I understand that c++ variable initialization is extremely complicated and not all compilers 100% conform to the standard, if it's well defined in the first place. Therefore, I want to generate warnings in our whole codebase wherever a variable is not explicitly initialized.
Through my search, I came across these two flags: -Wmissing-field-initializers and -Wconditional-uninitialized, which look promising. So, I tried the following test code:
#include <iostream>
class Foo {
private:
int bar;
public:
Foo() {}
int Bar() { return bar; }
};
int main () {
Foo foo;
std::cout << foo.Bar();
return 0;
}
where Foo::bar is not initialized anywhere: it's not value initialized, the constructor is user defined and does not initialize bar. However, when I compiled it with clang++ -std=c++17 -Wmissing-field-initializers -Wmissing-field-initializers, I'm not getting any warnings.
What am I missing here? Thanks.
