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authorMark Dickinson <dickinsm@gmail.com>2009-03-18 20:06:12 (GMT)
committerMark Dickinson <dickinsm@gmail.com>2009-03-18 20:06:12 (GMT)
commitbd7926478de92a2a0ef4440e1a9ae61b706a80d2 (patch)
treef92ef0133e96195e1875cc74b046474aeb7be155 /PC
parente7f45b8e5948d7367c3754b0506b082d1296138f (diff)
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Issue #4258: Make it possible to use 30-bit digits for PyLongs:
- new configure option --enable-big-digits - new structseq sys.int_info giving information about the internal format By default, 30-bit digits are enabled on 64-bit machines but disabled on 32-bit machines.
Diffstat (limited to 'PC')
-rw-r--r--PC/pyconfig.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/PC/pyconfig.h b/PC/pyconfig.h
index d110476..04abc1f 100644
--- a/PC/pyconfig.h
+++ b/PC/pyconfig.h
@@ -396,6 +396,42 @@ Py_NO_ENABLE_SHARED to find out. Also support MS_NO_COREDLL for b/w compat */
#endif
+/* define signed and unsigned exact-width 32-bit and 64-bit types, used in the
+ implementation of Python long integers. */
+#ifndef PY_UINT32_T
+#if SIZEOF_INT == 4
+#define HAVE_UINT32_T 1
+#define PY_UINT32_T unsigned int
+#elif SIZEOF_LONG == 4
+#define HAVE_UINT32_T 1
+#define PY_UINT32_T unsigned long
+#endif
+#endif
+
+#ifndef PY_UINT64_T
+#if SIZEOF_LONG_LONG == 8
+#define HAVE_UINT64_T 1
+#define PY_UINT64_T unsigned PY_LONG_LONG
+#endif
+#endif
+
+#ifndef PY_INT32_T
+#if SIZEOF_INT == 4
+#define HAVE_INT32_T 1
+#define PY_INT32_T int
+#elif SIZEOF_LONG == 4
+#define HAVE_INT32_T 1
+#define PY_INT32_T long
+#endif
+#endif
+
+#ifndef PY_INT64_T
+#if SIZEOF_LONG_LONG == 8
+#define HAVE_INT64_T 1
+#define PY_INT64_T PY_LONG_LONG
+#endif
+#endif
+
/* Fairly standard from here! */
/* Define to 1 if you have the `copysign' function. */