It would be nice if this generated a compiler warning

oops.cpp

#include <stdio.h>

enum Enumeration {
    ENUM = 0,
};

struct S final {
    explicit S(unsigned short id)
        : S(ENUM, value)
    { }

    S(Enumeration e, unsigned short id)
        : value((e << 24) | id)
    { }

    unsigned int value;
};

int main() {
    S s(1);
    printf("Value should be 1: %i\n", s.value);
    return 0;
}