copy chars to string
auto c = [ 'a', 'b', 'c', '\0', 'd', 'e' ]; assertEq( toDString( c.ptr ), "abc" );
char[6] c = [ 'a', 'b', 'c', '\0', 'd', 'e' ]; assertEq( toDStringFix(c), "abc" );
See Implementation
copy chars to string