Why doesnt the code call default constructor?

#1

I try to create a new node within a function but it throws up an error because i do not pass an argument, while the other calls where i pass an argument calls my constructor.
Why isnt the default constructor getting called?

#2

hi the cb ide is undergoing mantainance please share ur code on some other ide just now ✓
nothing is visible in the file u shared

#3

updated code now considers the case for 0 but still all but one cases show wrong answer. i’ll wait till ide is available https://ide.codingblocks.com/s/198384

#4

sorry this reply wasnt meant for this doubt. Consider the previous code only

#5

https://ide.codingblocks.com/s/198390 here. I have re-uploaded it. I want to know why the default constructor does not get called

#6

Here https://ide.codingblocks.com/s/198793 the ide is working now

#7

since u havent defined a default constructor
in case u define a paramterized constructor, the compiler does not provide a default constructor , under that circumstance u need to declare a default constructor

so simply define a

node(){
next = NULL;
data = what ever dummy value u want to assign
}

#8

but in the tutorial i’ve seen that a default constructor gets called even when i declare a parameterised constructor

#9

no not possible it is against the c++ fundamental
either tell me the point in the video where default constructor is called without being defined

#10

ok got it. Found it in the video

1 Like
#11

the link does not have code

#12

https://ide.codingblocks.com/s/200329 This code checks if a LL is a palindrome. The problem with this code was that i did not assign any value to ‘copy’ in line 124. So i want to know what is the difference if i declare the node as (node* copy) and as (node copy)

#13

@tusharnitharwal node copy will create a simple object of node named copy (like we create variable of any other datatype). But node * copy creates a pointer of type node whose name is copy.
I would request you to please raise doubt in the section which you found difficulty instead of reopening old doubts.
If this resolves your doubt mark it as resolved.

#14

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