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Pre-increment and Post-increment concept in C/C++?
Increment operators are used to increase the value by one while decrement works opposite increment. Decrement operator decrease the value by one.
Pre-increment (++i) − Before assigning the value to the variable, the value is incremented by one.
Post-increment (i++) − After assigning the value to the variable, the value is incremented.
The following is the syntax of pre and post increment.
++variable_name; // Pre-increment variable_name++; // Post-increment
Here,
variable_name − Any name of the variable given by user.
Here is an example of pre and post increment in C++.
Example
#include <iostream>
using namespace std;
int main() {
int i = 5;
cout << "The pre-incremented value: " << i;
while(++i < 10 )
cout<<"\t"<<i;
cout << "\nThe post-incremented value: " << i;
while(i++ < 15 )
cout<<"\t"<<i;
return 0;
}Output
The pre-incremented value: 5 6 789 The post-incremented value: 10 1112131415
Updated on: 26-Jun-2020
10K+ Views
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