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Old October 1st, 2012, 05:39 AM
leopiece leopiece is offline
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C Increment Problem

I guessed how it worked in Visual C++ but didn't understand the operations in case of 1st type output. Help someone!

Code:
 #include <stdio.h>
  int main()
  {
        int i=5;
        printf("%d %d %d %d \n",i,i++,++i,i++);
        printf("%d \n",i);
        return 0;
  }

  /* output in g++ and codeblocks
  8 7 8 5
  8
  
  output in Microsoft Visual C++ 6.0
  6 6 6 5
  8
  
  */

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Old October 1st, 2012, 06:04 AM
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Same test, with a many more compilers

Now learn about multiple side effects and sequence points

If you've got multiple side effects on the same object between sequence points, the code is screwed - period.

You can analyse it all you want, but it is a pointless exercise. You won't learn anything useful that you can apply in any other programming problem.
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