Programming Languages: Type Systems and Features
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Questions and Answers

Which of the following languages has a static type system?

  • C#
  • Haskell (correct)
  • C
  • Python

What is the primary characteristic of a static type system?

  • Types are determined at runtime
  • Macros are used for type declarations
  • Type parameters are used
  • Types are determined at compile time (correct)

In the C++ statement const double rate = 3.5;, when is the value of rate bound?

  • Runtime
  • Language design time
  • Link time
  • Compile time (correct)

What is the consequence of not deallocating memory in C after using malloc?

<p>Memory leak (B)</p> Signup and view all the answers

What is the equivalent feature in Haskell to a generator implemented using the yield keyword in C# or Python?

<p>Lazy lists (B)</p> Signup and view all the answers

What is the main reduction rule of the semantic of the λ-calculus?

<p>β-reduction (C)</p> Signup and view all the answers

What is the primary difference between the stack and the heap in terms of memory allocation?

<p>The stack is used for static memory allocation, while the heap is used for dynamic memory allocation. (C)</p> Signup and view all the answers

In the given C program, which of the following statements is true?

<p>The heap memory allocated in line 7 will be freed when the process terminates. (D)</p> Signup and view all the answers

What is the purpose of the free function in the given C program?

<p>To deallocate memory on the heap. (C)</p> Signup and view all the answers

What is the type of the head function in Haskell?

<p>head :: [a] -&gt; a (D)</p> Signup and view all the answers

What is the purpose of the yield return statement in the given C# generator?

<p>To return a value from the generator. (B)</p> Signup and view all the answers

How many times will the yield return statement be invoked when the following code is executed?

<p>7 (C)</p> Signup and view all the answers

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