{"id":17,"date":"2017-12-18T10:17:03","date_gmt":"2017-12-18T10:17:03","guid":{"rendered":"http:\/\/lotusithub.com\/blog\/?p=17"},"modified":"2017-12-18T10:17:03","modified_gmt":"2017-12-18T10:17:03","slug":"c-programming","status":"publish","type":"post","link":"https:\/\/lotusithub.com\/blog\/c-programming\/","title":{"rendered":"C Programming"},"content":{"rendered":"

C is a programming language <\/a> developed at AT&T\u2019s Bell Laboratories of USA in 1972.It was designed and written by a man named Dennis Ritchie.
\nThere were many languages discovered before C like BCPL IN 1969,B in 1970 but all were failed in the long run.<\/p>\n

Facts about C<\/h3>\n

\u2022 C was invented to write an operating system called UNIX.
\n\u2022 The language was formalized in 1988 by the American National Standard Institute (ANSI).
\n\u2022 Today\u2019s most popular Linux OS and RDBMS MySQL have been written in C.
\n\u2022 Iphone ,Twitter website and most of the antiviruses are also written in C.
\n\u2022 Turbo C++ is a popular compiler for C language.<\/p>\n

Features of C<\/h3>\n

\u2022 C is a middle-level programming language.
\n\u2022 C is the mother level of other programming languages.
\n\u2022 C is a case-sensitive language.
\n\u2022 C is a procedure-oriented language.
\n\u2022 C supports top to bottom process.
\nUses of C in daily life<\/p>\n

\u2022 Major parts of operating systems like Windows,UNIX,Linux and Android are written in C.
\n\u2022 Mobile devices like Smartphones and tablets are getting smarter due to programs and operating systems which are builded by C language.
\n\u2022 Most of the 3D computer games are fast just
\nBecause of C which is the builder of most of the gaming frameworks.<\/p>\n

Getting Started With C<\/h3>\n

\u2022 Preprocessor-The preprocessor offers several features called preprocessor directives.Each of these begins with a # symbol and are often placed at the beginning of the program.
\n\u2022 Header file-is a library file which contains all the functions.
\n# include is the preprocessor directive for C and C++,which contains all header files which contains functions.
\nis a type of header file which means \u2018standard input and output\u2019.It contains all the functions like printf ,scanf.
\nis a type of header file which means \u2018console input and output\u2019 .It contains all the functions like getch();clrscr().
\n\u2018.h\u2019 is the extension for header files.
\nKeywords-There are 32 keywords reserved in C language.
\n\u2018void\u2019 is a keyword which does not return anything.
\nmain() means startup of a code.
\n\u2018printf\u2019 is used to get the output whereas\u2019 scanf\u2019 is used to give the input with respect to a certain function and a symbol of &(ampersand) is used with the variable inside the \u2018scanf\u2019 function.
\n\u2018comment\u2019 is used to hide the line.<\/p>\n

Symbol of comment-\u2018\/\/\u2019<\/h3>\n

\u2018getch()\u2019-is used to identify the function.
\n– Is used to hold the console screen.
\n{-\u2018start\u2019
\n}-\u2018closure of the source code\u2019<\/p>\n

Data Type<\/h3>\n

Data type refers to an extensive system used for declaring variables or functions of different types.Data type is used for memory allocation which stores some data.<\/p>\n\n\n\n\n\n\n
\n

Nature<\/p>\n<\/td>\n

\n

Values<\/p>\n<\/td>\n

\n

Datatype<\/p>\n<\/td>\n

\n

Size<\/p>\n<\/td>\n

\n

Range<\/p>\n<\/td>\n

\n

Format Specifire<\/p>\n<\/td>\n<\/tr>\n

\n

Integer<\/p>\n<\/td>\n

\n

10<\/p>\n<\/td>\n

\n

int<\/p>\n<\/td>\n

\n

2 bytes<\/p>\n<\/td>\n

\n

-32768to32768<\/p>\n<\/td>\n

\n

%d<\/p>\n<\/td>\n<\/tr>\n

\n

Decimal<\/p>\n<\/td>\n

\n

22.24<\/p>\n<\/td>\n

\n

float<\/p>\n<\/td>\n

\n

4 bytes<\/p>\n<\/td>\n

\n

-3.4*e^10^(-8) to 3.4*e^10(8)<\/p>\n<\/td>\n

\n

%f<\/p>\n<\/td>\n<\/tr>\n

\n

Character<\/p>\n<\/td>\n

\n

‘a’<\/p>\n<\/td>\n

\n

char<\/p>\n<\/td>\n

\n

1 byte<\/p>\n<\/td>\n

\n

-128 to 127<\/p>\n<\/td>\n

\n

% c<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Some symbols-\\t \u2013used for space
\n\\n-used for newline<\/p>\n

Operators<\/h3>\n

An operator is a symbol that tells the compiler to perform specific mathematical or logical functions.
\nTypes of operators-<\/b><\/p>\n

    \n
  1. \n Arithmetic Operators- +,-,*,\/<\/li>\n
  2. Relational Operators- a<b,a>b,a<=b,a>=b,a==b\n
  3. Logical Operators-AND, OR, NOT\n
  4. Bitwise Operators->> which means if 9>>2;9\/2*2=2
    \n<< which means if 2<<0;2*2*0=2<\/p>\n
  5. Assignment Operators-
    \nIf a=10 and a=b implies that \u2018b\u2019 is assigned to \u2018a\u2019(right to left).
    \nAlso , a+ =a+b<\/p>\n
  6. Procedure Association-
    \na=10+20-5*7\/9%2;
    \nb=100*100+100*100;<\/li>\n
  7. Increment or Decrement-<\/li>\n

    These are of two types-
    \nPre increment (or pre decrement) and Post decrement(or post decrement).<\/p>\n

    C++ Classes in Pune<\/a><\/h4>\n","protected":false},"excerpt":{"rendered":"

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