What does || mean in c++

|| is the logical OR operator in C and is used to concatenate two boolean values. It evaluates to true if bool_expression1 is true, evaluates bool_expression2 if bool_expression1 is false, and returns true if it is true, otherwise false. Has lower priority than &&. Often used to combine Boolean expressions, check that at least one condition is met, and simplify nested if statements.

C Medium || Operator

What is this? The

|| operator is the logical OR operator in C.

How to use it?

|| operator is used to connect two Boolean values ​​in a Boolean expression. Its syntax is as follows:

<code>bool_expression1 || bool_expression2</code>

where bool_expression1 and bool_expression2 are expressions that will evaluate to Boolean values.

how to work?

|| operator evaluates the result according to the following rules:

• If bool_expression1 is true, the result is true regardless of bool_expression2 What is the value of .
• If bool_expression1 is false, the operator evaluates bool_expression2. If bool_expression2 is true, the result is true; otherwise, it is false.

Example

<code class="cpp">bool isRaining = false;
bool isCold = true;

if (isRaining || isCold) {
  cout << "Stay indoors" << endl;
}</code>

In the above example, even though isRaining is false, the if condition is still true because isCold is true.

Precedence

|| operator has lower precedence than the && operator (logical AND). This means that the && operator is evaluated first in the expression, and then the || operator is evaluated.

Common uses

|| Operators are commonly used to:

• Combining multiple Boolean expressions to form more complex conditions.
• Check whether at least one condition is met.
• Simplify nested if statements.

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