What is the meaning of ++b

Answer 1

case1)
int a=++b;
//it mean value of b increases by 1 & a=b+1;

case2)
b=++b;
//it means value of b increased by 1
//but if b++ here , then no increment

Answer 2

Pre-increment. Increase 'b' by one and operate.

Answer 3

it counts the integer b + 1

Answer 4

i had problem with the following code
a=2;
b=3;
b=a++;
cout<<++b;

Answer 5

@Varun

When in doubt, create logs in your code to see values.

https://code.sololearn.com/ceiEl4h4gKy5/#cpp

#include <iostream>
using namespace std;

int main() {
int a=2;
int b=3;

// Display our initial values.
cout << "Variable a = " << a << "\n";
cout << "Variable b = " << b << "\n";

b=a++;
cout << "b = a++ is equal to " << b << "\n";

// Because a++ is post-increment, it increases AFTER we assigned the value to 'b'
cout << "Afterward 'b' is equal to " << b << endl;
cout << "Afterward 'a' is equal to " << a << endl;

// In this case, we increase the value of b BEFORE we assign it, so we get 3.
cout << "Pre-increment 'b' variable to get " << ++b << "\n";
cout << "End result for b: " << b << endl;
return 0;
}

::: OUTPUT :::

Variable a = 2
Variable b = 3
b = a++ is equal to 2
Afterward 'b' is equal to 2
Afterward 'a' is equal to 3
Pre-increment 'b' variable to get 3
End result for b: 3

Answer 6

Hi dude !
It's means that before using the variable's value the Compiler increase the value by one

Answer 7

The solution of about problem is that
In 3rd line b=a++ means the value of a++ goes into b so now the value of b is 2 and when while cout before read the variable by Compiler it increases by 1 so the net value is 3

The confusion may be in a++ =2
It is because in starting the value of a is 2 and that value goes to b now if we use 'a' further so we have to put the value of a =3

Answer 8

Brother first read the whole conversation and then give your views

Answer 9

It means the value of b increases by 1.It is pre-increment.

Answer 10

increment

Answer 11

++b is preincrement operator. Actually it first increments a given value,then the incremented value is assigned to the variable

Answer 12

anyone hacker here?

Answer 13

prefix increment operator