*> = new T(); |
Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 154 | template<> constexpr float vc<float> = 1.5; |
Richard Smith | ecbce69 | 2013-09-24 04:49:23 +0000 | [diff] [blame] | 155 | int* intpc = vc<int*>; |
Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 156 | static_assert(vc<float> == 1.5, ""); |
| 157 | |
Richard Smith | ecbce69 | 2013-09-24 04:49:23 +0000 | [diff] [blame] | 158 | char* intpd = vd<char*>; |
Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 159 | } |
| 160 | |
| 161 | namespace spec_join1 { |
| 162 | template int va<int>; |
| 163 | int a = va<int>; |
| 164 | |
| 165 | template<typename T> extern T vb; |
| 166 | int b = vb<int>; |
| 167 | |
Richard Smith | ecbce69 | 2013-09-24 04:49:23 +0000 | [diff] [blame] | 168 | int* intpb = vd<int*>; |
Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 169 | } |
| 170 | |
Larisse Voufo | 439d665 | 2013-08-13 02:02:26 +0000 | [diff] [blame] | 171 | #endif |