The if...else statement is used to run one block of code under certain conditions and another block of code under different conditions. In this tutorial, we will learn C++ if, if…else and nested if…else with the help of examples.

Jun 23, 2014 · It returns "true" on the first mismatch. Operators in both C and C++ "short-circuit". That is, an OR operator will not evaluate its right side when its left side returned true. The AND operator will not evaluate its right side if its left side returned false.

Feb 2, 2024 · In C++, logical operators && (logical “and”) and || (logical “or”) are powerful tools for handling multiple conditions within if statements. This article explores different techniques for implementing if statements with multiple conditions in C++ …

Jun 2, 2013 · Now I want to implement the following if statements using bitwise operators. if (test1) output = a; else if (test2) output = b; else if (test3) output = c; else output = d; The values of test1 , test2 , test3 are either 0 or 1 .

C++ has the following conditional statements: Use if to specify a block of code to be executed, if a specified condition is true; Use else to specify a block of code to be executed, if the same condition is false; Use else if to specify a new condition to test, if the first condition is false

Mar 16, 2010 · For example, in C++ you will often see something like: if (pX!=null && pX->predicate()) { bla bla bla } If you changed the order of the conditions, you could be invoking a method on a null pointer and crashing.

Apr 2, 2025 · Operator precedence and associativity are rules that decide the order in which parts of an expression are calculated. Precedence tells us which operators should be evaluated first, while associativity determines the direction (left to right or right to …

Oct 18, 2024 · Used where code needs to be executed based on a condition, or whether the if statement is evaluated in a manifestly constant-evaluated context (since C++23).

Feb 14, 2025 · The conditional operator (?:) (also sometimes called the arithmetic if operator) is a ternary operator (an operator that takes 3 operands). Because it has historically been C++’s only ternary operator, it’s also sometimes referred to as “the ternary operator”.

Mar 19, 2024 · In C++, the ternary or conditional operator ( ? : ) is the shortest form of writing conditional statements. It can be used as an inline conditional statement in place of if-else to execute some conditional code.