C Tutorial

C Tutorial C Language Environment Setup Execution flow of C program C printf and Scanf C Data type C Token Variable in C Operators in C Comments in C Escape Sequence in C C – Storage Classes C Decision control statement Loop Statement in C Break, continue and goto statement in C Type Casting in C Function in C Recursion in C String in C C Array Pointer in C Dynamic memory allocation C –Structure Nested Structure in C Union in C File Handling in C C pre-processor Static Function In C Sizeof In C Selection Sort In C Scope Of Variables In C Runtime Vs Compile Time In C Random Access Lseek In C Queue Implementation In C Pseudo Code In C Prototype In C Pointer To Pointer In C Pointer Arithmetic In C Passing Array To Function In C Null Character In C Merge Sort In C Macros In C Library Functions In C Memory Leak In C Int In C Goto And Labels In C Fibonacci Series In C Fflush In C Derived Data Types In C Data Types In C Const Vs Volatile In C Character Set In C Character Class Tests In C Calloc In C C Pointers Arrays In C Include In C Clrscr In C C Vs Java String Literals In C Types Of Pointers In C Variables In C Volatile In C Why C Is A Middle Level Language Infix To Postfix Program In C Ceil function in C LCM of two numbers in C Quick sort in C Static in C function pointer as argument in C Top Array Keywords in C Add two numbers using the function in C Armstrong program in C using function Array, Declaring Arrays and Array Initialization Limitations of Inline Function in C Merge and Merge sort with example in C Do-While Loop in C For Loop in C While-Loop in C Difference between while and do-while loop in C Array Of Structures in C Data Structures And Algorithms in C Types Of Structures In C How to Avoid Structure Padding in C Use of Structure in C Do WHILE LOOP in C Programming Examples For Loop in C Programming Examples Entry Control Loop in C Exit control loop in C Infinite loop in C Nested loop in C pow() function in C String Handling functions in C Prime Number code in C Factorial Program in C using For Loop Factorial Program in C Using While Loop Fibonacci Series in C Using For Loop Fibonacci series in C using while loop Prime Number Program in C using for Loop While Loop in C programming examples Built-in functions in C Assert() Function C vs Java Strings Call Back Function in Embedded C Else If Ladder fgets() function Ftell() Function getc() function getch() function gets() function Heap Sort Nested if-else statement Pi() Function Positioning of file Write() function abs() function in C Attributes in C C program to find factorial of a number using Recursion Ferror() in c fopen() function in C Fibonacci series program in C using Recursion Formatted Input and output function in C Snake Game in C User Defined Functions in C Beep() function in C Cbrt() function in C Hook() function in C Isalnum() function in C C Program to find the Roots of a Quadratic Equation C Switch Statements Difference between rand() and srand() function in C Difference between while and for loop in C Doubly Linked list in C Example of Iteration in C How to use atoi() function in C How to use floor() function in C How to use sine() function in C How to use Typedef Struct in C Integer Promotions in C C Program Swap Numbers in cyclic order Using Call by Reference C Program to Find Largest Number Using Dynamic Memory Allocation C Program to Find the Largest Number using Ternary Operator C/C++ Program to Find the Size of int, float, double and char Find the Largest Three Distinct Elements in an Array using C/C++ Loop Questions in C Modulus on Negative Numbers in C Multiplication table program in C using For loop Nested Loops in C Programming Examples C Program for Mean and Median of an Unsorted Array Results of Comparison Operations in C and C++ Reverse a Stack using Recursion in C Simple hash() function in C strcat() Function in C Sum of N numbers in C using For loop Use of free() function in C Write a program that produces different results in C and C++ C Function Argument and Return Values Keywords in C Bank management system in C Calendar application in C Floor() Function in C Free() Function in C How to delete a file in C How to move a text in C Remove an element from an array in C Unformatted input() and output() function in C What are linker and loader in C

Results of Comparison Operations in C and C++

In this tutorial, we will explore comparison operators and how the system should compare an incoming value supplied as a context parameter to a given value or range of values. A nested expression can be used to supply the test parameter in addition to a context parameter. Make use of the sizeof() function to compare the results of operations performed in C and C++.

What is sizeof() Function:

The Sizeof() operator in C/C++ is a machine-dependent characteristic that varies from compiler to compiler. It might be referred to as byte-specific functionality. By providing the variables' byte and size as well as the number of bytes they occupy, it helps with the memory allocation of variables. Only the precise size of a variable type may be ascertained using the sizeof() method in C/C++ programming. Because of its flexibility and versatility, it is very helpful in the implementation and development of portable programs.

What are Comparison Operations?

Comparison operations define how the system should evaluate an incoming value provided as a context parameter against a specified value or value range. The test parameter can be provided via a nested expression in addition to being supplied by a context parameter.

Let's look at a few C and C++ examples to better grasp the contrasting outcomes of comparison operations in C and C++.

C Program:

In the C programming language, the ultimate outcome of comparison operations has the data type int. Consider the instance that follows.

#include<stdio.h>
int main ()
{
// Declaring and initializing two variables
    int i = 30, j = 22;
    printf ( "%d \n", sizeof ( i == j ) );
    printf ( "%d \n", sizeof ( i < j ) );
    return 0;
}

Output:

4
4

Statement: The result is presented as 4 in C because the result of comparison operations uses an int data type (the size of Integer).

C++ Program:

The outcome of comparison operations in C++ is of the data type bool. Consider the instance that follows.

#include<iostream>
using namespace std;
int main ()
{
// Declaring and initializing two variables
    int i = 30, j = 22;
    cout << sizeof ( i > j ) << "\n";
    cout << sizeof ( i == j );
    return 0;
}

Output:

1
1

Statement: The outcome of comparison operations in C++ has a boolean data type, hence the result is presented as 1. (the size of boolean).

Why are Comparison Operations outcomes different in C and C++?

In C, the outcome of a comparison operation possesses int data type, while in C++, the outcome of a comparison operation possesses bool data type.

Conclusion

We have covered the outcomes of comparison operations in C and C++ in great detail in this tutorial. The article describes how comparison operators' results can vary in C and C++.



ADVERTISEMENT
ADVERTISEMENT