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// PERMUTE_ARGS:
// https://github.com/dlang/dmd/pull/5860
int[] bar() @safe;
void foo(int[] a) @safe
{
static int[] as;
bool b;
b = a.ptr == null;
b = null == (*&as).ptr;
b = bar().ptr == null;
b = a.ptr != null;
b = null != (*&as).ptr;
b = bar().ptr != null;
b = a.ptr is null;
b = null is (*&as).ptr;
b = bar().ptr is null;
b = a.ptr !is null;
b = null !is (*&as).ptr;
b = bar().ptr !is null;
b = !a.ptr;
b = !(*&as).ptr;
b = !bar().ptr;
b = cast(bool)a.ptr;
b = cast(bool)(*&as).ptr;
b = cast(bool)bar().ptr;
b = a.ptr ? false : true;
b = a.ptr < null;
b = null < a.ptr;
b = a.ptr && null || a.ptr;
if (a.ptr)
b = true;
while (a.ptr)
b = true;
for (; a.ptr;)
b = true;
// ptrdiff_t d = a.ptr - a.ptr;
}
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