Bug 523 – I think this is a GC bug

I think that this is a bug in gc/compiler char [] foo() { char [10] arr = "hello, wor"; return arr[0..4]; // or return arr; } void main() { printf(foo()); } doesn`t work - it prints some rubbish, so, as i guess, arr is collected when function 'foo' returns. if I use char [] instead of char[10] all works fine.

char[10] arr; allocates arr on the stack. Returning a pointer to the stack will result in corrupted data. char[] arr = "string"; will make arr a reference to the static data literal "string", which is in the static data segment and so remains valid when the function exits. Not a compiler or gc bug.