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# Q on complex assignment operators

Ranch Hand
Posts: 52
• • • • This question is from whizlabs practice exam.

Check this out:
int i=10, j=3, k=7;
int p=30;
p += k -= j <<= i %= 4
What are the values of i,j,k,p?

This is how I interpret it: From right to left
p += (k -= (j <<= (i %= 4)))
Is this right?
1) (i %= 4) evaluates to 2 so i=2
2) (j <<= (i %= 4)) how do u evaluate j?? What does the <<= operator do?
Thanks

Ranch Hand
Posts: 132
• • • • i %= 4 ==> 2
j<<= 2 ==> 12
k-=j ==> -5
p+=k ==> 25

Ranch Hand
Posts: 1272
• • • • p += (k -= (j <<= (i %= 4)))
Is this right?

yes

1) (i %= 4) evaluates to 2 so i=2

yes

2) (j <<= (i %= 4)) how do u evaluate j?? What does the <<= operator do?

shift the bits in j to the left i%4 places Life just hasn't been the same since the volcano erupted and now the air is full of tiny ads. Thread Boost feature https://coderanch.com/t/674455/Thread-Boost-feature