From df126bcba60cbcc7c9afb75196370e0a2b127fc2 Mon Sep 17 00:00:00 2001
From: Jean-Pierre PRUNARET <jean-pierre+git@prunetwork.fr>
Date: Thu, 19 Jan 2017 17:37:26 +0100
Subject: [PATCH] ajout d'un programme c simple pour renvoyer 0 ou 1 en valeur
 de retour

---
 rand/Makefile |  6 ++++++
 rand/main.c   | 31 +++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 rand/Makefile
 create mode 100644 rand/main.c

diff --git a/rand/Makefile b/rand/Makefile
new file mode 100644
index 0000000..109f0df
--- /dev/null
+++ b/rand/Makefile
@@ -0,0 +1,6 @@
+all: build
+
+build: random
+
+random: main.c
+	gcc main.c -Wall -o random
diff --git a/rand/main.c b/rand/main.c
new file mode 100644
index 0000000..7d59ee1
--- /dev/null
+++ b/rand/main.c
@@ -0,0 +1,31 @@
+#include <time.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+/**
+ * Return a random number between 0 and limit inclusive.
+ *
+ */
+int rand_lim(int limit) {
+
+    int divisor = RAND_MAX/(limit+1);
+    int retval;
+
+    do { 
+        retval = rand() / divisor;
+    } while (retval > limit);
+
+    return retval;
+}
+
+int main(int argc, char **argv) {
+    srand(time(NULL));
+
+    int random_value = rand_lim(1);
+
+    printf("value: %d\n", random_value);
+
+    //return rand_lim(1);
+    return random_value;
+};
+