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145
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1 /* PR c++/61339 - add mismatch between struct and class
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2 Test to verify that -Wredundant-tags is issued for references to class
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3 types that use the class-key even though they don't need to.
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4 { dg-do compile }
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5 { dg-options "-Wredundant-tags" } */
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6
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7 struct A;
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8
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9 extern A *pa;
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10 extern struct A *pa; // { dg-warning "redundant class-key 'struct' in reference to 'struct A'" }
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11
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12 extern A aa[];
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13 extern struct A aa[]; // { dg-warning "redundant class-key 'struct' in reference to 'struct A'" }
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14
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15 void func (A*);
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16 void func (struct A*); // { dg-warning "redundant class-key 'struct' in reference to 'struct A'" }
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17
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18 int A;
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19
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20 extern struct A *pa;
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21 extern struct A aa[];
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22 void func (struct A*);
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23
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24
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25 class B;
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26
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27 extern B *pb;
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28 extern class B *pb; // { dg-warning "redundant class-key 'class' in reference to 'class B'" }
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29
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30 extern B ab[];
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31 extern class B ab[]; // { dg-warning "redundant class-key 'class' in reference to 'class B'" }
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32
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33 void func (B*);
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34 void func (class B*); // { dg-warning "redundant class-key 'class' in reference to 'class B'" }
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35
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36 int B;
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37
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38 extern class B *pb;
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39 extern class B ab[];
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40 void func (class B*);
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41
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42
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43 enum C { c0 };
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44
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45 extern C *pc;
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46 extern enum C *pc; // { dg-warning "redundant enum-key 'enum' in reference to 'enum C'" }
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47
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48 extern C ac[];
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49 extern enum C ac[]; // { dg-warning "redundant enum-key 'enum' in reference to 'enum C'" }
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50
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51 void func (C*);
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52 void func (enum C*); // { dg-warning "redundant enum-key 'enum' in reference to 'enum C'" }
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53
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54 int C;
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55
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56 extern enum C *pc;
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57 extern enum C ac[];
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58 void func (enum C*);
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59
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60
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61 #if __cplusplus > 199711L
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62
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63 enum class D1 { d1 };
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64 enum struct D2 { d2 };
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65
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66 #else
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67
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68 enum D1 { d1 };
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69 enum D2 { d2 };
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70
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71 #endif
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72
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73 extern D1 *pd1;
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74 extern D2 *pd2;
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75 extern enum D1 *pd1; // { dg-warning "redundant enum-key 'enum' in reference to 'enum class D1'" "C++ 11 and above" { target c++11 } }
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76 // { dg-warning "redundant enum-key 'enum' in reference to 'enum D1'" "C++ 98" { target c++98_only } .-1 }
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77
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78 extern enum D2 *pd2; // { dg-warning "redundant enum-key 'enum' in reference to 'enum class D2'" "C++ 11 and above" { target c++11 } }
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79 // { dg-warning "redundant enum-key 'enum' in reference to 'enum D2'" "C++ 98" { target c++98_only } .-1 }
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80
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81 extern D1 ad1[];
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82 extern D2 ad2[];
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83
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84 #if __cplusplus > 199711L
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85 extern enum class D1 ad1[]; // { dg-warning "redundant enum-key 'enum class' in reference to 'enum class D1'" "C++ 11 and above" { target c++11 } }
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86 // { dg-warning "elaborated-type-specifier for a scoped enum must not use the 'class' keyword" "C++ 11 and above" { target c++11 } .-1 }
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87 /* The pretty printer cannot differentiate between enum class and enum struct
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88 because the C++ front-end doesn't encode it so allow for both in the text
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89 of the warning below. */
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90 extern enum struct D2 ad2[]; // { dg-warning "redundant enum-key 'enum struct' in reference to 'enum \(class|struct\) D2'" "C++ 11 and above" { target c++11 } }
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91 // { dg-warning "elaborated-type-specifier for a scoped enum must not use the 'struct' keyword" "C++ 11 and above" { target c++11 } .-1 }
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92 #else
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93 extern enum D1 ad1[]; // { dg-warning "redundant enum-key 'enum' in reference to 'enum D1'" "C++ 98" { target c++98_only } }
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94 #endif
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95
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96 void func (D1*);
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97 void func (enum D1*); // { dg-warning "redundant enum-key 'enum' in reference to 'enum " }
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98
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99 void func (D2*);
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100 void func (enum D2*); // { dg-warning "redundant enum-key 'enum' in reference to 'enum " }
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101
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102 int D1, D2;
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103
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104 extern enum D1 *pd1;
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105 extern enum D1 ad1[];
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106 void func (enum D1*);
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107
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108 extern enum D2 *pd2;
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109 extern enum D2 ad2[];
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110 void func (enum D2*);
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111
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112
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113 union U;
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114
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115 extern U *pu;
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116 extern union U *pu; // { dg-warning "redundant class-key 'union' in reference to 'union U'" }
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117
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118 extern U au[];
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119 extern union U au[]; // { dg-warning "redundant class-key 'union' in reference to 'union U'" }
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120
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121 void func (U*);
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122 void func (union U*); // { dg-warning "redundant class-key 'union' in reference to 'union U'" }
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123
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124 int U;
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125
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126 extern union U *pu;
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127 extern union U au[];
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128 void func (union U*);
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