[PATCH] strvec: use size_t to store nr and alloc

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We converted argv_array (which later became strvec) to use size_t in
819f0e76b1 (argv-array: use size_t for count and alloc, 2020-07-28) in
order to avoid the possibility of integer overflow. But later, commit
d70a9eb611 (strvec: rename struct fields, 2020-07-28) accidentally
converted these back to ints!

Those two commits were part of the same patch series. I'm pretty sure
what happened is that they were originally written in the opposite order
and then cleaned up and re-ordered during an interactive rebase. And
when resolving the inevitable conflict, I mistakenly took the "rename"
patch completely, accidentally dropping the type change.

We can correct it now; better late than never.

Signed-off-by: Jeff King <peff@xxxxxxxx>
---
This was posted previously in the midst of another thread, but I don't
think was picked up. There was some positive reaction, but one "do we
really need this?" to which I responded in detail:

  https://lore.kernel.org/git/YTIBnT8Ue1HZXs82@xxxxxxxxxxxxxxxxxxxxxxx/

I don't really think any of that needs to go into the commit message,
but if that's a hold-up, I can try to summarize it (though I think
referring to the commit which _already_ did this and was accidentally
reverted would be sufficient).

 strvec.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/strvec.h b/strvec.h
index fdcad75b45..6b3cbd6758 100644
--- a/strvec.h
+++ b/strvec.h
@@ -29,8 +29,8 @@ extern const char *empty_strvec[];
  */
 struct strvec {
 	const char **v;
-	int nr;
-	int alloc;
+	size_t nr;
+	size_t alloc;
 };
 
 #define STRVEC_INIT { empty_strvec, 0, 0 }
-- 
2.33.0.811.g40f7f3a89c



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