Basic Serial Optimization CMPSC 450 Profiling … “but how do you know?” • Gain insight into code hotspots • Variety of methods: • visual observation • get_wall_time & printf • gprof • valgrind/callgrind & kcachegrind CMPSC 450 gprof • One of the most popular profiling tools available. • Difficult to use/understand! • Compile application with […]
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Abstract Data Types Abstract Data Types (ADTs) • Due to in 1974 Copyright By PowCoder代写 加微信 powcoder She received the 2008 Turing Award for this work • One of the most important advances in programming On par with structured programming and automatic memory management • Will be one of our guiding notions in
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Programming in C++ Operator Overloading, Friend Functions, the “Big Three” 01/11/2019 CE221 Part 4 Copyright By PowCoder代写 加微信 powcoder Operator Overloading 1 Operator overloading enables the C++ operators to work with objects of user-defined classes. Overloading cannot create new operators and cannot change the precedence, associativity or arity (i.e. how many operands it has) of
留学生辅导 CE221 Part 4 Read More »
Announcements Project Notes (for next week’s deliverable) • Add your proposed Android App to the CourseLink Discussion board: “CIS 3760 Projects – Project selections will be on a first-come- first served basis” – Include your Section # & Group # • Only 1 group member needs to upload the team contract to CourseLink • Only
Reminders and Clarifications • Each sprint must be documented in the GitLab wiki – Sprint Milestones are not accurate historical documents, since unfinished stories may be moved to the next Sprint Milestone, or put back in the Product Backlog due to new priorities – Wiki should document your sprint goals, progress, evidence of completed tasks
Some Clarifications on the Project • Doesafeature==astory? – Itdepends…(onthecomplexityofthefeature) – E.g.”AsauserIwanttobeabletoloadanimagesoIcanview it.” may be one story, or may need to be broken into multiple… “As a user I want to be able to load an image from the local file system so I can view my local files.” ”As a user I want to
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Names, Scopes and Bindings Chapter 3 Name, Scope, and Binding §Ease of programming – main driving force behind the design of modern languages §Core issues in language design: § names – abstraction § control flow § types, composite types § subroutines – control abstraction § classes – data abstraction §High level programming – more abstract
CS3342 – Assignment 1 due Feb. 10, 2021 1. (15pt) Given the simple calculator (Syntax: slide 16; textbook: p.54), give an example of input code that produces exactly three errors from the scanner. The scanner encounters an error when reading an invalid token. When that happens, assume that the scanner skips everything until the next
CS计算机代考程序代写 c++ algorithm CS3342 – Assignment 1 due Feb. 10, 2021 Read More »
Types Chapters 7, 8 Data Types § Use of types: § Provide implicit context for operations § C: a + b – integer/floating point addition § Pascal: new p – allocate right size § C: new my_type()- right size, call right constructor § Type checking § Type equivalence: when two types are the same §
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Introduction Chapter 1 Programming languages – ubiquitous 2 Computer evolution §ENIAC § 18,000 sq feet § 25 tones = 25,000 Kg § 5,000 instr/s §iPhone 6 § 4.55 ounces = 0.13 Kg § 25,000,000,000 instr/s § 20,000 x smaller, 5,000,000 x faster = 100,000,000,000 x more efficient 3 Introduction Why are there so many languages?