Made the malloc tests run on Windows

src/test/func/malloc/malloc.cc

@@ -1,6 +1,5 @@
-#include <cerrno>
-#include <malloc.h>
-#include <snmalloc.h>
+#define SNMALLOC_NAME_MANGLE(a) our_##a
+#include "../../../override/malloc.cc"
 
 using namespace snmalloc;
 
@@ -16,13 +15,13 @@ void check_result(size_t size, size_t align, void* p, int err, bool null)
   }
   else
   {
-    if (malloc_usable_size(p) < size)
+    if (our_malloc_usable_size(p) < size)
       abort();
 
     if (((uintptr_t)p % align) != 0)
       abort();
 
-    free(p);
+    our_free(p);
   }
 }
 
@@ -30,7 +29,7 @@ void test_calloc(size_t nmemb, size_t size, int err, bool null)
 {
   fprintf(stderr, "calloc(%d, %d)\n", (int)nmemb, (int)size);
   errno = 0;
-  void* p = calloc(nmemb, size);
+  void* p = our_calloc(nmemb, size);
 
   if ((p != nullptr) && (errno == 0))
   {
@@ -47,7 +46,7 @@ void test_realloc(void* p, size_t size, int err, bool null)
 {
   fprintf(stderr, "realloc(%p(%d), %d)\n", p, int(size), (int)size);
   errno = 0;
-  p = realloc(p, size);
+  p = our_realloc(p, size);
   check_result(size, 1, p, err, null);
 }
 
@@ -55,7 +54,7 @@ void test_posix_memalign(size_t size, size_t align, int err, bool null)
 {
   fprintf(stderr, "posix_memalign(&p, %d, %d)\n", (int)align, (int)size);
   void* p = nullptr;
-  errno = posix_memalign(&p, align, size);
+  errno = our_posix_memalign(&p, align, size);
   check_result(size, align, p, err, null);
 }
 
@@ -63,7 +62,7 @@ void test_memalign(size_t size, size_t align, int err, bool null)
 {
   fprintf(stderr, "memalign(%d, %d)\n", (int)align, (int)size);
   errno = 0;
-  void* p = memalign(align, size);
+  void* p = our_memalign(align, size);
   check_result(size, align, p, err, null);
 }
 
@@ -91,10 +90,10 @@ int main(int argc, char** argv)
     }
     test_calloc(0, size, SUCCESS, false);
 
-    test_realloc(malloc(size), size, SUCCESS, false);
-    test_realloc(malloc(size), 0, SUCCESS, true);
+    test_realloc(our_malloc(size), size, SUCCESS, false);
+    test_realloc(our_malloc(size), 0, SUCCESS, true);
     test_realloc(nullptr, size, SUCCESS, false);
-    test_realloc(malloc(size), (size_t)-1, ENOMEM, true);
+    test_realloc(our_malloc(size), (size_t)-1, ENOMEM, true);
   }
 
   test_posix_memalign(0, 0, EINVAL, true);