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Remove superfluous casts

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-  Every non-const pointer converts automatically to void *.
-  Every pointer converts automatically to void *.
-  void * converts to any other pointer.
-  const void * converts to any other const pointer.
-  Integer variables convert to each other.

I changed the declaration of a few variables in order to allow removing
a cast.

However, I didn't attempt to edit casts inside comparisons, since they
are very delicate.  I also kept casts in variadic functions, since they
are necessary, and in allocation functions, because I have other plans
for them.

I also changed a few casts to int that are better as ptrdiff_t.

This change has triggered some warnings about const correctness issues,
which have also been fixed in this patch (see for example src/login.c).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
This commit is contained in:
Alejandro Colomar
2023-02-01 13:50:48 +01:00
committed by Serge Hallyn
parent 66daa74232
commit bddcd9b095
62 changed files with 260 additions and 319 deletions
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13
lib/subordinateio.c
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@ -355,13 +355,14 @@ static int subordinate_range_cmp (const void *p1, const void *p2)
{
struct subordinate_range *range1, *range2;
if ((*(struct commonio_entry **) p1)->eptr == NULL)
return 1;
if ((*(struct commonio_entry **) p2)->eptr == NULL)
return -1;
range1 = ((struct subordinate_range *) (*(struct commonio_entry **) p1)->eptr);
range2 = ((struct subordinate_range *) (*(struct commonio_entry **) p2)->eptr);
range1 = (*(struct commonio_entry **) p1)->eptr;
if (range1 == NULL)
return 1;
range2 = (*(struct commonio_entry **) p2)->eptr;
if (range2 == NULL)
return -1;
if (range1->start < range2->start)
return -1;