![]() 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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