typedef for arrays – Computer Sir Ki Class

Login


Lost your password?

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

Login
[lwa]



Code Learning #CPP#4506    siteicon   siteicon  

typedef for arrays

understanding how typedef includes array size also while defining type

Learning Objectives

  • Use of typedef to define arrays where the size is also stored.

Source Code

TC++ #4506

Source Code

Run Output

Array Sum = 30

Code Understanding

typedef char arr[5];
Here typedef will not only define array of  type char but array size will also be fixed for 5 members.

int main(){

arr a={1,2,3,4,5};
Here we do not need to define array size as it is prebuilt in type arr. If I initialise more than five members compiler will give error.

int sum=0; for(int i=0;i<5;i++) sum+=a[i];
cout<<“Array Sum = “<<sum<<endl;
Code to print array sum.

return 0;}

Common Errors

  • If array size is already stored in typedef then defining it again will not be correct.
    arr a[6]={1,2,3,4,5,6};  //This will return a compilation error


Suggested Filename(s): tdofarr.cpp, typedefofarray.cpp



Share

sunmitra| Created: 27-Aug-2018 | Updated: 27-Aug-2018|









×
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