Is true iff Map is map-like container, that is provides membership checking via the in operator or contains.
TODO Move to Phobos std.traits
union of associative array (via keys)
alias Map = string[int]; Map x = [0 : "a", 1 : "b"]; Map y = [2 : "c"]; Map c = [0 : "a", 1 : "b", 2 : "c"]; // test associativity assert(setUnionUpdate(x, y) == c); assert(setUnionUpdate(y, x) == c);
See Implementation
Is true iff Map is map-like container, that is provides membership checking via the in operator or contains.
TODO Move to Phobos std.traits