The document discusses expressions and assignment statements in programming languages. It covers topics like arithmetic expressions, operator precedence and associativity, type conversions, relational and boolean expressions, short-circuit evaluation, and assignment statements. It provides details on these concepts for various languages like FORTRAN, C, C++, Java, Pascal, Ada and compares how they handle things like operator overloading, side effects, and implicit type conversions.
Overview of Language Processor : Fundamentals of LP , Symbol Table , Data Str...Bhavin Darji
Fundamentals of Language Processor
Analysis Phase
Synthesis Phase
Lexical Analysis
Syntax Analysis
Semantic Analysis
Intermediate Code Generation
Symbol Table
Criteria of Classification of Data Structure of Language Processing
Linear Data Structure
Non-linear Data Structure
Symbol Table Organization
Sequential Search Organization
Binary Search Organization
Hash Table Organization
Allocation Data Structure : Stacks and Heaps
Overview of Language Processor : Fundamentals of LP , Symbol Table , Data Str...Bhavin Darji
Fundamentals of Language Processor
Analysis Phase
Synthesis Phase
Lexical Analysis
Syntax Analysis
Semantic Analysis
Intermediate Code Generation
Symbol Table
Criteria of Classification of Data Structure of Language Processing
Linear Data Structure
Non-linear Data Structure
Symbol Table Organization
Sequential Search Organization
Binary Search Organization
Hash Table Organization
Allocation Data Structure : Stacks and Heaps
This Document about is C Programming language. You will learn Operators in C.
Types of operators-
Arithmetic Operators
Relational Operators
Increment Operator
Decrement Operator
Logical Operators
Conditional Operator
The C programming language is a structure oriented programming language, developed at Bell Laboratories in 1972 by Dennis Ritchie C programming language features were derived from an earlier language called “B” (Basic Co..
Compiler Construction
Phases of a compiler
Analysis and synthesis phases
-------------------
-> Compilation Issues
-> Phases of compilation
-> Structure of compiler
-> Code Analysis
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Introduction to C Programming
Content :
Introduction
-Types of programming language
-Machine Language
-Assembly Language
-High Level Language
Introduction to C programming
-Basic Structure of C Program
-Simple program in C programming
You can get more from our website:
www.programmingcampus.com
C is a general-purpose high level language that was originally developed by Dennis Ritchie for the Unix operating system. It was first implemented on the Digital Equipment Corporation PDP-11 computer in 1972.
This Document about is C Programming language. You will learn Operators in C.
Types of operators-
Arithmetic Operators
Relational Operators
Increment Operator
Decrement Operator
Logical Operators
Conditional Operator
The C programming language is a structure oriented programming language, developed at Bell Laboratories in 1972 by Dennis Ritchie C programming language features were derived from an earlier language called “B” (Basic Co..
Compiler Construction
Phases of a compiler
Analysis and synthesis phases
-------------------
-> Compilation Issues
-> Phases of compilation
-> Structure of compiler
-> Code Analysis
FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
We connect Students who have an understanding of course material with Students who need help.
Benefits:-
# Students can catch up on notes they missed because of an absence.
# Underachievers can find peer developed notes that break down lecture and study material in a way that they can understand
# Students can earn better grades, save time and study effectively
Our Vision & Mission – Simplifying Students Life
Our Belief – “The great breakthrough in your life comes when you realize it, that you can learn anything you need to learn; to accomplish any goal that you have set for yourself. This means there are no limits on what you can be, have or do.”
Like Us - https://www.facebook.com/FellowBuddycom
Introduction to C Programming
Content :
Introduction
-Types of programming language
-Machine Language
-Assembly Language
-High Level Language
Introduction to C programming
-Basic Structure of C Program
-Simple program in C programming
You can get more from our website:
www.programmingcampus.com
C is a general-purpose high level language that was originally developed by Dennis Ritchie for the Unix operating system. It was first implemented on the Digital Equipment Corporation PDP-11 computer in 1972.
Сергей Рубанов, разработчик EXANTE и, как он сам себя называет, JavaScript-самурай, выступил на митапе TechTalks с докладом «Real-time данные на фронтенде». Он рассказал, какие проблемы приходится решать при отображении финансовых данных.
Revista abelha rainha cosméticos campanha 01/2017Daniele Lopes
O nova revista da abelha rainha cosmétcos ja esta disponivel, corre lá, estamos com um show de ofertas para você!
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Esoft Metro Campus - Programming with C++
(Template - Virtusa Corporate)
Contents:
Overview of C++ Language
C++ Program Structure
C++ Basic Syntax
Primitive Built-in types in C++
Variable types
typedef Declarations
Enumerated Types
Variable Scope
Constants/Literals
Storage Classes
Operators
Control Constructs
Functions
Math Operations in C++
Arrays
Multi-dimensional Arrays
Strings
C++ Pointers
References
Date and Time
Structures
Basic Input / Output
Classes and Objects
Inheritance
Overloading
Polymorphism
Interfaces
Files and Streams
Exception Handling
Dynamic Memory
Namespaces
Templates
Preprocessor
Multithreading
Introduction to C Language - Version 1.0 by Mark John LadoMark John Lado, MIT
The C programming language is a general-purpose, high – level language (generally denoted as structured language). C programming language was at first developed by Dennis M. Ritchie at At&T Bell Labs.
C is one of the most commonly used programming languages. It is simple and efficient therefore it becomes best among all. It is used in all extents of application, mainly in the software development.
Many software's & applications as well as the compilers for the other programming languages are written in C also Operating Systems like Unix, DOS and windows are written in C.
C has many powers, it is simple, stretchy and portable, and it can control system hardware easily. It is also one of the few languages to have an international standard, ANSI C.
C++ is an object-oriented programming language. It was developed by Bjarne Stroustrup
at AT and T Bell Laboratories USA, in the early 1980’s. Stroustrup, an admirer of
Simula67 and a strong supporter of C wanted to combine the best of both the languages
and create a more powerful language that could support object-oriented programming
features and still retain the power and elegance of C. The result was C++
#Code2Create series: C++ is a powerful general-purpose programming language. It can be used to develop operating systems, browsers, games, and so on. C++ supports different ways of programming like procedural, object-oriented, functional, and so on.Start your programming journey and join us to learn C++ basics!
by Google Developers Group and Women Tech-markers Kuwait chapter:
Instagram and Twitter: @GDGWTMKUWAIT
Recently Apple team has released Swift 1.2 as a part of Xcode 6.3 beta. Beta release includes a significantly enhanced swift compiler and as well as new features in the Swift language. Apples team has came up with improvements in compiler and new language features in Swift 1.2 beta release ,let’s dive into improvements in Swift language
C is an imperative, procedural language in the ALGOL tradition. It has a static type system. In C, all executable code is contained within subroutines (also called "functions", though not in the sense of functional programming). Function parameters are passed by value, although arrays are passed as pointers, i.e. the address of the first item in the array. Pass-by-reference is simulated in C by explicitly passing pointers to the thing being referenced.
C program source text is free-format, using the semicolon as a statement separator and curly braces for grouping blocks of statements.
The C language also exhibits the following characteristics:
The language has a small, fixed number of keywords, including a full set of control flow primitives: if/else, for, do/while, while, and switch. User-defined names are not distinguished from keywords by any kind of sigil.
It has a large number of arithmetic, bitwise, and logic operators: +,+=,++,&,||, etc.
More than one assignment may be performed in a single statement.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
De-mystifying Zero to One: Design Informed Techniques for Greenfield Innovati...
7 expressions and assignment statements
1. ICS 313 - Fundamentals of Programming Languages 1
7. Expressions and Assignment Statements
7.2 Arithmetic Expressions
Their evaluation was one of the motivations for the
development of the first programming languages
Arithmetic expressions consist of operators, operands,
parentheses, and function calls
Design issues for arithmetic expressions
What are the operator precedence rules?
What are the operator associativity rules?
What is the order of operand evaluation?
Are there restrictions on operand evaluation side effects?
Does the language allow user-defined operator overloading?
What mode mixing is allowed in expressions?
2. ICS 313 - Fundamentals of Programming Languages 2
7.2 Arithmetic Expressions (continued)
A unary operator has one operand
A binary operator has two operands
A ternary operator has three operands
The operator precedence rules for expression evaluation define the
order in which “adjacent” operators of different precedence levels are
evaluated (“adjacent” means they are separated by at most one
operand)
Typical precedence levels
parentheses
unary operators
** (if the language supports it)
*, /
+, -
7.2 Arithmetic Expressions (continued)
The operator associativity rules for expression evaluation define the order in
which adjacent operators with the same precedence level are evaluated
Typical associativity rules:
Left to right, except **, which is right to left
Sometimes unary operators associate right to left (e.g., FORTRAN)
APL is different; all operators have equal precedence and all operators
associate right to left
Precedence and associativity rules can be overriden with parentheses
Operand evaluation order
The process:
Variables: just fetch the value
Constants: sometimes a fetch from memory; sometimes the constant is in the
machine language instruction
Parenthesized expressions: evaluate all operands and operators first
Function references: The case of most interest!
Order of evaluation is crucial
3. ICS 313 - Fundamentals of Programming Languages 3
7.2 Arithmetic Expressions (continued)
Functional side effects - when a function changes a
two-way parameter or a nonlocal variable
The problem with functional side effects:
When a function referenced in an expression alters
another operand of the expression e.g., for a parameter
change:
a = 10;
b = a + fun(&a);
/* Assume that fun changes its parameter */
Same problem with global variables
7.2 Arithmetic Expressions (continued)
Two Possible Solutions to the Problem:
Write the language definition to disallow functional side effects
No two-way parameters in functions
No nonlocal references in functions
Advantage: it works!
Disadvantage: Programmers want the flexibility of two-way parameters (what about
C?) and nonlocal references
Write the language definition to demand that operand
evaluation order be fixed
Disadvantage: limits some compiler optimizations
Conditional Expressions
C, C++, and Java (?:) e.g.
average = (count == 0)? 0 : sum / count;
4. ICS 313 - Fundamentals of Programming Languages 4
7.3 Overloaded Operators
Some is common (e.g., + for int and float)
Some is potential trouble (e.g., * in C and C++)
Loss of compiler error detection (omission of an operand
should be a detectable error)
Some loss of readability
Can be avoided by introduction of new symbols (e.g., Pascal’s
div)
C++ and Ada allow user-defined overloaded operators
Potential problems:
Users can define nonsense operations
Readability may suffer, even when the operators make sense
7.4 Type Conversions
A narrowing conversion is one that converts an object to a type that
cannot include all of the values of the original type e.g., float to int
A widening conversion is one in which an object is converted to a
type that can include at least approximations to all of the values of
the original type e.g., int to float
A mixed-mode expression is one that has operands of different types
A coercion is an implicit type conversion
The disadvantage of coercions:
They decrease in the type error detection ability of the compiler
In most languages, all numeric types are coerced in expressions,
using widening conversions
In Ada, there are virtually no coercions in expressions
5. ICS 313 - Fundamentals of Programming Languages 5
7.4 Type Conversions (continued)
Explicit Type Conversions
Often called casts e.g.
Ada:
FLOAT(INDEX) -- INDEX is INTEGER type
Java:
(int)speed /* speed is float type */
Errors in Expressions
Caused by:
Inherent limitations of arithmetic e.g. division by zero
Limitations of computer arithmetic e.g. overflow
Such errors are often ignored by the run-time system
7.5 Relational and Boolean Expressions
Relational Expressions:
Use relational operators and operands of various types
Evaluate to some Boolean representation
Operator symbols used vary somewhat among languages (!=, /=, .NE., <>,
#)
Boolean Expressions
Operands are Boolean and the result is Boolean
Operators:
FORTRAN 77 FORTRAN 90 C Ada
.AND. and && and
.OR. or || or
.NOT. not ! not
xor
C has no Boolean type--it uses int type with 0 for false and nonzero for
true
One odd characteristic of C’s expressions: a < b < c is a legal expression,
but the result is not what you might expect
6. ICS 313 - Fundamentals of Programming Languages 6
7.5 Relational and Boolean Expressions (continued)
Precedence of all Ada Operators:
**, abs, not
*, /, mod, rem
unary -, +
binary +, -, &
relops, in, not in
and, or, xor, and then, or else
C, C++, and Java have over 40 operators and least
15 different levels of precedence
7.6 Short Circuit Evaluation
Suppose Java did not use short-circuit evaluation
Problem: table look-up
index = 1;
while (index <= length) && (LIST[index] != value)
index++;
C, C++, and Java: use short-circuit evaluation for the usual Boolean
operators (&& and ||), but also provide bitwise Boolean operators
that are not short circuit (& and |)
Ada: programmer can specify either (short-circuit is specified with
and then and or else)
FORTRAN 77: short circuit, but any side-affected place must be set
to undefined
Short-circuit evaluation exposes the potential problem of side effects
in expressions e.g. (a > b) || (b++ / 3)
7. ICS 313 - Fundamentals of Programming Languages 7
7.7 Assignment Statements
The operator symbol:
= FORTRAN, BASIC, PL/I, C, C++, Java
:= ALGOLs, Pascal, Ada
= Can be bad if it is overloaded for the relational operator
for equality
e.g. (PL/I) A = B = C;
Note difference from C
7.7 Assignment Statements (continued)
More complicated assignments:
Multiple targets (PL/I)
A, B = 10
Conditional targets (C, C++, and Java)
(first == true) ? total : subtotal = 0
Compound assignment operators (C, C++, and Java)
sum += next;
Unary assignment operators (C, C++, and Java)
a++;
C, C++, and Java treat = as an arithmetic binary operator
e.g.
a = b * (c = d * 2 + 1) + 1
This is inherited from ALGOL 68
8. ICS 313 - Fundamentals of Programming Languages 8
7.7 Assignment Statements (continued)
Assignment as an Expression
In C, C++, and Java, the assignment statement
produces a result
So, they can be used as operands in expressions
e.g. while ((ch = getchar() != EOF) { ... }
Disadvantage
Another kind of expression side effect
7.8 Mixed-Mode Assignment
In FORTRAN, C, and C++, any numeric value can
be assigned to any numeric scalar variable;
whatever conversion is necessary is done
In Pascal, integers can be assigned to reals, but
reals cannot be assigned to integers (the
programmer must specify whether the conversion
from real to integer is truncated or rounded)
In Java, only widening assignment coercions are
done
In Ada, there is no assignment coercion