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[PATCH 1/2] * console-client/xkb/kstoucs.c (find_ucs): assert preconditi
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From: |
Diego Nieto Cid |
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Subject: |
[PATCH 1/2] * console-client/xkb/kstoucs.c (find_ucs): assert precondition. |
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Date: |
Thu, 4 Jun 2015 22:58:09 -0300 |
---
console-client/xkb/kstoucs.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/console-client/xkb/kstoucs.c b/console-client/xkb/kstoucs.c
index 8471e94..fb62445 100644
--- a/console-client/xkb/kstoucs.c
+++ b/console-client/xkb/kstoucs.c
@@ -1,3 +1,5 @@
+#include <assert.h>
+
struct ksmap {
int keysym;
unsigned int ucs;
@@ -11,6 +13,8 @@ find_ucs (int keysym, struct ksmap *first, struct ksmap *last)
{
struct ksmap *middle = first + (last - first) / 2;
+ assert (first <= last);
+
if (middle->keysym == keysym)
return middle->ucs; /* base case: needle found. */
else if (first == last /* empty search space */
--
2.1.4