Add some sanity checks for allocator in 64 bit mode.

2010-01-18 01:32:33 +01:00
parent 32969abe40
commit 4e39597ba6
4 changed files with 8 additions and 1 deletions
--- a/src/lj_def.h
+++ b/src/lj_def.h
@@ -89,6 +89,7 @@ typedef unsigned __int32 uintptr_t;
 #define checku8(x)	((x) == (int32_t)(uint8_t)(x))
 #define checki16(x)	((x) == (int32_t)(int16_t)(x))
 #define checku16(x)	((x) == (int32_t)(uint16_t)(x))
+#define checkptr32(x)	((uintptr_t)(x) == (uint32_t)(uintptr_t)(x))

 /* Every half-decent C compiler transforms this into a rotate instruction. */
 #define lj_rol(x, n)	(((x)<<(n)) | ((x)>>(32-(n))))