When a variable is not initialized in main function it contains garbage value. This can be well seen from the example below

The default return value from a function is int. In other words, unless explicitly specified the default return value by compiler would be integer value from function. When a programmer wants other ...

Headers can be called by using extern C Syntax of extern C is: extern "C" function declaration for example to call C functions from C++ we can write

The declaration of main can be done as int main() One more declaration that can be taken by main is command line arguments form int main(int argc, char *argv[])

What happens when we try to change the value of base address of the string? The base address of the sting takes a special place in the context of strings. This is because suing this base address onl...

The main functions can have in it arguments passed which are called as command line arguments. The command line arguments are two in number which are namely: Argument count denoted by argc and Argume...

The steps involved in building a C program are: 1. First program is created by using any text editor and the file is stored with extension as .c

What is the importance of header files? The main role of header file is it is used to share information among various files. In brief, if we have several functions say 4 functions named as f1, f2, f...

There are several format specifiers available in printf. The format specifier used varies depending on the data type used for printing. The given below are some of the format specifiers used with pri...

How does the exit () and return () differ exit () is used to exit the program as a whole. In other words it returns control to the operating system.