Update examples to remove warnings with assertion disabled.

example/ex-algo03.c

@@ -23,7 +23,7 @@ ARRAY_DEF(vector_int, int)
 
 int main(void)
 {
-  int s;
+  int s = 0;
   // Init keys as a vector_int_t, initialize it (and prepare its destruction)
   M_LET(keys, vector_int_t)
     // Initialize m as a dictionnary and initialize it with the given database

example/ex-algo04.c

@@ -19,7 +19,7 @@ int main(void)
   M_LET(s, string_t)
     // Let v be a vector of integer and initialize it.
     M_LET( (v, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10), vector_int_t) {
-    int sum, product;
+    int sum = 0, product = 0;
     
     // Compute the sum of theses integers.
     ALGO_REDUCE(sum, v, vector_int_t, add);

example/ex-array00.c

@@ -231,7 +231,7 @@ test_cstring(int n)
 
   r_cstring_init(array);
   for(int i = 0; i < n; i++) {
-    char buffer[10];
+    char buffer[16];
     // Create a string from the integer
     sprintf(buffer, "%d", i);
     // We need to make an explicit copy of the string
@@ -612,7 +612,7 @@ int main (int argc, const char *argv[])
   s = test_rockme3(n);
   printf ("S[rockme3] = %d\n", s);
 
-  s = test_rockme3(n);
+  s = test_rockme4(n);
   printf ("S[rockme4] = %d\n", s);
 
   exit(0);

example/ex-dict02.c

@@ -14,7 +14,7 @@ int main(void) {
   dict_m32_set_at (h, 5, 10);               // h[5] = 10
   char *k = dict_m32_get(h, 10);            // No 10 in h, so k == NULL
   int is_missing = (k != NULL);             // true
-  assert (is_missing);
+  assert (is_missing); (void) is_missing;
   dict_m32_erase(h, 5);                    // h is now empty
   dict_m32_it_t it;                         // iterate over all dictionnary
   for (dict_m32_it (it, h) ; !dict_m32_end_p (it); dict_m32_next(it)) {