Nested Structures Initialisation – Computer Sir Ki Class


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Nested Structures Initialisation

Program to demonstrate the initialisation process of nested structures.

Source Code

TC++ #2934


Source Code

  Related (?) :

Run Output

Raju Verma, 40

Code Understanding

struct Name { char fname[40]; char lname[40];};
Structure with two char array for first name (fname) and last name (lname)of a Name.

struct Person { Name name; int age; };
A structure named Person with nested structure Name with the instance name as name and an additional variable age.

Person p1={{“Raju”,”Verma”},40};
Here is how this kind of nested structure is initialised. Notice the use of additional curly braces for the nested portion.  Remember that partial initialisation rules as specified in #2799 do apply on each structure.

cout<<<<” “<< <<“, “<<p1.age<<endl;
Here the nested structure is printed by accessing using the dot(.) operator one or more times as per nesting depth.


  • For partial initialisation of nested structures the omission of trailing values are allowed on each structure basis. For e.g.
    {{“Raju”,”Verma”}}; would be allowed, {40}; will not be allowed.
    {{“Raju”}}; would be allowed, {{“Verma”}}; will not be allowed.
    will also be allowed

Common Errors

  • Students are advised to count left curly braces and right curly braces to make a correct initialisation. They should be equal.

Suggested Filename(s): stru-nest-init.cpp,stru-ni.cpp


sunmitra| Created: 22-Jan-2018 | Updated: 22-Jan-2018|

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