From 6219b2de00aedf24a9b8d12000ecb91b1b5aa602 Mon Sep 17 00:00:00 2001
From: Christian Jullien <jullien@eligis.com>
Date: Fri, 11 Nov 2022 07:12:49 +0100
Subject: [PATCH] Add tests on Windows for strtoll and strtoull. Tests can
 probably be used on all systems.

---
 tests/tests2/119_random_stuff.c | 39 +++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/tests/tests2/119_random_stuff.c b/tests/tests2/119_random_stuff.c
index 95097b82..cbeeaa86 100644
--- a/tests/tests2/119_random_stuff.c
+++ b/tests/tests2/119_random_stuff.c
@@ -1,4 +1,15 @@
+#if defined(_WIN32)
+/*
+ * strtoll and strtoull require the following define.
+ * Not really needed in our case
+ */
+ #if !defined(_ISOC99_SOURCE)
+  #define _ISOC99_SOURCE 1
+ #endif
+#endif
+
 #include <stdio.h>
+#include <stdlib.h>
 
 struct big_struct { char a[262144]; };
 
@@ -88,6 +99,33 @@ void tst_cast(void)
   printf ("schar to ushort cast: %x\n", r);
 }
 
+void tst_strtoll_strtoull(void)
+{
+  /*
+   * It probably makes sense to run this test on all systems,
+   * not just on Windows.
+   */
+#if defined(_WIN32)
+  const unsigned int shift = 32;
+
+  {
+    long long x = strtoll("0x100000000", NULL, 0);
+    x = (x >> shift);
+    if (x != 1LL) {
+      printf("Windows: strtoll error\n");
+    }
+  }
+
+  {
+    unsigned long long x = strtoll("0x100000000", NULL, 0);
+    x = (x >> shift);
+    if (x != 1) {
+      printf ("Windows: strtoull error\n");
+    }
+  }
+#endif
+}
+
 int
 main (void)
 {
@@ -105,4 +143,5 @@ main (void)
   tst_compare();
   tst_pack();
   tst_cast();
+  tst_strtoll_strtoull();
 }