--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/g++.dg/expr/unary4.C Thu Oct 25 07:37:49 2018 +0900 @@ -0,0 +1,8 @@ +// PR c++/84940 +// { dg-additional-options -Wno-vla } + +void +foo (int x) +{ + struct {} a[1][x](-a[0]); // { dg-error "wrong type argument to unary minus" } +}