C is a procedural programming language. It was initially developed by Dennis Ritchie in the year 1972. It was mainly developed as a system programming language to write an operating system. The main features of C language include low-level access to memory, a simple set of keywords, and clean style, these features make C language suitable… Read More »
In this article, we are going to learn about the basic structure of a C program. A C program is divided into different sections. There are six main sections to a basic c program. The six sections are, Documentation Link Definition Global Declarations Main functions Subprograms So now that the introduction is out of the way, let… Read More »
You have seen the basic structure of a C program, so it will be easy to understand other basic building blocks of the C programming language. Tokens in C Tokens are the smallest elements of a program, which are meaningful to the compiler. The following are the types of tokens: Keywords, Identifiers, Constant, Strings, Operators, etc. printf(“Hello,… Read More »
Data types in c refer to an extensive system used for declaring variables or functions of different types. The type of a variable determines how much space it occupies in storage and how the bit pattern stored is interpreted. The types in C can be classified as follows − Sr.No. Types & Description 1 Basic… Read More »
Constants refer to fixed values that the program may not alter during its execution. These fixed values are also called literals. Constants can be of any of the basic data types like an integer constant, a floating constant, a character constant, or a string literal. There are enumeration constants as well. Constants are treated just like regular… Read More »
The naming of an address is known as a variable. Variable is the name of a memory location. Unlike constant, variables are changeable, we can change the value of a variable during the execution of a program. A programmer can choose a meaningful variable name. Example: average, height, age, total, etc. Variable Declaration: A typical variable… Read More »
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.… Read More »
The precedence of operators determines which operator is executed first if there is more than one operator in an expression. Let us consider an example: In C, the precedence of * is higher than – and =. Hence, 17 * 6 is evaluated first. Then the expression involving – is evaluated as the precedence of – is higher than that of =. Here’s a table of operators precedence from higher… Read More »
C Standard library functions or simply C Library functions are inbuilt functions in C programming. The prototype and data definitions of these functions are present in their respective header files. To use these functions we need to include the header file in our program. For example, If you want to use the printf() function, the header file <stdio.h> should… Read More »
Converting one datatype into another is known as type casting or, type-conversion. There are two types of type conversion: Implicit Type Conversion Also known as ‘automatic type conversion’. Done by the compiler on its own, without any external trigger from the user. Generally takes place when in an expression more than one data type is… Read More »