This document provides an overview of the C programming language including its history, standards, structure, and comparisons to Java. It was created by Dennis Ritchie at Bell Labs in the early 1970s to develop the Unix operating system. C is a procedural, medium-level language that provides low-level access to memory allowing it to be compiled directly to machine code for efficiency. It influenced many modern languages but lacks features like exception handling and object-oriented programming.
1 CMPS 12M Introduction to Data Structures Lab La.docxtarifarmarie
1
CMPS 12M
Introduction to Data Structures Lab
Lab Assignment 3
The purpose of this lab assignment is to introduce the C programming language, including standard input-output
functions, command line arguments, File IO, and compilation with Makefiles.
Introduction to C
If you are not already familiar with C (or even if you are) it is recommended that you purchase a good C reference
such as C for Java Programmers: a Primer by Charlie McDowell (Lulu.com 2007). The C programming
language is, in a certain sense, the grandparent of Java (C++ being its parent). Java is known as an Object Oriented
Programming (OOP) language, which means that data structures and the procedures which operate on them are
grouped together into one language construct, namely the class. Common behavior amongst classes is specified
explicitly through the mechanism of inheritance. The C programming language on the other hand does not
directly support OOP, although it can be implemented with some effort. C is known as a procedural programming
language, which means that data structures and functions (i.e. procedures) are separate language constructs. There
are no classes, no objects, and no inheritance. New data types in C are created using the typedef and struct
constructs, which will be illustrated in future lab assignments. There is however much common syntax between
Java and C. Many control structures such as loops (while, do-while, for), and branching (if, if-else, switch) are
virtually identical in the two languages. One major difference is in the way program input and output is handled,
both to and from standard IO devices (keyboard and terminal window), and to and from files. The following is
an example of a "Hello World!" program in C.
Example
/*
* hello.c
* Prints "Hello World!" to stdout
*/
#include <stdio.h>
int main(){
printf("Hello World!\n");
return 0;
}
Comments in C are specified by bracketing them between the strings /* and */, and may span several lines. For
instance /* comment */ or
/* comment
comment */
or
/*
* comment
* comment
*/
are all acceptable. With the right compiler flags, Java/C++ style comments are also acceptable.
// comment
// comment
2
You may use any style you like, but throughout this document we will use the older C style /*comments*/.
Any line beginning with # is known as a preprocessor directive. The preprocessor performs the first phase of
compilation wherein these directives, which are literal text substitutions, are performed, making the program
ready for later stages of compilation. The line #include<stdio.h> inserts the standard library header file
stdio.h, which specifies functions for performing standard input-output operations. Notice that preprocessor
commands in C do not end in a semicolon. One can also specify constant macros using the #define preprocessor
directive as follows.
.
This is A Crash Course in C,in which we have discusse whole c programming only in 3 parts.This is first part of C Tutorials From Basic to Advance in which we have discussed-
Introduction
C vs C++
Translator
Compilation process
Header file
Keyword
Identifiers
Constant
String
Operators
Data types
Qualifiers
Basic Program
Typeconversion
typecasting
please like comment & Subscribe!
If anybody have some questions regarding my videos please tell me at
E-mail-- iamsameer1997@gmail.com
Facebook: https://www.facebook.com/mdsamir.shaikh.948
1 CMPS 12M Introduction to Data Structures Lab La.docxtarifarmarie
1
CMPS 12M
Introduction to Data Structures Lab
Lab Assignment 3
The purpose of this lab assignment is to introduce the C programming language, including standard input-output
functions, command line arguments, File IO, and compilation with Makefiles.
Introduction to C
If you are not already familiar with C (or even if you are) it is recommended that you purchase a good C reference
such as C for Java Programmers: a Primer by Charlie McDowell (Lulu.com 2007). The C programming
language is, in a certain sense, the grandparent of Java (C++ being its parent). Java is known as an Object Oriented
Programming (OOP) language, which means that data structures and the procedures which operate on them are
grouped together into one language construct, namely the class. Common behavior amongst classes is specified
explicitly through the mechanism of inheritance. The C programming language on the other hand does not
directly support OOP, although it can be implemented with some effort. C is known as a procedural programming
language, which means that data structures and functions (i.e. procedures) are separate language constructs. There
are no classes, no objects, and no inheritance. New data types in C are created using the typedef and struct
constructs, which will be illustrated in future lab assignments. There is however much common syntax between
Java and C. Many control structures such as loops (while, do-while, for), and branching (if, if-else, switch) are
virtually identical in the two languages. One major difference is in the way program input and output is handled,
both to and from standard IO devices (keyboard and terminal window), and to and from files. The following is
an example of a "Hello World!" program in C.
Example
/*
* hello.c
* Prints "Hello World!" to stdout
*/
#include <stdio.h>
int main(){
printf("Hello World!\n");
return 0;
}
Comments in C are specified by bracketing them between the strings /* and */, and may span several lines. For
instance /* comment */ or
/* comment
comment */
or
/*
* comment
* comment
*/
are all acceptable. With the right compiler flags, Java/C++ style comments are also acceptable.
// comment
// comment
2
You may use any style you like, but throughout this document we will use the older C style /*comments*/.
Any line beginning with # is known as a preprocessor directive. The preprocessor performs the first phase of
compilation wherein these directives, which are literal text substitutions, are performed, making the program
ready for later stages of compilation. The line #include<stdio.h> inserts the standard library header file
stdio.h, which specifies functions for performing standard input-output operations. Notice that preprocessor
commands in C do not end in a semicolon. One can also specify constant macros using the #define preprocessor
directive as follows.
.
This is A Crash Course in C,in which we have discusse whole c programming only in 3 parts.This is first part of C Tutorials From Basic to Advance in which we have discussed-
Introduction
C vs C++
Translator
Compilation process
Header file
Keyword
Identifiers
Constant
String
Operators
Data types
Qualifiers
Basic Program
Typeconversion
typecasting
please like comment & Subscribe!
If anybody have some questions regarding my videos please tell me at
E-mail-- iamsameer1997@gmail.com
Facebook: https://www.facebook.com/mdsamir.shaikh.948
C is mother language of all programming language.
It is a system programming language. It is a procedure-oriented programming language. It is also called mid-level programming language.
C evolved from a language called B, written by Ken Thompson at Bell Labs in 1970. Ken used B to write one of the first implementations of UNIX. B in turn was a descendant of the language BCPL (developed at Cambridge (UK) in 1967), with most of its instructions removed.
So many instructions were removed in going from BCPL to B, that Dennis Ritchie of Bell Labs put some back in (in 1972), and called the language C.
The famous book The C Programming Language was written by Kernighan and Ritchie in 1978, and was the definitive reference book on C for almost a decade.
The original C was still too limiting, and not standardized, and so in 1983, an ANSI committee was established to formalize the language definition.
It has taken until now (ten years later) for the ANSI ( American National Standard Institute) standard to become well accepted and almost universally supported by compilers.
The C is a general-purpose, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system.
The C++ Programming Language is basically an extension of the C Programming Language. The C Programming language was developed from 1969-1973 at Bell labs, at the same time the UNIX operating system was being developed there. C was a direct descendant of the language B, which was developed by Ken Thompson as a systems programming language for the fledgling UNIX operating system. B, in turn, descended from the language BCPL which was designed in the 1960s by Martin Richards while at MIT.
In 1971 Dennis Ritchie at Bell Labs extended the B language (by adding types) into what he called NB, for "New B". Ritchie credits some of his changes to language constructs found in Algol68, although he states "although it [the type scheme], perhaps, did not emerge in a form that Algol's adherents would approve of" After restructuring the language and rewriting the compiler for B, Ritchie gave his new language a name: "C".
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C is mother language of all programming language.
It is a system programming language. It is a procedure-oriented programming language. It is also called mid-level programming language.
C evolved from a language called B, written by Ken Thompson at Bell Labs in 1970. Ken used B to write one of the first implementations of UNIX. B in turn was a descendant of the language BCPL (developed at Cambridge (UK) in 1967), with most of its instructions removed.
So many instructions were removed in going from BCPL to B, that Dennis Ritchie of Bell Labs put some back in (in 1972), and called the language C.
The famous book The C Programming Language was written by Kernighan and Ritchie in 1978, and was the definitive reference book on C for almost a decade.
The original C was still too limiting, and not standardized, and so in 1983, an ANSI committee was established to formalize the language definition.
It has taken until now (ten years later) for the ANSI ( American National Standard Institute) standard to become well accepted and almost universally supported by compilers.
The C is a general-purpose, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system.
The C++ Programming Language is basically an extension of the C Programming Language. The C Programming language was developed from 1969-1973 at Bell labs, at the same time the UNIX operating system was being developed there. C was a direct descendant of the language B, which was developed by Ken Thompson as a systems programming language for the fledgling UNIX operating system. B, in turn, descended from the language BCPL which was designed in the 1960s by Martin Richards while at MIT.
In 1971 Dennis Ritchie at Bell Labs extended the B language (by adding types) into what he called NB, for "New B". Ritchie credits some of his changes to language constructs found in Algol68, although he states "although it [the type scheme], perhaps, did not emerge in a form that Algol's adherents would approve of" After restructuring the language and rewriting the compiler for B, Ritchie gave his new language a name: "C".
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Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
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Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
4. Where?
in the Computer Science Research Department of Bell Labs in Murray Hill, NJ
Who?
by Dennis Ritchie
Why?
Previous languages (such as B) were difficult to implement programs in due to
various issues such as hardware constraints and B being incredibly slow due to it being
an interpreted language (executed by software running on top of the CPU)
C was developed to move code from assembly to a “higher” language, being
tied to the development of Unix to provide more control
https://www.bell-labs.com/usr/dmr/www/chist.pdf
5.
6. ANSI (American National Standards Institute) standardized C in 1989 to create ANSI C
The International standard (ISO) was adopted by ANSI in 1990 which is known as C89
Updates in 1995 (C05) and 1999 (C99), latest being in 2018 (C18)
7. More on ANSI C
C is a “medium level” programming language that lets us use it at a “low level”
Contains the usual structures that many “high level” languages offer to us but also
allowing us to incorporate assembly to directly access the memory
Numerous library functions available that may be imported
9. Consists of one or more functions (not methods as they are called in Java)
Program consists of executing the main function
int main (void) { … }
int main (int argc, char (argv[]) { … }
Functions contain:
A heading (data type return, name, optional arguments)
Argument declarations (if any optional arguments)
Statements (code inside the curly braces)
10. Preprocessors (macros, compiler controls, constant values, libraries, etc)
Additional local and external functions and variables
Recall control returns to the place where a function was called (may or may not return
with a value)
Expressions must end with a semlcolon (same as Java)
Compound instructions must be enclosed with curly braces { … }
Comments delimited by // or by multi line comments /* */
17. GCC
GNU Compiler Collection (aka gcc)
optimizing compiler which we will use to compile our c code
How do we utilize gcc exactly?
gcc –o hello hello.c
This command basically says compile “hello.c” to machine code name hello
“hello” is now created, now how do we run it?
./hello
Executes hello
./ is necessary (.’ specifies the directory you’re in currently)
18. Pitfalls
Easy to write spaghetti code since C is procedural
Preprocessors can get messy quick
Unable to gracefully terminate (meaning no catch/throw/exceptions!)
Not much of OOP
Many more which I’ve not included here…
20. Off campus?
Download the Cisco VPN https://its.gmu.edu/service/virtual-private-network-
vpn/
Connecting by SSH to Zeus via command line
ssh username@zeus.vse.gmu.edu
Download the SSH client
https://labs.vse.gmu.edu/index.php/FAQ/SSH
21. Copying files from/to Zeus
From your computer to Zeus
scp local user_zeus.vse.gmu.edu:~/.
From Zeus to your computer
scp user@zeus.vse.gmu.edu:~/remote local
Windows users need to use Putty
https://its.gmu.edu/knowledge-base/how-to-install-putty-ssh-for-
windows/
22. Shell
A command line interpreter which runs commands, programs, shell scripts
bash being the standard shell and the $ character being its default prompt
Some commands which you may utilize the most:
clear pwd ls cd cp mv rm mkdir rmdir cat
man
24. We will utilize vi/vim on Zeus
Text editor to create/edit files
Two modes:
Command mode and Insert Mode
Command mode to insert mode – type i
Insert mode to command mode – hit the escape key
25. Some commands which you may find useful:
vim filename (create a file named filename or edit existing file if it exists)
:wq (write file and exit)
:q (Quits, warning is printed if current file is not saved prior)
:q! (Quits with no warning)
:w (Save file)
27. Java runs on the JVM, provides a safe programming environment by allowing stuff
such as array bounds checks
C runs on the machine directly which does not contain such sanity checks that Java
has
29. Java C
Strings String s = “Hello”; char * s = “Hello”;
char s2[6];
strcpy(s2, “Hello”)
String Concatenation s1 + s2 #include <string.h>
strcat(s1,s2)
Arrays Int [] x = new int[10]; Int x[10];
Array bounds checks Occurs at run time No run time checks
Pointers Objects are implicit pointers Int *p
31. Variables
Consist of letters and/or digits. They should not be key words, they can’t contain
special symbols, such as blanks, -, ", etc.
A few C Keywords
typedef, return, for, char, if, goto, …
The first character must be a letter or the symbol (_)
An uppercase letter is not equivalent to a lowercase
32. Constants
Like variables, except their values never change
Also known as literals, need to specify the data type of the constant
Common practice to define constants in UPPER-CASE
const data_type constant_name;
Macro defined constants:
#define id value
33. Data Types
char – Character (1 byte)
Int – Integer (4 bytes)
float – Floating point numbers (4 bytes)
double – Floating point with double precision (8 bytes)
These data type may be coupled with the words – unsigned, signed, short, and long
before the data type
The bit size assigned to the data type usually depends on the capacity of the computer
and the compiler used. However, a char is always 1 byte.
36. printf(format string, val1, val2);
Placeholders can also specify widths and precisions
%10d : add spaces to take up at least 10 characters
%010d : add zeros to take up at least 10 characters
%.2f : print only 2 digits after decimal point
%5.2f : print 1 decimal digit, add spaces to take up 5 chars
46. Tasks this week
Familiarize yourself with a text editor
Learn to work with Unix commands
Lab 1
Working with Zeus
“All theory and no practice makes Jack a dull boy”