Turbo c++ Debugging please help!

[bobytch]

Good Day Everyone here is my code so far

#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
void vp(int x,int tc,int bk,char *text);
void square(int x,int y,int size);
 void main()
{//===========================================================
  int gdriver = DETECT, gmode, errorcode;
   initgraph(&gdriver, &gmode, "C:\\TC\\BGI");


//------------------monitor--------------------
      setbkcolor(0);
      setcolor(15);
 square(300,160,150);
 square(300,160,148);
 square(300,160,130);
 square(300,160,131);
 setaspectratio(2,5);
 int stangle=0,endangle=180;int radius = 100;

 setcolor (2);        // This becomes drawing color
 square(300, 160, 128);    // Draw the circle
 setfillstyle(1, 2); // Set pattern to fill interior
 floodfill(300,160, 2);  // Fill the circle

  setcolor(15);   /* draw arc */
  arc(295+9, 353, stangle, endangle, radius);
  arc(295+9, 354, stangle, endangle, radius-1);
  arc(295+9, 355, stangle, endangle, radius-90); //y=500
  line(200-4+9,355,400-5+9,355);
  line(200-4+9,355+2,400-5+9,355+2);

//------------------keyboard--------------
     int a=0,b=0;
for(int kb=0;kb<3;kb++)
{moveto(150+a,370+b);lineto(450+a,370+b);lineto(400+a,430+b);lineto(100+a,430+b);
 lineto(150+a,370+b);a=a+2,b=b+2;
}
       square(300,360,8);
	int distance=0;
for(int key=0;key<13;key++){square(170+distance,380,7);distance=distance+20;}
	 int distance1=0;
for(int key1=0;key1<9;key1++){square(160+distance1,392,7);distance1=distance1+30;}
	int distance2=0;
for(int key2=0;key2<9;key2++){square(140+distance2,403,8); distance2=distance2+32;}
       int distance3=0;
for(int key3=0;key3<9;key3++){square(130+distance3,415,8); distance3=distance3+32;}


//----------------cpu------------------------------------------
   //setclor
  rectangle(490,60,600,350);rectangle(490-1,60-1,600-1,350-1);
  rectangle(490-2,60-2,600-2,350-2);
  square(540,120,40);
  square(520,100,12);
  square(555,100,12);
  square(520,100,5);
  square(555,100,5);
  square(560,120,6);
  circle(530,125,7);
  circle(530,125,6); //hard disk

 square(537,250,28);
 square(520,250,12);
 square(555,250,12);
 circle(560,273,7);
 circle(560,273,6);
 circle(540,300,12);
 circle(540,300,8);
 circle(540,300,4);//floppy drive

 line(425-1,370-1,425-1,340-1);line(425-1,340-1,487-1,340-1);
 line(425,370,425,340);line(425,340,487,340);


 getch();
 }

i got one error

Undefined symbol square(int,int,int)in module..

i can't figured it out please help thanks in advance

[vidit_X]

Have you defined the function square(int,int,int) somewhere in your code?