Why are extern(C/C++) definitions and references mangled differently in separately compiled modules?
Max Samukha
maxsamukha at gmail.com
Fri Sep 6 15:09:22 UTC 2019
Consider the following two modules:
1. test.d:
module test;
import lib.a;
void main() {
foo();
}
2. lib/a.d:
module lib.a;
extern(C) void foo() {}
When compiled separately (dmd -c lib/a.d; dmd test.d a.o), the
function in 'a.o' is mangled as 'foo', but the reference in
'test.o' is mangled as '_D3lib1a3fooFZv', which leads to a link
error. I would expect both of them to be either plain C mangling,
or fully qualified D (better). What is the reason for current
behavior?
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