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SuperUser What is Constant Qualifier in C? Constant qualifier is used to declare a variable as contant. If we dont want a variable to change its value then we can use constant qualifier to make that variable to hold a value throughout the program. Constant changes behavoior of a variable making it not to be modified. … Read more
If you are searching for loops in c then you are at the right blog post. Loops in c: Programming languages provide control structure which makes the programmer to run a block of code for n number of times are until a specific condition is met. Consider example if you want to sum numbers up … Read more
What is an Array ? Arrays in c programming language is set of elements of same data type. Array is stored in continuous storage space. If you dont know about arrays then check out datatypes in c article to know basics of an array. C Arrays starts with index 0. Arrays provide random access to … Read more
This post explains you about Input output in c programming language. Note: In this article we are not discussing anything about file io and its functions. Input Output in c Input refers to inputting data to the computer. It can be achieved through various input devices. For a typical c program we can input through … Read more
Introduction c/c++ Development Environment Setup is required to write, compile, run the executable generated of a c/c++ program we need application software (IDE) and compilers as well. In this tutorial you will be able to install Visual Studio Code IDE and required plugins and gcc and g++ compiler. Before installing IDE and setting up development … Read more
After reading putchar in c post you will be ready to use putchar function in proper manner. What is putchar in c programming language? putchar in c writes a single character (unsigned char type) to standard output device. putchar is a function used to perform output operation of a single byte. It is part of … Read more
What is isxdigit in c programming? isxdigit in c checks the passed character is hexadecimal digit or not. This function is defined in ctype.h header file. This function returns non-zero digit if passed character is hexadecimal value otherwise zero. Prototype Parameter This function takes character as input parameter and converts it into ASCII value. Return … Read more
What is isascii in c programming? isascii in c checks the passed value is ascii character or not. This function is defined in ctype.h header file. This function returns non-zero digit if passed value is ascii character otherwise zero. Prototype Parmeter This function takes character as input parameter and converts it into ASCII value. Return … Read more
What is union in C? Union in c is user-defined data type that stores different type of elements. At once only one member can occupy memory. Thus the size of a union at any given time is equal to the size of its largest element. Syntax Example In the above example, student is union type … Read more
What is putenv() in c? putenv in c is a c standard function used to change the environmental variable value. It is defined in stdlib.h header file. Prototype Return value It returns 0 on success -1 on error. putenv in c program example Output Code explanation The putenv() changes the environment variable value. People also … Read more