C++ - Arithmetic Operators

Overview

Estimated time: 20–30 minutes

Perform math using arithmetic operators and understand integer division vs floating division.

Learning Objectives

• Use + - * / % correctly with ints and doubles.
• Understand prefix vs postfix increment.

Prerequisites

• C++ - Operators (Overview)

Examples

int a=7/2;   // 3
double b=7.0/2; // 3.5
int x=0; int y = x++; // y=0, x=1

Common Pitfalls

• Integer division truncation; cast to double for floating.