Print size of different data types using pointers
Write a C program to print size of different data types using pointers. Here’s C program to print size of different data types using pointers in C Programming Language.
What are Pointers?
A pointer is a variable whose value is the address of another variable, i.e., direct address of the memory location. Like any variable or constant, you must declare a pointer before using it to store any variable address.
The general form of a pointer variable declaration is −
- type *var-name;
Here, type is the pointer’s base type; it must be a valid C data type and var-name is the name of the pointer variable.
The asterisk * used to declare a pointer is the same asterisk used for multiplication. However, in this statement the asterisk is being used to designate a variable as a pointer.
The unary or monadic operator & gives the “address of a variable’”.
The indirection or dereference operator * gives the “contents of an object pointed to by a pointer”.
Below is the source code for C program to print size of different data types using pointers which is successfully compiled and run on Windows System to produce desired output as shown below :
SOURCE CODE : :
/* C program to print size of different data types using pointers */ #include <stdio.h> int main() { printf("Size of char pointer: %d\n" ,sizeof(char*)); printf("\nSize of int pointer: %d\n" ,sizeof(int*)); printf("\nSize of float pointer: %d\n" ,sizeof(float*)); printf("\nSize of long int pointer: %d\n" ,sizeof(long int*)); printf("\nSize of double pointer: %d\n" ,sizeof(double*)); return 0; }
Output : :
/* C program to print size of different data types using pointers */ Size of char pointer: 4 Size of int pointer: 4 Size of float pointer: 4 Size of long int pointer: 4 Size of double pointer: 4 Process returned 0
Above is the source code for C program to print size of different data types using pointers which is successfully compiled and run on Windows System.The Output of the program is shown above .
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