Notice that the equal test (=) is different from the assignment operator (=) because it is one of the most common problems that a programmer faces by mixing them up. After that, the control will go outside of the block and program will be terminated with a successful result.Ĭ has six relational operators that can be used to formulate a Boolean expression for making a decision and testing conditions, which returns true or false : Thus it will print the statement inside the block of If.Since the value of num1 is smaller than num2, the condition will evaluate to true. We have used a relational expression in if construct. Then, we have used if with a test-expression to check which number is the smallest and which number is the largest.In the above program, we have initialized two variables with num1, num2 with value as 1, 2 respectively.The above program illustrates the use of if construct to check equality of two numbers. įollowing program illustrates the use of if construct in ‘C’ programming: #include Instructions can be a single instruction or a code block enclosed by curly braces. True is always a non-zero value, and false is a value that contains zero. The condition evaluates to either true or false. ![]() The syntax for if statement is as follows: The condition is evaluated first before executing any statement inside the body of If. If statement is always used with a condition. If statement is responsible for modifying the flow of execution of a program. It is one of the powerful conditional statement. It is also called as branching as a program decides which statement to execute based on the result of the evaluated condition. In ‘C’ programming conditional statements are possible with the help of the following two constructs: This process is called decision making in ‘C.’ If you put some condition for a block of statements, the execution flow may change based on the result evaluated by the condition. ![]() ![]() Conditional statements execute sequentially when there is no condition around the statements. Conditional Statements in C programming are used to make decisions based on the conditions.
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