Home  >  Article  >  Backend Development  >  in c++? What is it?

in c++? What is it?

下次还敢
下次还敢Original
2024-04-22 17:36:14574browse

The conditional operator (? :) in C is a ternary operator that performs different operations based on a condition. The syntax is: condition ? true_expression : false_expression, where condition is a Boolean expression, true_expression is executed when condition is true, and false_expression is executed when condition is false. The three expressions of the conditional operator must be of the same type, have higher precedence than the binary operator but lower than the unary operator, and can be nested.

in c++? What is it?

Conditional Operator in C

What is a conditional operator?

The conditional operator (? :) is a ternary operator in C that is used to perform different operations based on a condition.

Syntax:

<code>condition ? true_expression : false_expression;</code>

Where:

  • condition is a Boolean expression that determines which expression to execute Mode.
  • true_expression is the expression that is executed when condition is true.
  • false_expression is the expression that is executed when condition is false.

How it works:

The conditional operator first evaluates condition. If condition is true, then true_expression is executed and its result returns a value. If condition is false, then false_expression is executed and its result returns a value.

Example:

<code class="cpp">int max(int a, int b) {
  return a > b ? a : b;
}</code>

This function returns the larger value based on the larger of two integers a and b.

<code class="cpp">int x = 5;
int y = x > 3 ? x * x : x + 1;</code>

This code block assigns the square of x to y if x is greater than 3, otherwise x 1 is assigned to y.

Note:

  • The three expressions of the conditional operator must all be of the same type.
  • Conditional operators have higher precedence than binary operators, but lower than unary operators.
  • Conditional operators can be nested.

The above is the detailed content of in c++? What is it?. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn