Fix build - 64 bit functions do not exist
diff --git a/include/vk_mem_alloc.h b/include/vk_mem_alloc.h
index 97e321c..7544c53 100644
--- a/include/vk_mem_alloc.h
+++ b/include/vk_mem_alloc.h
@@ -3074,7 +3074,7 @@
static inline uint8_t VmaBitScanLSB(uint64_t mask)
{
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && defined(_WIN64)
unsigned long pos;
if (_BitScanForward64(&pos, mask))
return static_cast<uint8_t>(pos);
@@ -3108,7 +3108,7 @@
static inline uint8_t VmaBitScanMSB(uint64_t mask)
{
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && defined(_WIN64)
unsigned long pos;
if (_BitScanReverse64(&pos, mask))
return static_cast<uint8_t>(pos);