1 Safety and Liveness; Exceptions Christine Rizkallah CSE, UNSW Term 3; 2020 Program Properties 2 Consider a sequence of states, representing the evaluation of a program in a small step semantics (a trace): σ1 →σ2 →σ3 →···→σn Observe that some traces are finite, whereas others are infinite. To simplify things, we’ll make all traces infinite […]
程序代写代做代考 c++ Java Haskell javascript go Lambda Calculus C 1 Read More »
Cost Models Control Flow Refinement and Simulation 1 Abstract Machines Dr. Liam O’Connor University of Edinburgh LFCS UNSW, Term 3 2020 Cost Models Control Flow Refinement and Simulation Big O We all know that MergeSort has O(n log n) time complexity, and that BubbleSort has O(n2) time complexity, but what does that actually mean? Big
程序代写代做代考 algorithm assembly C graph Cost Models Control Flow Refinement and Simulation Read More »
COMP3161/COMP9164 Supplementary Lecture Notes Data Types Liam O’Connor, Gabriele Keller November 5, 2019 1 Composite Data Types Up to now, we only discussed primitive data types, like integers boolean values, and function types. This is not only an inconvenience, but it seriously restricts the expressiveness of the language. For example, we cannot define a function
程序代写代做代考 Haskell Java C compiler COMP3161/COMP9164 Supplementary Lecture Notes Read More »
COMP3161/COMP9164 Abstract Machines Exercises Liam O’Connor October 20, 2019 1. Decision Machines: Suppose we have a language of nested brackets N (where ε is the empty string): N eNN eNN eNN εN 1 (e)N 2 ⟨e⟩N 3 [e]N 4 Note that ()() is not a string in this language. We developed a simple abstract machine
程序代写代做代考 algorithm C flex COMP3161/COMP9164 Read More »
Abstract Data Types Existential Types Existential Types and Abstraction Christine Rizkallah CSE, UNSW Term 3 2020 1 Abstract Data Types Existential Types Motivation Throughout your studies, lecturers have (hopefully) expounded on the software engineering advantages of abstract data types. So what is an abstract data type? 2 Abstract Data Types Existential Types Motivation Throughout your
程序代写代做代考 Haskell ocaml go C Java Abstract Data Types Existential Types Read More »
Natural Deduction Rule Induction Ambiguity Simultaneous Induction Natural Deduction and Rule Induction Dr. Liam O’Connor University of Edinburgh LFCS UNSW, Term 3 2020 1 Natural Deduction Rule Induction Ambiguity Simultaneous Induction Formalisation To talk about languages in a mathematical way, we need to formalise them. Formalisation Formalisation is the process of giving a language a
Abstract Data Types Existential Types Existential Types and Abstraction Christine Rizkallah CSE, UNSW Term 3 2020 1 Abstract Data Types Existential Types Motivation Throughout your studies, lecturers have (hopefully) expounded on the software engineering advantages of abstract data types. So what is an abstract data type? 2 Abstract Data Types Existential Types Motivation Throughout your
程序代写代做代考 Haskell ocaml go C Java Abstract Data Types Existential Types Read More »
COMP3161/COMP9164 Supplementary Lecture Notes Data Types Liam O’Connor, Gabriele Keller November 5, 2019 1 Composite Data Types Up to now, we only discussed primitive data types, like integers boolean values, and function types. This is not only an inconvenience, but it seriously restricts the expressiveness of the language. For example, we cannot define a function
程序代写代做代考 Haskell Java C compiler COMP3161/COMP9164 Supplementary Lecture Notes Read More »
Readers and Writers Haskell Issues with Locks Software Transactional Memory Wrap-up Bonus: Semantics for IO 1 Haskell Concurrency and STM Christine Rizkallah CSE, UNSW Term 3 2020 Readers and Writers Haskell Issues with Locks Software Transactional Memory Wrap-up Bonus: Semantics for IO Shared Data Consider the Readers and Writers problem: Problem We have a large
Safety and Liveness Type Safety Exceptions Safety and Liveness; Exceptions Christine Rizkallah CSE, UNSW Term 3; 2020 1 Safety and Liveness Type Safety Exceptions Program Properties Consider a sequence of states, representing the evaluation of a program in a small step semantics (a trace): σ1 →σ2 →σ3 →···→σn Observe that some traces are finite, whereas