nwnss: add seedRandQuad runtime wrapper

src/nwnss/library/misc/rand.c

@@ -64,6 +64,11 @@ void srandQuad(QUAD seed)
     haveRandState = 1;
 }
 
+void seedRandQuad(SQUAD seed)
+{
+    srandQuad((QUAD)seed);
+}
+
 SQUAD randQuad(void)
 {
     nwnssRandEnsureSeeded();

tests/nwnss/rand/test_nwnss_rand.c

@@ -1,3 +1,4 @@
+#include <library/omni.h>
 #include <library/rand.h>
 #include <library/xStdlib.h>
 
@@ -44,6 +45,31 @@ static int check_repeatable_quad_seed(void)
   return 0;
 }
 
+static int check_seed_rand_quad_wrapper(void)
+{
+  SQUAD seq_a[3];
+  SQUAD seq_b[3];
+  int i;
+
+  srandQuad(0x123456789abcdef0LL);
+  for (i = 0; i < 3; ++i)
+    seq_a[i] = randQuad();
+
+  seedRandQuad(0x123456789abcdef0LL);
+  for (i = 0; i < 3; ++i)
+    seq_b[i] = randQuad();
+
+  for (i = 0; i < 3; ++i)
+    CHECK(seq_a[i] == seq_b[i]);
+
+  seedRandQuad(-1LL);
+  seq_a[0] = randQuad();
+  seedRandQuad(-1LL);
+  CHECK(randQuad() == seq_a[0]);
+
+  return 0;
+}
+
 static int check_repeatable_rnd_quad_seed(void)
 {
   SQUAD seq_a[3];
@@ -170,6 +196,7 @@ static int check_stdlib_rand_wrappers(void)
 int main(void)
 {
   CHECK(check_repeatable_quad_seed() == 0);
+  CHECK(check_seed_rand_quad_wrapper() == 0);
   CHECK(check_repeatable_rnd_quad_seed() == 0);
   CHECK(check_repeatable_long_seed() == 0);
   CHECK(check_chi_square() == 0);