Have you ever worked with bits/stdc++.h? Could you explain to me this program? And why can't it be compiled?

Question

#include<bits/stdc++.h>
using namespace std;

struct node
{
string sourceIP;
string destinationIP;
string data;
struct node *next;
};

void searchPacket(struct node x)
{
if(x.sourceIP[0]=='0' && x.sourceIP[1]=='0' && x.sourceIP[2]=='0')
cout<<"Source IP is suspicious.";

if(x.destinationIP[0]=='0' && x.destinationIP[1]=='0' && x.destinationIP[2]=='0')
cout<<"Destination IP is suspicious.";

}

bool cyphertext(struct node x)
{
for(int i=0;i<8;i++)
x.data[i] -= 1;

if(strncmp(x.data,"JOHN JAY",8))
cout<<"The data contains JOHN JAY";
}

int main()
{
node abc[2][3];

for(int i=0;i<2;i++)
for(int j=0;j<3<j++)
{
cin>>abc[i][j].sourceIP;
cin>>abc[i][j].destinationIP;
cin>>abc[i][j].data;
if(j==2)
abc[i][j].next = NULL;
else
abc[i][j].next = abc[i][j+1];
}
return 0;
}

Answer 1

https://code.sololearn.com/co8vZnCO3bk4/?ref=app

take a look at this code. if you got any questions just comment on the code and Ill reply within seconds

Answer 2

I never use #include<bits/stdc++.h>
I didn't even know that existed
but I have used #include <bitset>

Answer 3

That header during compilation time will fetch all necessary header files required for the program .You don't have to include all necessary header files in your program.Instead bits/stdc++ does that work.

Answer 4

When i run the program, there is an issue with a header.

Answer 5

It depends on the type of compiler you are using .It works in Dev c++ but does not in the default compiler for Linux.Compiler dependent to be precise.