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Kriston Introduction “Hello World! C Program” can be easily written in c programming language using printf function which prints characters on to terminal. For using printf first we have to include stdio header file using #include preprocessor. Then we can call printf function passing “Hello World!” to print. Before we begin our first C program, let … Read more
Scope rules in C programming refers to the accessibility or validity of a variable within a certain region of a program. Otherwise, you can say in general as it is a lifetime of a variable at a given point in a program. Types of scope in C Local scope Global scope File scope Local Scope … Read more
Literals in c are fixed values whose values cannot be changed during the execution of a program. Literal contains memory but no reference to it. There are four types of literals in C programming, they are as follows: Integer literal Float literal Character literal String literal Integer literal Integer literal represent only integer values. It … Read more
What is a Function? Function is the group of statements which performs specific task. The above add() function is written to perform addition operation. What is Call by value? In Call by value actual parameters are being passed to a function by caller function. If values are being changed in the callee function while executing … Read more
What are the Header Files? Header files in C language offers numerous libraries that include predefined functions to make programming easier. By using C predefined directive ‘#include’, programmers can use the functions defined in the header file. All the header files have ‘.h’ extension. The default header file that comes with the C compiler is … Read more
What are the tokens in c language? Tokens are the smallest elements used to build a program in c. Tokens can be classified into six types. They are as follows: Keywords Constants Identifier strings Special symbols Operaters Let us see one by one. Keywords Keywords are also known as “Reserved words”. They have special meaning … Read more
History of C Programming The base of programming languages began in 1960. It was ‘ALGOL’. This ALGOL was used in European countries. In 1967 a new computer programming language called ‘BCPL’ was announced. Which was developed by Martin Richards. C is the result of the development process of early language called BCPL. BCPL influenced the … Read more
C Programming Basics to Write a Simple C Program C programming basics is all about creating a c file, writing a c program, compiling it and then getting the output. For that we have to know basic things. You should know some basic building blocks of c program they are: Element Explanation #include<stdio.h> Include is … Read more
What is abort in c Programming? abort function in c abnormally terminates the program. This function may not closes the files that are opened by the currently executing the program. It raises SIGABRT signal to terminate the process. It indicates the unsuccessful termination of a program. This function is defined in stdlib.h header file. Prototype … Read more
What is system() in c programming? system function in c is used to run Shell commands which cannot be directly executed by the c program. This function is defined in stdlib.h header file. Prototype Return value It returns status of the command or -1 on error. Example program for system() in c Output Code explanation … Read more