Corrected the missing inclusion of <string.h> in random.h that is needed for memcpy().

examples/main.c

@@ -1099,7 +1099,6 @@ int main(int argc, char *argv[]) {
   if (s.periodic) gravity_exact_force_ewald_init(e.s->dim[0]);
 #endif
 
-
   if (!restart) {
 
 #ifdef WITH_MPI

src/random.h

@@ -24,8 +24,13 @@
 #include "../config.h"
 
 /* Standard header */
+#include <errno.h>
+#include <ieee754.h>
+#include <limits.h>
 #include <stdint.h>
 #include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
 
 /**
  * @brief The categories of random number generated.
@@ -50,11 +55,6 @@ enum random_number_type {
   random_number_BH_swallow = 4947009007LL
 };
 
-#include <errno.h>
-#include <ieee754.h>
-#include <limits.h>
-#include <sys/types.h>
-
 /* Inline the default RNG functions to avoid costly function calls. These
    functions are minor modifications, but functional equivalents, of their glibc
    counterparts. */