"A little bit of Java, all night long"...

This is a discussion on "A little bit of Java, all night long"... within the Tech Board forums, part of the Community Boards category; Hello, Recently I've been toying with Java, assessing it largely by porting some of my C programs to it. However, ...

  1. #1
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    Red face "A little bit of Java, all night long"...

    Hello,

    Recently I've been toying with Java, assessing it largely by porting some of my C programs to it. However, I've now ran into a little problem, and no matter how many showers I take, I can't get Java off me(!).

    I tried to port a program that deals with Wave files. Of course, all of the multi-byte numbers in it are little endian, but Java's big endian. Fearing that I may be stuck with a little endian for the rest of my life, I tried constructing this function inside my main class:-
    Code:
    public static int reverseInt(int source)
    {
    	int dest;
    
    	dest = ((source & 0xFF000000) >> 24) | ((source & 0xFF0000) >> 8) | ((source & 0xFF00) << 8) | ((source & 0xFF) << 24);
    	return dest;
    }
    This seems to work for all but certain numbers, I get strange results sometimes. As I haven't reinstalled my C compiler yet, I can't wallow in the safety of familiarity, so would anyone care to offer assistance?

  2. #2
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    Have you tried:
    Code:
    	dest = ((source & 0xFF000000) >>> 24) | ((source & 0xFF0000) >>> 8) | ((source & 0xFF00) << 8) | ((source & 0xFF) << 24);

  3. #3
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    Perfect, swoopy. Didn't know about that operator (>>>).

  4. #4
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    SMurf, glad it works. I saw a list of operators at the link below, and thought it was worth trying.

    Operators

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