Thread: kindly help

i am doing an image processing code in c++ 2010. but i am getting an error in the 2d arrays. kindly help me. i am pasting my code here. and high lighting the place where the error is. thanx in advance

Code:

# include <stdio.h>
# include <iostream>
using std :: cout;
using std :: endl;
void main ()
{
	int ch;
	int i;
	unsigned int h[50], filesize, width,height, validity, bpp, sod, h[2000][2000], col, row ;
	FILE *fp;
	fp= fopen ("c:\\lena512.bmp", "r");               ///ADDRESS OF FILE.
		if (fp == NULL)
			puts("not possible");
		
//while((ch = fgetc(fp)) != EOF)
  
		for (i=0; i<=30; i++)
		{
			ch = fgetc(fp);
        h[i]= ch;
		}
validity= h[0] + 256*h[1];
if (validity== 19778)
	cout << "                                it is a valid BITMAP FILE "<<endl<<endl<<endl;
filesize= h[2]+ 256*h[3]+ 256*256*h[4]+ 256*256*256*h[5];
cout<< "FILE SIZE *****************************   "<< filesize << " bytes"<<endl<<endl<<endl;
width= h[18] + 256*h[19] + 65536*h[20] + 16777216*h[21];
height= h[22]+ 256*h[23]+ 65536*h[24]+ 16777216*h[25];
cout<< "DIMENSIONS(wid x hei) *****************   "<< width <<" x "<< height<< endl<<endl;
bpp= h[28]+ 256*h[29];
if (bpp==1)
	cout << "monochromatic";
	if (bpp==4)
		cout<< "16colour";
		if (bpp==8)
			cout<< "256colour";
			if (bpp==16)
				cout<< "64k colour";
				if (bpp==24)
					cout<< "16million colour";
sod  = h[10] + 256*h[11]+ 65536*h[12]+ 16777216*h[13];
cout <<endl<< "sod"<< sod;
fclose(fp);
cout << endl<<"end";
for (row=sod; row<=width; row++)
	for(col=0; col<=height; col++)
	{
		ch = fgetc(fp);
h[row][col]= 2;  error: subscript requires array or pointer type
	}
while(1);

}

c++ and c are almost the same. kindly tell me waht is the prob in 2d array if u can

why cant i be able to do h[row][col]=2;

i know it is an array as i have declared it as an array. but if i write h[row][col]=2 in the for loop. it should go like this
h[0][0]=2
h[0][1]=2
h[0][2]=2
isnt it

Originally Posted by Omer

i know it is an array as i have declared it as an array. but if i write h[row][col]=2 in the for loop. it should go like this
h[0][0]=2
h[0][1]=2
h[0][2]=2
isnt it

for that you need to put it this way:
Example:

Code:

h[2][3]= {
               {2,2},
               {2,2},
               {2,2}
               };

Its just one of the various methods to initialise..
simply

Code:

h[2][3]=2;

doesn't work