Function ismemory

lib/library.h:131–133

is allocation type memory? */

    /** is allocation type memory? */
    static bool ismemory(const int id) {
        return ((id > 0) && ((id & 1) == 0));
    }
    static bool ismemory(const AllocFunc* const func) {
        return func && (func->groupId > 0) && ((func->groupId & 1) == 0);
    }