widen size-type variables in pack/unpack

Most size-type variables in pp_pack.c were of type I32, with a
smattering of other types.  Use SSize_t in place of I32, and generally
use size_t-width variables as appropriate.  Fixes [perl #119367].

1 files changed, 1 insertions, 1 deletions

diff --git a/mathoms.c b/mathoms.c
index 66f2cc3768..295d8c4ea9 100644
--- a/mathoms.c
+++ b/mathoms.c
@@ -819,7 +819,7 @@ C<unpackstring> instead.
 
 =cut */
 
-I32
+SSize_t
 Perl_unpack_str(pTHX_ const char *pat, const char *patend, const char *s,
 		const char *strbeg, const char *strend, char **new_s, I32 ocnt,
 		U32 flags)