July 27, 2019 [Issue 20088] New: void[] cast unusable in betterC due to new __ArrayCast template | ||||
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https://issues.dlang.org/show_bug.cgi?id=20088 Issue ID: 20088 Summary: void[] cast unusable in betterC due to new __ArrayCast template Product: D Version: D2 Hardware: All OS: All Status: NEW Severity: blocker Priority: P1 Component: druntime Assignee: nobody@puremagic.com Reporter: mail@skoppe.eu --- struct S { int i; } extern(C) int main() { S[2] s = [S(1),S(2)]; void[] v = cast(void[])s; S[] p = cast(S[])v; // cast of void[] to S[] triggers __ArrayCast template function return 0; } --- /dlang/dmd/linux/bin64/../../src/druntime/import/object.d:4847: error: undefined reference to '_D4core8internal6string17TempStringNoAlloc3getMFNaNbNiNjNfZAa' __ArrayCast is a templated function that drags in TempStringNoAlloc.get which isn't available in betterC. The example is silly but casts from void[] happen a lot in allocator code. -- |
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