1 files changed, 22 insertions, 0 deletions
diff --git a/StdLib/Include/X64/machine/limits.h b/StdLib/Include/X64/machine/limits.h
index 663b2e3290..d046c64dab 100644
--- a/StdLib/Include/X64/machine/limits.h
+++ b/StdLib/Include/X64/machine/limits.h
@@ -1,3 +1,25 @@
 #include  <x86/limits.h>
 
 #define __POINTER_BIT   64
+
+#if defined(__GNUC__)
+#define __LONG_BIT      64
+/** minimum value for an object of type long int **/
+#define __LONG_MIN    (-9223372036854775807L - 1L) // -(2^63 - 1)
+
+/** maximum value for an object of type long int **/
+#define __LONG_MAX    +9223372036854775807L // 2^63 - 1
+
+/** maximum value for an object of type unsigned long int **/
+#define __ULONG_MAX   0xFFFFFFFFFFFFFFFFUL // 2^64 - 1
+#else
+#define __LONG_BIT      32
+/** minimum value for an object of type long int **/
+#define __LONG_MIN    (-2147483647L - 1L) // -(2^31 - 1)
+
+/** maximum value for an object of type long int **/
+#define __LONG_MAX    +2147483647L // 2^31 - 1
+
+/** maximum value for an object of type unsigned long int **/
+#define __ULONG_MAX   0xffffffff // 2^32 - 1
+#endif