Is there a difference between int a 10 and int a 10?

Simple: int *a[10] is an array of integer pointers. int (*a)[10] is pointer to an array of integers.

What is difference between int * a and int * A?

It’s just what you prefer to use, both are integer type arrays. There is no difference in functionality between both styles of declaration. Both declare array of int. But int[] a keeps type information together and is more verbose so I prefer it.

How many bytes will malloc 10 allocate?

When malloc is called, this will allocate at least sizeof(int) * 10 bytes of dynamic storage for your program.

What is the difference between calloc and malloc?

malloc() and calloc() functions are used for dynamic memory allocation in the C programming language. The main difference between the malloc() and calloc() is that calloc() always requires two arguments and malloc() requires only one.

What is the difference between int *i and int **i in C?

int *i is declaring a pointer to an int. So i stores a memory address, and C is expecting the contents of that memory address to contain an int. int **i is declaring a pointer to… a pointer.

What is the size of a malloc statement?

On most modern computers, an address is a 64-bit value, which can be represented in 8 bytes of memory — but computers differ, and different computers may return different sizes. So malloc () may return 8 bytes of data, in (void *) format.

What is the meaning of int a [10]?

The int a [10] indicates creation of an array with size 10 (i.e )max no of values that can be entered is 10 .

What is the difference between int* p() and *P()?

int* p (): Here “p” is a function that has no arguments and returns an integer pointer. Below is the program to illustrate the use of int* p (): int (*p) (): Here “p” is a function pointer which can store the address of a function taking no arguments and returning an integer. *p is the function and ‘ p ‘ is a pointer.