Help me with this code.

Question

#include <iostream>
#include <cstdio>
using namespace std;
int main() {
char str[80];
char token[80];

char *p;
char * q;

cout << "enter a sentence: ";
gets(str);

p = str;// address of str to p
while(*p)
{
q = token;// address of token to q
while(*p != ' ' && *p)//explain this
{
*q = *p;//values of p to q
q++; p++;
}
if(*p) p++;
*q = '\0'; //explain this
cout << token << endl;
}
}
https://code.sololearn.com/cfj22PS4v4n3/?ref=app
https://code.sololearn.com/cfj22PS4v4n3/?ref=app

Answer 1

*q = '\0' it dont look like condition i dont get it.

Answer 2

While(*p != ' ' && *p)
//what about this.
//help.

Answer 3

If you don't add then you may get garbage values and or infinite loop... It is about saying end of string value to compiler..

Answer 4

That mean the value in *p is not a space and a valid value (not null)...