What does i++ in c++ mean?

The "i" postfix increment operator in C increases the value of variable i by 1. It accesses the value of i, increments it by 1, and then stores the result back to i. Unlike the prefix increment operator "i", the postfix increment operator first accesses the value of i and then increments it.

i in C

In C, "i" is a suffix increment operator, used To increase the value of variable i by 1.

How to use

Syntax:

<code class="cpp">i++;</code>

Where:

• i is the variable to be incremented

Function

The "i" operator performs the following operations:

1. Accesses the current value of variable i.
2. Increase its value by 1.
3. Store the result back into variable i.

Differences from other operators

There is another increment operator "i" in C, which is called the prefix increment operator. The difference between it and "i" is:

• Prefix increment (i): First increment the value of i, and then access the result.
• Suffix increment (i): First access the value of i, and then increment its value.

Example

The following code example shows how to use the "i" operator:

<code class="cpp">int main() {
  int i = 5;
  
  i++; // i 的值现在为 6
  
  return 0;
}</code>

Output:

<code>6</code>

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