Bug 2561 – Function return values cannot be used as "ref const" parameters

It seems that POD types cannot be directly used as "ref const" parameters when returned from a function. Only direct struct initializers work - if those can be considered as a function call. However, when using -inline and the called function is inlined, the code works as expected. The following code snippet will crash the compiler with: Internal error: ..\ztc\cod4.c 357 --- struct S {} S x(){ return S(); } void f(ref const S){} void g(){ f(x()); } --- When using a primitive data type, an error is generated instead: ?.d(4): function sxg.metrics.f (ref const const(int) _param_0) does not match parameter types (int) ?.d(4): Error: x() is not an lvalue --- alias int S; S x(){ return 0; } void f(ref const S){} void g(){ f(x()); } ---

Touches the same issue as the previous bug report #2560 *** This bug has been marked as a duplicate of 2560 ***