commit 0e557facb93425e791a23a6695b202e467a60026
author stijn <stinos@zoho.com> Thu Oct 30 14:39:22 2014 +0100
committer Damien George <damien.p.george@gmail.com> Thu Oct 30 23:00:24 2014 +0000
tree 676380dea63edff840b6f6345466394478171255
parent e62a0fe36776f039149e7fab77323aa380b97c2e

mpz: Fix 64bit msvc build

msvc does not treat 1L a 64bit integer hence all occurences of shifting it left or right
result in undefined behaviour since the maximum allowed shift count for 32bit ints is 31.
Forcing the correct type explicitely, stored in MPZ_LONG_1, solves this.

py/objint_mpz.c

diff --git a/py/objint_mpz.c b/py/objint_mpz.c
index b75cc8c..7eff54c 100644
--- a/py/objint_mpz.c
+++ b/py/objint_mpz.c
@@ -45,7 +45,7 @@
 
 #if MICROPY_PY_SYS_MAXSIZE
 // Export value for sys.maxsize
-#define DIG_MASK ((1L << MPZ_DIG_SIZE) - 1)
+#define DIG_MASK ((MPZ_LONG_1 << MPZ_DIG_SIZE) - 1)
 STATIC const mpz_dig_t maxsize_dig[MPZ_NUM_DIG_FOR_INT] = {
     (MP_SSIZE_MAX >> MPZ_DIG_SIZE * 0) & DIG_MASK,
     #if (MP_SSIZE_MAX >> MPZ_DIG_SIZE * 0) > DIG_MASK