diff --git a/Tests/TypeSize.cpp b/Tests/TypeSize.cpp
new file mode 100644
index 0000000..ede5f14
--- /dev/null
+++ b/Tests/TypeSize.cpp
@@ -0,0 +1,106 @@
+#ifdef DEBUG
+
+#include <debug.h>
+
+__constructor void TestTypeSize()
+{
+    debug("--- INT TYPES ---");
+    debug("sizeof(__INT8_TYPE__) = %lld", sizeof(__INT8_TYPE__));
+    debug("sizeof(__INT16_TYPE__) = %lld", sizeof(__INT16_TYPE__));
+    debug("sizeof(__INT32_TYPE__) = %lld", sizeof(__INT32_TYPE__));
+    debug("sizeof(__INT64_TYPE__) = %lld", sizeof(__INT64_TYPE__));
+
+    debug("-- UINT TYPES ---");
+    debug("sizeof(__UINT8_TYPE__) = %lld", sizeof(__INT8_TYPE__));
+    debug("sizeof(__UINT16_TYPE__) = %lld", sizeof(__INT16_TYPE__));
+    debug("sizeof(__UINT32_TYPE__) = %lld", sizeof(__INT32_TYPE__));
+    debug("sizeof(__UINT64_TYPE__) = %lld", sizeof(__INT64_TYPE__));
+
+    debug("--- INT LEAST TYPES ---");
+    debug("sizeof(__INT_LEAST8_TYPE__) = %lld", sizeof(__INT_LEAST8_TYPE__));
+    debug("sizeof(__INT_LEAST16_TYPE__) = %lld", sizeof(__INT_LEAST16_TYPE__));
+    debug("sizeof(__INT_LEAST32_TYPE__) = %lld", sizeof(__INT_LEAST32_TYPE__));
+    debug("sizeof(__INT_LEAST64_TYPE__) = %lld", sizeof(__INT_LEAST64_TYPE__));
+
+    debug("--- UINT LEAST TYPES ---");
+    debug("sizeof(__UINT_LEAST8_TYPE__) = %lld", sizeof(__UINT_LEAST8_TYPE__));
+    debug("sizeof(__UINT_LEAST16_TYPE__) = %lld", sizeof(__UINT_LEAST16_TYPE__));
+    debug("sizeof(__UINT_LEAST32_TYPE__) = %lld", sizeof(__UINT_LEAST32_TYPE__));
+    debug("sizeof(__UINT_LEAST64_TYPE__) = %lld", sizeof(__UINT_LEAST64_TYPE__));
+
+    debug("--- INT FAST TYPES ---");
+    debug("sizeof(__INT_FAST8_TYPE__) = %lld", sizeof(__INT_FAST8_TYPE__));
+    debug("sizeof(__INT_FAST16_TYPE__) = %lld", sizeof(__INT_FAST16_TYPE__));
+    debug("sizeof(__INT_FAST32_TYPE__) = %lld", sizeof(__INT_FAST32_TYPE__));
+    debug("sizeof(__INT_FAST64_TYPE__) = %lld", sizeof(__INT_FAST64_TYPE__));
+
+    debug("--- UINT FAST TYPES ---");
+    debug("sizeof(__UINT_FAST8_TYPE__) = %lld", sizeof(__UINT_FAST8_TYPE__));
+    debug("sizeof(__UINT_FAST16_TYPE__) = %lld", sizeof(__UINT_FAST16_TYPE__));
+    debug("sizeof(__UINT_FAST32_TYPE__) = %lld", sizeof(__UINT_FAST32_TYPE__));
+    debug("sizeof(__UINT_FAST64_TYPE__) = %lld", sizeof(__UINT_FAST64_TYPE__));
+
+    debug("--- INTPTR TYPES ---");
+    debug("sizeof(__INTPTR_TYPE__) = %lld", sizeof(__INTPTR_TYPE__));
+    debug("sizeof(__UINTPTR_TYPE__) = %lld", sizeof(__UINTPTR_TYPE__));
+
+    debug("--- OTHER TYPES ---");
+    debug("sizeof(__PTRDIFF_TYPE__) = %lld", sizeof(__PTRDIFF_TYPE__));
+    debug("sizeof(__SIZE_TYPE__) = %lld", sizeof(__SIZE_TYPE__));
+    debug("sizeof(__WCHAR_TYPE__) = %lld", sizeof(__WCHAR_TYPE__));
+    debug("sizeof(__WINT_TYPE__) = %lld", sizeof(__WINT_TYPE__));
+    debug("sizeof(__SIG_ATOMIC_TYPE__) = %lld", sizeof(__SIG_ATOMIC_TYPE__));
+
+    debug("--- INTX MAX TYPES ---");
+    debug("sizeof(__INT8_MAX__) = %#llx", sizeof(__INT8_MAX__));
+    debug("sizeof(__INT16_MAX__) = %#llx", sizeof(__INT16_MAX__));
+    debug("sizeof(__INT32_MAX__) = %#llx", sizeof(__INT32_MAX__));
+    debug("sizeof(__INT64_MAX__) = %#llx", sizeof(__INT64_MAX__));
+
+    debug("--- UINTX MAX TYPES ---");
+    debug("__UINT8_MAX__ = %#llx", __UINT8_MAX__);
+    debug("__UINT16_MAX__ = %#llx", __UINT16_MAX__);
+    debug("__UINT32_MAX__ = %#llx", __UINT32_MAX__);
+    debug("__UINT64_MAX__ = %#llx", __UINT64_MAX__);
+
+    // debug("--- INTMAX TYPES ---");
+    // debug("__INTMAX_TYPE__ = %#llx", __INTMAX_TYPE__);
+    // debug("__UINTMAX_TYPE__ = %#llx", __UINTMAX_TYPE__);
+
+    debug("--- INTLEASTX MAX ---");
+    debug("__INT_LEAST8_MAX__ = %#llx", __INT_LEAST8_MAX__);
+    debug("__INT_LEAST16_MAX__ = %#llx", __INT_LEAST16_MAX__);
+    debug("__INT_LEAST32_MAX__ = %#llx", __INT_LEAST32_MAX__);
+    debug("__INT_LEAST64_MAX__ = %#llx", __INT_LEAST64_MAX__);
+
+    debug("--- UINTLEASTX MAX ---");
+    debug("__UINT_LEAST8_MAX__ = %#llx", __UINT_LEAST8_MAX__);
+    debug("__UINT_LEAST16_MAX__ = %#llx", __UINT_LEAST16_MAX__);
+
+    debug("--- INTFASTX MAX ---");
+    debug("__INT_FAST8_MAX__ = %#llx", __INT_FAST8_MAX__);
+    debug("__INT_FAST16_MAX__ = %#llx", __INT_FAST16_MAX__);
+    debug("__INT_FAST32_MAX__ = %#llx", __INT_FAST32_MAX__);
+    debug("__INT_FAST64_MAX__ = %#llx", __INT_FAST64_MAX__);
+
+    debug("--- UINTFASTX MAX ---");
+    debug("__UINT_FAST8_MAX__ = %#llx", __UINT_FAST8_MAX__);
+    debug("__UINT_FAST16_MAX__ = %#llx", __UINT_FAST16_MAX__);
+    debug("__UINT_FAST32_MAX__ = %#llx", __UINT_FAST32_MAX__);
+    debug("__UINT_FAST64_MAX__ = %#llx", __UINT_FAST64_MAX__);
+
+    debug("--- INTPTR MAX ---");
+    debug("__INTPTR_MAX__ = %#llx", __INTPTR_MAX__);
+    debug("__UINTPTR_MAX__ = %#llx", __UINTPTR_MAX__);
+
+    debug("--- OTHER MAX ---");
+    debug("__PTRDIFF_MAX__ = %#llx", __PTRDIFF_MAX__);
+    debug("__SIZE_MAX__ = %#llx", __SIZE_MAX__);
+    debug("__WCHAR_MAX__ = %#llx", __WCHAR_MAX__);
+    debug("__WINT_MAX__ = %#llx", __WINT_MAX__);
+    debug("__SIG_ATOMIC_MAX__ = %#llx", __SIG_ATOMIC_MAX__);
+    debug("__INTMAX_MAX__ = %#llx", __INTMAX_MAX__);
+    debug("__UINTMAX_MAX__ = %#llx", __UINTMAX_MAX__);
+}
+
+#endif