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Afaq Ahmad Khan

while loop in C Language

A while loop in C programming repeatedly executes a target statement as long as a given condition is true. Syntax The syntax of a while loop in C programming language is − while(condition) { statement(s); } Here, statement(s) may be a single statement or a block of statements. The condition may be any expression, and […]

Loops in C Language

You may encounter situations, when a block of code needs to be executed several number of times. In general, statements are executed sequentially: The first statement in a function is executed first, followed by the second, and so on. Programming languages provide various control structures that allow for more complicated execution paths. A loop statement […]

switch statement in C Language

A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case. Syntax The syntax for a switch statement in C programming language is as follows − switch(expression) { case constant-expression : statement(s); […]

if statement in C Language

An if statement consists of a Boolean expression followed by one or more statements. Syntax The syntax of an ‘if’ statement in C programming language is − if(boolean_expression) { /* statement(s) will execute if the boolean expression is true */ } If the Boolean expression evaluates to true, then the block of code inside the […]

Control Statements in C Language

Decision making structures require that the programmer specifies one or more conditions to be evaluated or tested by the program, along with a statement or statements to be executed if the condition is determined to be true, and optionally, other statements to be executed if the condition is determined to be false. Show below is […]

Operator precedence and associativity in C Language

Operators Precedence in C Operator precedence determines the grouping of terms in an expression and decides how an expression is evaluated. Certain operators have higher precedence than others; for example, the multiplication operator has a higher precedence than the addition operator. For example, x = 7 + 3 * 2; here, x is assigned 13, […]

Type conversion in C Language

Type casting is a way to convert a variable from one data type to another data type. For example, if you want to store a ‘long’ value into a simple integer then you can type cast ‘long’ to ‘int’. You can convert the values from one type to another explicitly using the cast operator as […]

Operators in C Language

An operator is a symbol that tells the compiler to perform specific mathematical or logical functions. C language is rich in built-in operators and provides the following types of operators − Arithmetic Operators Relational Operators Logical Operators Bitwise Operators Assignment Operators Misc Operators We will, in this chapter, look into the way each operator works. […]

Storage classes in C Language

A storage class defines the scope (visibility) and life-time of variables and/or functions within a C Program. They precede the type that they modify. We have four different storage classes in a C program − auto register static extern The auto Storage Class The auto storage class is the default storage class for all local […]

Variables and memory locations in C Language

A variable is nothing but a name given to a storage area that our programs can manipulate. Each variable in C has a specific type, which determines the size and layout of the variable’s memory; the range of values that can be stored within that memory; and the set of operations that can be applied […]

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