File comparaison works on win32, not on unix solaris

Question

Hi all!
I have the following code comparing 2 files. It works on win2000 but doesnt work on unix solaris.
     private boolean fichierIdentiqueBytePourByte( InputStream in1, InputStream in2 ) throws IOException{
          int a = 0, b = 0;
          while(true){
            // read next byte from both stream
            a = in1.read();
            b = in2.read();
            // if its different then files are different and we are done
            if (a!=b) return false;
            // if both are at eof then all checked must be the same
            if (a==-1&&b==-1) return true;
            // if either are at eof then they are different sizes
            if (a==-1||b==-1) return false;
     }any ideas of what the problem might be?
Thanks

Answer 1

418nic wrote:
Hi all!
I have the following code comparing 2 files. It works on win2000 but doesnt work on unix solaris.
     private boolean fichierIdentiqueBytePourByte( InputStream in1, InputStream in2 ) throws IOException{
          int a = 0, b = 0;
          while(true){
// read next byte from both stream
a = in1.read();
b = in2.read();
// if its different then files are different and we are done
if (a!=b) return false;
// if both are at eof then all checked must be the same
if (a==-1&&b==-1) return true;
// if either are at eof then they are different sizes
if (a==-1||b==-1) return false;
     }any ideas of what the problem might be?
ThanksWell, from your code, you only have two traits that this depends on to work--comparing int's and EOF. You have hard coded a -1 for EOF into this, I am not completely familiar with EOF condition on different platforms, but I know int's compare without error on every platform. Do a debug and a breakpoint set to stop just before you think you're going to get an EOF and I think you'll see, that the EOF you are using is the actual problem.