1 files changed, 4 insertions, 1 deletions
diff --git a/lib/scalaires.c b/lib/scalaires.c
index b0e9396..7240543 100644
--- a/lib/scalaires.c
+++ b/lib/scalaires.c
@@ -158,7 +158,10 @@ rationnel rat_pow(rationnel rat, unsigned int p)
 {				/*
 				 * puissance 
 				 */
-    for (; p; p--) {
+    if (p == 0) {
+	    return rat_constr(1, 1);
+    }
+    for (p--; p; p--) {
 	rat = rat_multiplication(rat, rat);
     }
     return rat;