When constructing an std::scoped_lock, the constructor arguments are used to list the mutexes that the scoped_lock will
lock on the creation and unlock on destruction. It is possible to construct a scoped_lock without any parameter, but in that case, it
does absolutely nothing and is just dead code, which was probably not the intent of the user.
Noncompliant code example
void f1(std::mutex &m) {
std::scoped_lock lock; // Noncompliant
// Do some work
}
Compliant solution
void f1(std::mutex &m) {
std::scoped_lock lock {m}; // Compliant
// Do some work
}
template<class... D>
void processAll(D &...data) {
scoped_lock lock {data.getMutex()...}; // Compliant, even if the list might be empty in some cases
// Do some work
}
