If you have gone through our previous tutorials you might have understood the importance of C language. What are header files? When you have bugs in your program, rather than scratching your head to find the bug, you can use debugger to stop program at any point and find the value of variables to detect the bug.
I made hello. This book is clear and comprehensive. Once you understand it, modify the code, make it different and run it again. Most compilers issue a warning if there is more than one such pair, though. Unions[ edit ] Unions in C are related to structures and are defined as objects that may hold at different times objects of different types and sizes.
The size of a union is equal to the size of its largest component type. C programs are compiled using C compilers and displays output when executed.
C is the lingua franca of programming.