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How to tell if two files are equal. Turn on/off line numbers in source code. Switch to Orginial background IDE or DSP color Comment or reply to this aritlce/tip for discussion. Bookmark this article to my favorite article(s). Print this article
Check if two files are equal. 30-Aug-04
Category
Files Operation
Language
CBuilder All Versions
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Publisher:
Darley, F. Joe
Reference URL:
			1   
2   //---------------------------------------------------------------------------
3   
4   #include <vcl.h>
5   #pragma hdrstop
6   
7   #include "Unit1.h"
8   //---------------------------------------------------------------------------
9   #pragma package(smart_init)
10  #pragma resource "*.dfm"
11  TForm1 *Form1;
12  //---------------------------------------------------------------------------
13  __fastcall TForm1::TForm1(TComponent* Owner)
14          : TForm(Owner)
15  {
16  }
17    //  If you want to find out of 2 files are equal, then you can use this function:
18  
19  bool  TForm1::Are2FilesEqual(const AnsiString fileName1,const AnsiString fileName2)
20  {
21  
22    bool bSame;
23    bSame = false;
24   TMemoryStream  *ms1 = new TMemoryStream();
25   TMemoryStream  *ms2 = new TMemoryStream();
26  
27        ms1->LoadFromFile(fileName1);
28        ms2->LoadFromFile(fileName2);
29  
30        if (ms1->Size == ms2->Size){
31          bSame = CompareMem(ms1->Memory, ms2->Memory, ms1->Size);
32          }
33  
34        ms2->Free();
35        ms1->Free();
36  
37   return bSame;
38  }
39  //---------------------------------------------------------------------------
40  
41  //And you can call it like this
42  void __fastcall TForm1::Button1Click(TObject *Sender)
43  {
44  bool bSame;
45  
46    bSame =Are2FilesEqual("C:\\Test1.txt","C:\\test2.txt");
47    if (bSame==true){
48    ShowMessage("The files are equal");
49    }
50    else{
51    ShowMessage("The files are NOT equal");
52    }
53  }
54  //---------------------------------------------------------------------------


			
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