https://issues.dlang.org/show_bug.cgi?id=19919
Issue ID: 19919
Summary: Incorrect initialization of union when first member
isn't marked = void
Product: D
Version: D2
Hardware: x86
OS: Windows
Status: NEW
Severity: normal
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
unittest {
union U {
int n;
float f = 3.14f;
}
U u;
assert(u.f == 3.14f);
}
The above assert should pass, as U has exactly one explicit initializer.
Instead, the value of u.f is 0.0, because int.init is used instead. Another
option is that the above should fail to compile with an 'overlapping default
initialization' error.
If n is void-initialized, f is correctly set to 3.14f. If n is a type with an
initalizer other than 0, the initial value changes. (if n's initializer is
1078523331, the assert passes)
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