exo1: swap, no need to declare tmp variable if values are the same

Signed-off-by: Jérôme Benoit <jerome.benoit@piment-noir.org>

diff --git a/exo1/exo1.c b/exo1/exo1.c
index 11fc1fb3cf72e7a0756f5a69a558296bb1aec6b7..822d73ff169a2fe9b8985e4a9eb58b3f93fe1f02 100644 (file)
--- a/exo1/exo1.c
+++ b/exo1/exo1.c
@@ -16,8 +16,8 @@ void xorSwap (int *v1, int *v2) {
 }
 
 void swap(int* v1, int* v2) {
-    int tmp = *v1;
     if (v1 != v2) {
+        int tmp = *v1;
         *v1 = *v2;
         *v2 = tmp;
     }