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[vox-tech] latex help: drawing arrows
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[vox-tech] latex help: drawing arrows


i'd like to draw a program execution chart, like this:

   #include <stdio.h>
   void swap(int *a, int *b);

   int main(void)
      int x = 3;
      int y = 4;
      printf("x: %d, y: %d\n", x, y);
      swap(&x, &y);
      printf("x: %d, y: %d\n", x, y);
      return 0;

   void swap(int *a, int *b)
      int c = *a;
      *a = *b;
      *b = c;

but with a curved arrow that points from line 1 to line 2.  and then
another line that points from line 2 to line 3.  and then line 3 to line
4.  and so on.

basically, the arrows will show the order in which statements get

i'm thumbing through the latex graphics companion, and it looks like
either the pstricks or metafont/metapost package seems the best way to
go.  i don't know either one (yet) and they both look pretty difficult
to learn.

can i get some advice?  what's the easiest way to do something like


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