- 作业标题：CSCI 3137 - Assignment 1: Variable Models
- 课程名称：Dalhouse University CSCI 3137 Principles of Programming Languages
- 完成周期：3天
Question 1: Variable Models and Pointers
C has pointers, Java does not. I claim that if C did not have pointers, this would severely limit the types of things one can do in C, whereas Java has no such limitation.
Provide an example of a data structure that can be implemented in Java and in C, but which would not be implementable in C if C did not have pointers.
Explain why this data structure would not be implementable without the use of pointers in C and why we can implement this data structure in Java even though Java does not have pointers.
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Question 2: Runtime Implications of Variable Models
In class, I claimed that part of the reason why performance-oriented languages, such as C, C++, and Rust, use a value model of variables is that this often leads to faster code. In reality, things are a bit more complicated. Consider the following operations on a large array
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Submission
Assignments are due by 11:59 PM on the due date. Assignments must be submitted electronically via Brightspace. Only a single PDF is accepted. You can do your work on paper and then scan it and submit the scanned. If at all possible, scan your assignment instead of taking a photo. The result will be more readable. If you do need to take a photo, ensure proper lighting and that the camera is properly focused. If the marker cannot read your work, you don’t earn any marks. Even if you take a photo or photos, it is your responsibility to convert the photos to a single PDF with the pages in the correct order.
