• 1 Post
  • 46 Comments
Joined 1 年前
Cake day: 2025年6月30日
  • TheMightyCat@ani.socialtoProgrammer Humor@programming.dev•Anon died on the "clang format bad" hill
    31·
    12 天前

    It was a simplified example.

    B and C can’t share any other attributes without duplication of code

    struct A {
    [[nodiscard]] virtual std::uint32_t DoSomething() = 0;
};

struct B : A {
    std::uint32_t DoSomething() override { 
        return 0;
    }
};

int main() {
    B b;
    b.DoSomething(); //no warning
}

    even if you use virtual attributes aren’t inherited.

    If you ment members instead of attributes this is unrelated to virtual:

    struct A {
    std::uint32_t a;
};


struct B : A {
    void DoSomething() { 
        std::println("B"); 
    }
};

struct C : A {
    void DoSomething() { 
        std::println("C"); 
    }
};

    Now the member is shared and it works fine and there is no virtual.

    There’s also no strict enforcement of inheritance.

    True, but neither is there when just using virtual:

    struct A {
    virtual void DoSomething() = 0;
};

struct B : A {

};

    This compiles fine if final is not added.

    Not that its an issue as reflection has solved this problem:

    consteval std::string_view HasMethods(std::meta::info impl, std::meta::info iface) {
    constexpr auto ctx = std::meta::access_context::unchecked();
    for (auto fn : members_of(iface, ctx)) {
        if (!is_function(fn) || is_special_member_function(fn)) continue;
        bool found = false;
        for (auto cand : members_of(impl, ctx))
            if (is_function(cand) && has_identifier(cand) && identifier_of(cand) == identifier_of(fn) && type_of(cand) == type_of(fn))
                found = true;
        if (!found)
            return std::define_static_string(std::string(identifier_of(impl)) + " is missing " + display_string_of(fn));
    }
    return {};
}


struct A {
    void DoSomething();
};

struct B  {

};
static_assert(HasMethods(^^B, ^^A).empty(), HasMethods(^^B, ^^A));

// g++ -std=c++26 -freflection main.cpp
// main.cpp:30:41: error: static assertion failed: B is missing void A::DoSomething()
// 30 | static_assert(HasMethods(^^B, ^^A).empty(), HasMethods(^^B, ^^A));

    Now you get the strict enforcement of inheritance and no virtual.

  • TheMightyCat@ani.socialtoProgrammer Humor@programming.dev•Anon died on the "clang format bad" hill
    41·
    12 天前

    Why does it make zero sense in C++?

    edit: simplified example of what i mean

    struct A {
    virtual void DoSomething() = 0;
};

struct B : A {
    void DoSomething() override { 
        std::println("B"); 
    }
};

struct C : A {
    void DoSomething() override { 
        std::println("C"); 
    }
};

void InvokeDoSomething(A* a) {
    a->DoSomething();
}

    vs

    struct B {
    void DoSomething() { 
        std::println("B"); 
    }
};

struct C {
    void DoSomething() { 
        std::println("C"); 
    }
};

template <typename T>
void InvokeDoSomething(T* t) {
    t->DoSomething();
}
  • TheMightyCat@ani.socialOPtoSelfhosted@lemmy.world•Selfhosting payment processingEnglish
    10·
    3 个月前

    This is what they sent me:

    Waarom is mijn account gesloten?

    Op basis van onze beoordeling hebben we vastgesteld dat je onderneming een risiconiveau heeft dat buiten onze acceptatiecriteria valt. Zoals beschreven in artikel 4.1 van onze Gebruikersovereenkomst kan Mollie haar diensten weigeren of beëindigen wanneer een onderneming niet voldoet aan onze risicovereisten.

    Translation:

    Why has my account been closed?

    Based on our assessment, we have determined that your business presents a level of risk that falls outside our acceptance criteria. As set out in clause 4.1 of our User Agreement, Mollie may refuse or terminate its services if a business does not meet our risk requirements.

    I guess they are referring to this paragraph in 4.1:

    Mollie may also decide, at its own discretion, to decline products and services that are not explicitly mentioned on the list, but which pose an unacceptable risk to Mollie based on its internal policies.

    But I have no idea why i am considered unacceptable risk?

  • TheMightyCat@ani.socialOPtoSelfhosted@lemmy.world•Selfhosting payment processingEnglish
    9·
    3 个月前

    Supposedly i am violating this article:

    SECTION 4: YOUR OBLIGATIONS

    Article 4.1 Prohibited Activities

    You must only accept payments and process them through Mollie’s Payment Module for the lawful sale and provision of legal products and services according to the Organisation’s country of establishment, the Customer’s country and the Netherlands. There are certain categories of Organisations and activities for which the Payment Services cannot be used. Most of these categories are imposed by the Financial Institutions and Intermediaries and applicable Scheme Rules used by Mollie to process Transactions. Mollie keeps a list of prohibited activities. Mollie has made the full list of prohibited activities, products and services available on its website. Mollie can, at any time and without prior notice, change this list, and remove or add activities or services. Mollie may also decide, at its own discretion, to decline products and services that are not explicitly mentioned on the list, but which pose an unacceptable risk to Mollie based on its internal policies.

    By registering with Mollie, you confirm that you will not use our services for activities other than those approved during registration or explicitly approved by Mollie afterwards. If Mollie thinks or suspects that you are nevertheless accepting payments for prohibited activities as referred to in this Agreement, you must cease these prohibited activities immediately at Mollie’s request. If you do not cease the prohibited activities within the period set by Mollie, Mollie reserves the right to suspend your Account and/or terminate this Agreement with immediate effect. In case of doubt, you should contact Mollie Support for further information. If Mollie determines that your activities pose a risk to it that cannot be remedied, Mollie reserves the right to terminate this Agreement with immediate effect and without prior notice for such activities. Any Fines imposed by an Intermediary in relation to a breach of this section are payable by the Organisation.

    This is my shop

    https://catcrafts.net/shop

    Im not even selling anything at the moment, and even if i was linux phones aren’t illegal?

    At first i tought donations were prohibited but they are allowed?

    https://help.mollie.com/hc/nl/articles/115000632489-Kan-ik-Mollie-gebruiken-om-giften-te-ontvangen

    This is the list of prohibited activities:

    https://help.mollie.com/hc/en-us/articles/115000939369-Which-products-and-services-does-Mollie-not-accept

    I can only think that they banned me under “Hacking or cracking tools” because they found the word “flashed” scary sounding.