PTHREAD_MUTEX_INITIALIZER inside C++ member function cannot compile?

Question

class A {
    public:
        A();
    private:
        pthread_mutex_t mu;
};

A::A()
{
    mu = PTHREAD_MUTEX_INITIALIZER;  //cannot compile
}

Ca

Answer 1

Use pthread_mutex_init in this case, as the constant is for compile-time initialization.