how do i use fill_n() on the following array?

Question

I have this array

 unsigned char        bit_table_[10][100];

What is the right way to fill it with 0. I tried

std::fill_n(bit_table_,sizeof(bit_table_),0x00);

but vc 2010 flags it as error.

Answer 1

On initialization:

unsigned char bit_table_[10][100] = {};

If it's a class member, you can initialize it in the constructor, like this:

MyClass::MyClass()
    :bit_table_()
{}

Otherwise:

std::fill_n(*bit_table_,sizeof(bit_table_),0);