Counter: Fix segfault on 64-bit machines when calling .get_value() on a little-endian counter

.get_value() iterates throught the bytes from left-to-right (increment = 1)
for big-endian counters, and right-to-left (increment = -1) for little-endian
counters.  Since we had declared the "increment" variable as "unsigned int",
we instead were adding 2^32-1 to a pointer.  This achieved the desired result
on 32-bit machines, where pointers are also 32 bits, but caused a crash on
64-bit machines.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/_counter.c b/src/_counter.c
index 91d0316..1aaafee 100644
--- a/src/_counter.c
+++ b/src/_counter.c
@@ -127,7 +127,8 @@ CounterObject_dealloc(PCT_CounterObject *self)
 static inline PyObject *
 _CounterObject_next_value(PCT_CounterObject *self, int little_endian)
 {
-    unsigned int i, increment;
+    unsigned int i;
+    int increment;
     uint8_t *p;
     PyObject *eight = NULL;
     PyObject *ch = NULL;