What happens when a variable is not initialized in main function?
When a variable is not initialized in main function it contains garbage value. This can be well seen from the example below
C
What is the default return value of a function?
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 ...
Base Address of the String
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...
How to define command line arguments
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...
How to develop compile and run a C program
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
Importance of Header Files
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...
What are the Format Specifiers used with printf?
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...
exit and return statements
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.
What are the limitations with switch statement?
Switch statement is a powerful statement used to handle many alternatives and provides good presentation for C program. But there are some limitations with switch statement which are given below
sizeof Operator
What is sizeof operator? sizeof will return the number of bytes reserved for a variable or data type. The sizeof operator is a compile-time operator that returns an integer value. In other words sinc...