C programming operator

1) Mathemitacal operator:

    a) Binary:

        1) Addition (+)

        2) Subtraction (-)

        3) Multiplication (*)

        4) Division (/)

        5) Modulus (%)

    b) Unary:

        1) (++)

        2) (--)

        3) (-)

2) Assignment operator:

        1) Equal to(=)

3) Relational operator:

        1) Equal (==)

        2) Greater than (>)

        3) Less than (<)

        4) Greater than or equal to (>=)

        5) Less than or equal to (<=)

        6) Not equal to (!=)

4) Logical operator:

        1) AND (&&)

        2) OR (||)

        3) NOT (!)

5) Conditional operator:

        1) Question mark (?)

6) Bitwise operator:

        1) Shift operator (<<, >>)

        2) Bitwaise AND (&)

        3) Bitwaise OR (|)

        4) Bitwaise Compliment

7) Sizeof operator:

        1) sizeof()

8) Comma operator:

        1) comma (,)

From: Sumon Sarker

Input two positive integer and returns GCD

#include<stdio.h>

#include<conio.h>

int Gcd(int a, int b)

{

   int c;

   while(a%b!=0)

   {

      c=a%b;

      a=b;

      b=c;

   }

   return b;

}

void main()

{

   int a,b;

   clrscr();

   printf("Enter a= ");

   scanf("%d",&a);

   printf("Enter b= ");

   scanf("%d",&b);

   printf("GCD= %d",Gcd(a,b));

   getch();

}

From: Book by ashraf

Graphics প্রগ্রামিং এর library ফাংশন ()

আপনি C language এ graphics programming এ interest থাকলে নিচের ফাংশনগুলো ব্যবহার করতে পারেন।

void far arc(int x,int y, int start_angle,int end_angle, int radius");

void far bar(int left, int top, int right, int bottom,int depth, int topflag);

void far bar(int left, int top, int right, int bottom);

void far circle(int x,int y, int radius");

void far cleardevice(void);

void far clearviewport(void);

void far closegraph(void);

void far detectgraph(int far *graphdriver, int far *graphmode );

void far drawpoly(int numpoints,int far *polypoints);

void far ellipse(int x,int y,int start_angle,int end_angle, int x_radius,int y_radius");

void far fillellipse(int x,int y, int x_radius,int y_radius");

void far fillpoly(int numpoints,int far *polypoints);

void far floodfill(int x,int y, int border");

int far getbkcolor(void);

int far getcolor(void);

char far getdrivername(void );

void far getfillpattern(char far *pattern);

void far getfillsettings(struct fillsettings_type far *fileinfo);

int far getgraphmode(void );

void far getimage(int left,int top,int right,int bottom,void far *bitmap);

int far getmaxmode(void );

int far getmaxx(void);

int far getmaxy(void);

char * far getmodename(int mode_number);

unsigned far getpixel(int x,int y);

int far gettext(int left, int top,int right,int bottom, void * destination);

int far gettextinfo(struct text_info *r);

int far getx(void);

int far gety(void);

void far graphdefaults(void);

char * far grapherrormsg(int error_code);

int far graphresult(void);

int far graphresult(void);

unsigned far imagesize(int left,int top,int right, int bottom);

void far initgraph(int far *graph_driver,int far *graphmode,"char driver_PATH");

int far installuserfont(char far *name);

void far line(int x1,int y1,int x2,int y2);

void far linerel(int dx, int dy);

void far lineto(int x,int y);

int movetext(int left, int top, int right, int bottom, int destleft, int desttop);

void far uottext(char far *text_string);

From: Sumon Sarker

C ল্যাঙ্গুয়েজ Macro

যারা C language নিয়ে কাজ করেন তারা এই ম্যাক্রোগুল Use করতে পারেন Graphics প্রোগ্রামিং জন্য।

Name:                  Value              Color system

===========================================

LASTMODE         -1                  Previous mode

BW40                     0                  40×25 WB

C40                        1                   40×25 Color

BW80                     2                   80×25 WB

C80                         3                   80×25 Color

MONO                   7                   40×25 Monochrome

C4350                    64                  43 line EGA 50 line VGA

From: Me