Dividing error

Hi everyone,

I have the following code which is not working (always gives an output of zero):

Code:

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                                        int len = GetWindowTextLength(GetDlgItem(hwnd, IDC_TEXT2));
                                        int len2 = GetWindowTextLength(GetDlgItem(hwnd, IDC_TEXT4));

                                char* buf;
                                char* buf2;

                                buf = (char*)GlobalAlloc(GPTR, len + 1); //Mass
                                buf2 = (char*)GlobalAlloc(GPTR, len2 + 1); //Radius
                GetDlgItemText(hwnd, IDC_TEXT2, buf, len + 1);
                                GetDlgItemText(hwnd, IDC_TEXT4, buf2, len2 + 1);
                Third=G*atof(buf);
                                Fourth=atof(buf2)*1000;
                                First=Third/Fourth;
                                Second=First/1000;
                char strFirst[100];
                                sprintf_s(strFirst,"%0.2f", Second);
                                SetDlgItemText(hwnd, IDC_TEXT3, strFirst);

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I have noticed that when I change "First=Third/Fourth" to "First=Third*Fourth" it produces a non-zero result. What is the problem with using the "/"?

Thanks.

You are printing second, which works out to mass/(radius*1000000) and that doesn't surprise me that that value is less than 0.005. (Also if you have any int variables you're in trouble there too.)

Ah thanks - I just realised I got my powers wrong (I am using numbers such as 5.97e24 - for some bizarre reason I forgot to include the powers!).