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C is not a general purpose language, it was always intended to be used by people who want performance and control. If you want to pass a potentially large array by value to a C function, it's likely that you're using the wrong language.

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That isn't what's proposed here, it's just passing the size with the pointer as one discrete type.

You're right, I was subconsciously replying to other comments about evils of passing parameters by reference.

What's large got to do with it? You can have a buffer overflow on a small array.

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