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1 // Origin: PR c++/46162
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2
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3 struct small_type { char dummy; };
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4 struct large_type { char dummy[2]; };
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5
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6 template<class T>
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7 struct has_foo_member_variable
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8 {
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9 template<int T::*> struct tester;
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10 template<class U> static small_type has_foo(tester<&U::foo> *);
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11 template<class U> static large_type has_foo(...);
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12 static const bool value = (sizeof(has_foo<T>(0)) == sizeof(small_type));
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13 };
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14
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15 struct A
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16 {
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17 static int foo()
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18 {
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19 return 0;
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20 }
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21 };
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22
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23 struct B
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24 {
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25 static int foo;
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26 };
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27
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28 void
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29 bar()
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30 {
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31 bool b = has_foo_member_variable<A>::value;
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32 }
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33
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