https://issues.dlang.org/show_bug.cgi?id=22547
Issue ID: 22547
Summary: .dup on array of nested structs can cause null
dereference if copy throws
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P1
Component: druntime
Assignee: [email protected]
Reporter: [email protected]
As pointed out by @kinke here:
https://forum.dlang.org/post/[email protected]
void main() {
int i;
struct S {
// A copy ctor won't currently compile (dmd 2.098)
// due to "cannot access stack frame pointer..."
this(this) { throw new Exception("!!!"); }
~this() { ++i; }
}
auto a1 = [ S() ];
auto a2 = a1.dup; // throws
} // segmentation fault when destructing a2 because a2[0].tupleof[$-1] is null
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