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16
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1 /* PR c/66322 */
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2 /* { dg-do compile } */
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3
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4 #ifndef __cplusplus
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5 # define bool _Bool
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6 # define true 1
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7 # define false 0
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8 #endif
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9
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10 void
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11 nowarn (bool b)
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12 {
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13 switch (b)
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14 ;
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15
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16 switch (b)
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17 {
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18 case true:
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19 case false:
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20 break;
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21 }
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22
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23 switch (b)
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24 {
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25 case true:
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26 break;
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27 }
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28
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29 switch (b)
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30 {
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31 case true:
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32 default:
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33 break;
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34 }
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35
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36 switch (b)
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37 {
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38 case false:
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39 break;
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40 }
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41
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42 switch (b)
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43 {
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44 case false:
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45 default:
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46 break;
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47 }
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48
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49 switch (b)
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50 {
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51 default:
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52 break;
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53 }
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54
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55 switch (b)
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56 {
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57 case false ... true:
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58 break;
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59 }
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60
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61 switch (b)
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62 {
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63 case 1:
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64 switch (b)
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65 {
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66 case true:
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67 default:
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68 break;
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69 }
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70 default:
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71 break;
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72 }
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73 }
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74
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75 void
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76 warn (bool b)
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77 {
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78 switch (b) /* { dg-warning "switch condition has" } */
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79 {
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80 case true:
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81 case false:
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82 default:
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83 break;
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84 }
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85
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86 switch (b) /* { dg-warning "switch condition has" } */
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87 {
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88 case false ... true:
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89 default:
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90 break;
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91 }
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92 }
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93
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94 void
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95 warn2 (int n)
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96 {
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97 switch (n == 2) /* { dg-warning "switch condition has" } */
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98 {
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99 case 0 ... 2: /* { dg-warning "upper value" "" { target c++ } } */
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100 default:
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101 break;
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102 }
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103
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104 switch (n == 2) /* { dg-warning "switch condition has" } */
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105 {
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106 case 1 ... 10: /* { dg-warning "upper value" "" { target c++ } } */
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107 default:
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108 break;
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109 }
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110
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111 switch (n == 2) /* { dg-warning "switch condition has" } */
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112 {
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113 case 2: /* { dg-warning "case label" "" { target c++ } } */
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114 break;
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115 }
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116
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117 switch (n == 2) /* { dg-warning "switch condition has" } */
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118 {
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119 case 0:
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120 case 1:
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121 case -1: /* { dg-warning "case label" "" { target c++ } } */
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122 break;
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123 }
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124
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125 switch (n == 2) /* { dg-warning "switch condition has" } */
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126 {
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127 case -1 ... 1: /* { dg-warning "lower value" "" { target c++ } } */
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128 break;
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129 }
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130
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131 switch (n == 2) /* { dg-warning "switch condition has" } */
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132 {
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133 case -1 ... 0: /* { dg-warning "lower value" "" { target c++ } } */
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134 default:
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135 break;
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136 }
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137
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138 switch (n == 2) /* { dg-warning "switch condition has" } */
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139 {
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140 case -10 ... -1: /* { dg-warning "case label" "" { target c++ } } */
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141 default:
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142 break;
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143 }
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144 }
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