how to initialize an empty integer array in c++

Question

how to put NULL or empty value to an integer array?

struct book{
char name;
char aut;
int det[10];
};
book bk[40];

here i want every book data type to have there det arrays have value zero for every det[] member.

Answer 1

I think you mean how to zero-initialize an integer array.:)

You can define the array like

int det[10] = {};

or

int det[10] = { 0 };

You may use such a declaration in a structure.

If the array is already defined then you can use memset. For example

#include <cstring>

//...

std::memset( det, 0, sizeof( det ) );