https://issues.dlang.org/show_bug.cgi?id=17716
Issue ID: 17716 Summary: wrong result of IsExpression when not in static assert Product: D Version: D2 Hardware: All OS: All Status: NEW Severity: normal Priority: P1 Component: dmd Assignee: nob...@puremagic.com Reporter: ag0ae...@gmail.com ---- struct S { shared int* foo; int* bar; } static assert(!is(shared S : S)); /* passes */ pragma(msg, is(shared S : S)); /* "true" */ static if (is(shared S : S)) { static assert(false); /* is triggered */ } ---- The `static assert` is correct. The `pragma(msg, ...);` should print "false": The body of the `static if` should not be entered. Also happens with other qualifiers (const, immutable). Depends on the order of the struct fields. When the unqualified fields comes first, everything works as expected. --