Setting all elements of an array of pointers to nullptr in C++

Question

I am just wondering if there is a way of setting an initialized array of pointers to all null values without using a loop?

class Abc{
  //An array of 2000 Product pointers
  Product* product_[2000];
      public:
         Abc();
}

I want to set all pointers to null when the constructor is called:

Abc::Abc(){
    product_ = {};
}

This does not work, product_ must be a modifiable value. Is there an easier way than looping 2000 elements?

Thanks.

Answer 1

You may use:

class Abc{
  //An array of 2000 Product pointers
  Product* product_[2000];
      public:
         Abc() : product_{} {}
};

Answer 2

如果您使用std :: array，则默认情况下会将其初始化为nullptr。

std::array<Product *, 2000> product;

Answer 3

With Visual Studio compiler you can initialize the pointers to NULL in the initializer list like below-

class Abc{
  //An array of 2000 Product pointers
  Product* product_[2000];
      public:
         Abc():product_(){};
}