Control Structures & Operator

Expression

An expression is composed of one or more operations. The objects of the operations are referred to as operands. An expression in C++ is any valid combination of operators, constants, and variables.

Type of expressions

Arithmetic Expression

Arithmetic expression can either be integer expression or real expression, some times a mixed expression can also be formed with a mixture of real and integer expression.

Integer expression-

int a=10, b=3, c=4, d=213; . a+b, a*d etc

Real expression-

float x=1.20, y=23.63, z=23.23; . x+y, x*z etc.

Logical expression

The expression that result into 0 or 1 are called logical expression. The logical expression are the combination of constants, variable and logical and relational operator.

The following are the examples of valid logical expression:

. x>y, (-y), (x-y) etc.

C++ Escape Sequences

Escape sequences are character constants that are usually used to format text.

Here are the most common:

Common Escape Sequences

\a Bell

\b Backspace

\f Formfeed

\n New Line

\r Carriage Return

\t Horizontal Tab

\v Vertical Tab

\' Single quote

\" Double quote

\\ Backslash