gcc-4.9/gcc/testsuite/g++.dg/ext/is_base_of_incomplete-2.C


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struct T;

int check1[__is_base_of(T, T) ? 1 : -1];
int check2[__is_base_of(T, const T) ? 1 : -1];
int check3[__is_base_of(volatile T, T) ? 1 : -1];