a) <any>
b) <fucntional>
c) <functor>
d) <function>
1 thought on “Which of the following header file is required to use in-bulit functors of C++?”
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a) <any>
b) <fucntional>
c) <functor>
d) <function>
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b
Explanation: header file is required to use the fuctionality of in-built functors provided by C++.