sn-evolution: Disable mutation.

[sort-networks.git] / src / sn-evolution.c

diff --git a/src/sn-evolution.c b/src/sn-evolution.c
index 71f0c67..72bd141 100644 (file)
--- a/src/sn-evolution.c
+++ b/src/sn-evolution.c
@@ -23,7 +23,10 @@
 # define _ISOC99_SOURCE
 #endif
 #ifndef _POSIX_C_SOURCE
-# define _POSIX_C_SOURCE 200112L
+# define _POSIX_C_SOURCE 200809L
+#endif
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 700
 #endif
 
 #include <stdlib.h>
@@ -50,10 +53,6 @@
 # define __attribute__(x) /**/
 #endif
 
-/* Yes, this is ugly, but the GNU libc doesn't export it with the above flags.
- * */
-char *strdup (const char *s);
-
 static uint64_t iteration_counter = 0;
 static int inputs_num = 16;
 static int inputs_num_is_power_of_two = 1;
@@ -178,6 +177,7 @@ static int rate_network (const sn_network_t *n)
   return (rate);
 } /* int rate_network */
 
+#if 0
 static int mutate_network (sn_network_t *n)
 {
   sn_network_t *n_copy;
@@ -215,6 +215,7 @@ static int mutate_network (sn_network_t *n)
 
   return (0);
 } /* int mutate_network */
+#endif
 
 static int create_offspring (void)
 {
@@ -253,8 +254,10 @@ static int create_offspring (void)
 
   assert (SN_NETWORK_INPUT_NUM (n) == inputs_num);
 
+#if 0
   if ((SN_NETWORK_INPUT_NUM (n) <= 16) && (sn_bounded_random (0, 100) <= 1))
     mutate_network (n);
+#endif
 
   population_insert (population, n);