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> [Go] is like C in that you can fit the whole language in your head.

Go isn't like C in that you can actually fit the entire language in your head. Most of us who think we have fit C in our head will still stumble on endless cases where we didn't realize X was actually UB or whatever. I wonder how much C's reputation for simplicity is an artifact of its long proximity to C++?





30 years in C/C++ here.

Give an example of UB code that you have committed in real life, not from blogs. I am genuinely curious.

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All the memory safety vulnerabilities, which are the majority of bugs in most C/C++ projects?

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> Give an example of UB code that you have committed in real life

    struct foo {
        ...
        atomic_int v;
        ...
    };
    
    struct foo x;
    memset(&x, 0, sizeof(x));

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I don't think it's UB if you init the struct before using it atomically from multiple threads.

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