C series for 1st sem students: Pointers in function calls

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C is a procedural language, which means it follows a series of steps/procedures in a systematic order to solve a problem. These procedures are often organized in functions. These functions take in some value(s) as argument(s), operate on them and return an output. But apart from this approach, a function can even change the state of other variables in the global scope, perform input/output operations etc.

loops in C

C series for 1st sem students: Conditionals and loops

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Today we are going to discuss about conditionals and loops in programming in general and the syntax of them in C. Conditional statements are those which check the validity of a statement, by implementing logical operations in the CPU and returns a true or false(1 or 0). In C language we do not have the boolean datatype or the values ‘true’ and ‘false’. Here 1 represents true and 0 false. In the hardware, a certain bit in a register (also called flag) is set or unset (a 1 or 0) after the logical operation is performed. This bit is then checked, and depending upon its value the subsequent lines of code are executed.