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111
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1 // { dg-do assemble }
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2 // g++ 1.36.1 bug 900215_01
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3
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4 // g++ allows the definition of a type conversion operator `operator void'
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5 // for class types, but subsequently fails to generate calls (where needed)
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6 // for such type conversion operators.
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7
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8 // Cfront 2.0 does generate such calls.
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9
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10 // The following program exits with status 0 when compiled with Cfront 2.0
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11 // but exits with status 1 when compiled with g++.
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12
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13 // Cfront 2.0 passes this test.
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14
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15 // 4/27/94 (jason): The pre-San Diego working paper prohibits operator
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16 // void, so we can go back to just ignoring void values.
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17
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18 // keywords: user-defined type conversion operators, void type, explicit casts
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19
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20 // 8/3/2000 (nathan): The std allows you to define such an op, but
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21 // it will never be called. [class.conv.fct]. Make it an unconditional warning.
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22
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23 // { dg-options "-Wconversion" }
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24
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25 struct struct0 {
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26
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131
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27 operator void (); // { dg-warning "3:converting .struct0. to .void. will never use a type conversion operator" }
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111
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28 };
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29
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30 int exit_status = 1;
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31
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32 struct0::operator void ()
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33 {
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34 exit_status = 0;
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35 }
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36
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37 struct struct0 s0_object;
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38
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39 int test ()
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40 {
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41 (void) s0_object;
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42 return exit_status;
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43 }
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44
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45 int main () { return test (); }
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