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-rw-r--r--Modules/rotormodule.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/Modules/rotormodule.c b/Modules/rotormodule.c
index 3d570f7751..d63ad74c23 100644
--- a/Modules/rotormodule.c
+++ b/Modules/rotormodule.c
@@ -147,8 +147,8 @@ set_key(r, key)
char *key;
{
unsigned long k1=995, k2=576, k3=767, k4=671, k5=463;
- int i;
- int len = strlen(key);
+ size_t i;
+ size_t len = strlen(key);
for (i = 0; i < len; i++) {
unsigned short ki = Py_CHARMASK(key[i]);