Be explicit about the sign of defined integer constants

2 files changed, 6 insertions, 6 deletions

diff --git a/test/bitset_test.c b/test/bitset_test.c
index dda59d3..27f1d2d 100644
--- a/test/bitset_test.c
+++ b/test/bitset_test.c
@@ -21,7 +21,7 @@
 #include <stdarg.h>
 #include <stdio.h>
 
-#define N_BITS 256
+#define N_BITS 256u
 #define N_ELEMS (ZIX_BITSET_ELEMS(N_BITS))
 
 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
diff --git a/test/ring_test.c b/test/ring_test.c
index 7616346..c11d998 100644
--- a/test/ring_test.c
+++ b/test/ring_test.c
@@ -25,7 +25,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#define MSG_SIZE 20
+#define MSG_SIZE 20u
 
 static ZixRing* ring       = 0;
 static unsigned n_writes   = 0;
@@ -46,7 +46,7 @@ failure(const char* fmt, ...)
 static int
 gen_msg(int* msg, int start)
 {
-  for (int i = 0; i < MSG_SIZE; ++i) {
+  for (unsigned i = 0u; i < MSG_SIZE; ++i) {
     msg[i] = start;
     start  = (start + 1) % INT_MAX;
   }
@@ -56,9 +56,9 @@ gen_msg(int* msg, int start)
 static int
 cmp_msg(int* msg1, int* msg2)
 {
-  for (int i = 0; i < MSG_SIZE; ++i) {
+  for (unsigned i = 0u; i < MSG_SIZE; ++i) {
     if (msg1[i] != msg2[i]) {
-      return !failure("%d != %d @ %d\n", msg1[i], msg2[i], i);
+      return !failure("%d != %d @ %u\n", msg1[i], msg2[i], i);
     }
   }
 
@@ -131,7 +131,7 @@ main(int argc, char** argv)
 
   zix_ring_free(NULL);
 
-  printf("Testing %u writes of %d ints to a %u int ring...\n",
+  printf("Testing %u writes of %u ints to a %u int ring...\n",
          n_writes,
          MSG_SIZE,
          size);