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多次元vecマクロを作る #10

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@Kyo-s-s
template<class T> using vec = vector<T>;
template<class T> using vec2 = vec<vec<T>>;
template<class T> using vec3 = vec<vec2<T>>;
template<class T> using vec4 = vec<vec3<T>>;
template<class T> using vec5 = vec<vec4<T>>;
template<class T> using vec6 = vec<vec5<T>>;

template<class T> vec2<T> make_vec2(int a, int b, T init = T()) {
    return vec(a, vec(b, init));
}
template<class T> vec3<T> make_vec3(int a, int b, int c, T init = T()) {
    return vec(a, make_vec2<T>(b, c, init));
}
template<class T> vec4<T> make_vec4(int a, int b, int c, int d, T init = T()) {
    return vec(a, make_vec3<T>(b, c, d, init));
}
template<class T> vec5<T> make_vec5(int a, int b, int c, int d, int e, T init = T()) {
    return vec(a, make_vec4<T>(b, c, d, e, init));
}
template<class T> vec6<T> make_vec6(int a, int b, int c, int d, int e, int f, T init = T()) {
    return vec(a, make_vec5<T>(b, c, d, e, f, init));
}

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