A loop running within another loop is referred to as a nested loop. The first loop is called the Outer loop and inside the loop is called the Inner loop. The inner loop executes the number of times define an outer loop.

This concept called commenting out and is the way to isolate some part of the code which scans possible reason for the error. Also, this concept helps to save time because if the code is not the reason for the issue it can simply uncomment.

#define my_sizeof(type) (char *)(&type+1)-(char*)(&type)  

Pointers are used for storing address of dynamically allocated arrays and for arrays which are passed as arguments to functions. In other contexts, arrays and pointer are two different things.   Array name gives address of first element of array. Array members are accessed using pointer… Read More »What is the difference between array and pointer?

The file contains the definitions and prototypes of the functions being used in the program are called a header file. It is also known as a library file. Example– The header file contains commands like printf and scanf is the stdio.h.

Some of the data types in C have special characteristic nature when a developer assigns value beyond the range of the data type. There will be no compiler error and the value change according to a cyclic order. This is called cyclic nature and char,… Read More »What is the explanation for the cyclic nature of data types in C?

‘==’ is the comparison operator which is used to compare the value or expression on the left-hand side with the value or expression on the right-hand side. ‘=’ is the assignment operator which is used to assign the value of the right-hand side to the… Read More »Describe the difference between = and == symbols in C programming?

l-value or location value refers to an expression that can be used on left side of assignment operator. For example in expression “a = 3”, a is l-value and 3 is r-value. l-values are of two types: “nonmodifiable l-value” represent a l-value that can not… Read More »What is l-value?

1) The expression ‘i++’ returns the old value and then increments i. The expression ++i increments the value and returns new value. 2) Precedence of postfix ++ is higher than that of prefix ++. 3) Associativity of postfix ++ is left to right and associativity… Read More »What is difference between i++ and ++i?

Uninitialized pointers in the C code are known as Wild Pointers. These are a point to some arbitrary memory location and can cause bad program behavior or program crash.