https://issues.dlang.org/show_bug.cgi?id=16538
Issue ID: 16538 Summary: Parameter head-const-ness shouldn't matter but does Product: D Version: D2 Hardware: x86_64 OS: Linux Status: NEW Severity: enhancement Priority: P1 Component: dmd Assignee: nob...@puremagic.com Reporter: e...@weka.io const(int) retConst1(); int retConst2(); auto retConst = [&retConst1, &retConst2]; // Compiles! const(int*) retConstPtr1(); const(int)* retConstPtr2(); auto retConstPtr = [&retConstPtr1, &retConstPtr2]; // Compiles! void constArray1(const(int)[1]); void constArray2(const(int[1])); auto constArray = [&constArray1, &constArray2]; // Compiles! const(int)[] retConstSlice1(); const(int[]) retConstSlice2(); auto retConstSlice = [&retConstSlice1, &retConstSlice2]; // Compiles! void constSlice1(const(int)[]); void constSlice2(const(int[])); auto constSlice = [&constSlice1, &constSlice2]; // Errors: Incompatible types! void ptrToConst1(const(int)*); void ptrToConst2(const(int*)); auto ptrToConst = [&ptrToConst1, &ptrToConst2]; // Errors: Incompatible types! --