Is this a compiler error in updating MSVC ++ 2017 3

Question

#include <vector>

std::vector<int>::iterator foo();
void bar(void*) {}

int main()
{
    void* p;
    while (foo() != foo() && (p = 0, true))
    {
        bar(p);
    }
    return 0;
}

Error results:

c: \ users \ jessepepper \ source \ repos \ testcode \ consoleapplication1 \ consoleapplication1.cpp (15): error C4703: potentially uninitialized local pointer variable 'p' is used

Answer 1

This is a kind of error, but very typical of the type of code you write.

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Answer 2

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