Finding Valid Multiple value assignments – Computer Sir Ki Class

Login

Lost your password?
Don't have an account ?
Register (It's FREE) ×
  

Login
[lwa]


Solved Problem #CPP#5573    siteicon   siteicon  

Problem Statement - Finding Valid Multiple value assignments

Which of the following statements is/are valid and why.
int x;

(i)  x=1,024;

(ii) x=(1,024);

 

Solution

TC++ #5573

Both the statements are valid.

int x; x=1,024; cout<<x<<endl;

This one is a case where declaration has already been done previously. Here we are only assigning values. Since assignment will have higher precedence from comma so x will be assigned as 1 here. Value 024 (Octal 24) will just act as stray expressions and will not have any impact.

x=(1,024); cout<<x<<endl
This assignment will work as parentheses will be evaluated first. Then assignment will happen by evaluating each term from left to right. Since the expressions inside brackets are separated by commas the last one will be assigned to x. Since last one is 024 which is a way to write Octal values in c++ so decimal version of Octal 24 which is 20 will be printed.

 

Notes


Suggested Filename(s): assignmu.cpp, assign-multiple.cpp
Share

CSKC| Created: 19-Dec-2018 | Updated: 19-Dec-2018|

Post Views: 412








Post Containing Topic(s)

Operators


Concept Notes and Resources

Code Learning Sheet(s)
More...
Solved Problem(s)
Practice Problem(s)
Quiz(s)
×
Topic Lists
Introductory Sessions Beginning to Program Tokens Keyword and Identifiers Data Types Variables and Constants Operators Simple User Input Building Expressions and Formulas Simple Real World Problems Simple If and If Else Multiple-Nested-Ladder of If Else Switch case selection Simple Loops Tricks in Loops - break continue scope Loop Applications - Handling numerals Series printing loops Nested Loops Pattern printing loops Number Varieties and Crunches String Handling (Null Terminated) Strings - string class type Functions (Built-in) Functions - user defined Functions Reference Passing/Returning Arrays Concepts and 1-D Arrays Array Data Management Two dimensional arrays and Matrices Structures Basics Structures passing/returning 2D Array Memory Addressing Display Using IO Manipulation Display Using C Formatting Tricks User Defined Data Types Enumerated Types Preprocessor Directives And Macros Exception Handling Programming Paradigms and OOPs Advantages Abstraction and Encapsulation Polymorphism Inheritance Function Overloading Concepts Function Overloading Varieties Function Overloading Special Cases Defining Classes Creating and Using Class Objects Class Members Accessibility Class Function Types Inline Functions Constant Functions Nesting of Functions Class Members Scope Resolution Static Members in a Class Array of Objects Constructor Concepts Default Constructor Parameterized Constructor Copy Constructor Constructor Overloading Destructors Inheritance Fundamentals Public Derivations Private and Protected Derivations Multiple Inheritance Multi-Level Inheritance Class Nesting Data File Concepts Handling Text Files Handling Binary Files Pointer Concepts Pointer and Arrays Pointers and Functions Object Pointers This Pointer Linked Lists Stacks Queues


Back
×