Merged revisions 59245-59254 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r59245 | georg.brandl | 2007-11-30 23:04:45 +0100 (Fri, 30 Nov 2007) | 2 lines

  Move lchmod() docs to correct place, and add versionadded tags.
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  r59249 | christian.heimes | 2007-11-30 23:36:10 +0100 (Fri, 30 Nov 2007) | 2 lines

  Backport of -r59242:59246 from py3k
  Fixed problem with regrtest caused by the additional of objects to _abcoll.
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  r59253 | christian.heimes | 2007-12-01 02:03:20 +0100 (Sat, 01 Dec 2007) | 1 line

  Although pyconfig.h claims that WIN32 is obsolete it is still required for the locale module. locale.getdefaultlocale() fails silently w/o the WIN32 macro.
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  r59254 | christian.heimes | 2007-12-01 12:20:10 +0100 (Sat, 01 Dec 2007) | 3 lines

  Feature #1534
  Added PyFloat_GetMax(), PyFloat_GetMin() and PyFloat_GetInfo() to the float API.
  Added a dictionary sys.float_info with information about the internal floating point type to the sys module.
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1 files changed, 47 insertions, 0 deletions

diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index 3ef44f6..d3b7c9e 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -9,6 +9,7 @@
 #include "formatter_unicode.h"
 
 #include <ctype.h>
+#include <float.h>
 
 #if !defined(__STDC__)
 extern double fmod(double, double);
@@ -48,6 +49,52 @@ fill_free_list(void)
 	return p + N_FLOATOBJECTS - 1;
 }
 
+double
+PyFloat_GetMax(void)
+{
+	return DBL_MAX;
+}
+
+double
+PyFloat_GetMin(void)
+{
+	return DBL_MIN;
+}
+
+PyObject *
+PyFloat_GetInfo(void)
+{
+	PyObject *d, *tmp;
+
+#define SET_FLOAT_CONST(d, key, const) \
+	tmp = PyFloat_FromDouble(const); \
+	if (tmp == NULL) return NULL; \
+	if (PyDict_SetItemString(d, key, tmp)) return NULL; \
+	Py_DECREF(tmp)
+#define SET_INT_CONST(d, key, const) \
+	tmp = PyInt_FromLong(const); \
+	if (tmp == NULL) return NULL; \
+	if (PyDict_SetItemString(d, key, tmp)) return NULL; \
+	Py_DECREF(tmp)
+
+	d = PyDict_New();
+
+	SET_FLOAT_CONST(d, "max", DBL_MAX);
+	SET_INT_CONST(d, "max_exp", DBL_MAX_EXP);
+	SET_INT_CONST(d, "max_10_exp", DBL_MAX_10_EXP);
+	SET_FLOAT_CONST(d, "min", DBL_MIN);
+	SET_INT_CONST(d, "min_exp", DBL_MIN_EXP);
+	SET_INT_CONST(d, "min_10_exp", DBL_MIN_10_EXP);
+	SET_INT_CONST(d, "dig", DBL_DIG);
+	SET_INT_CONST(d, "mant_dig", DBL_MANT_DIG);
+	SET_FLOAT_CONST(d, "epsilon", DBL_EPSILON);
+	SET_INT_CONST(d, "radix", FLT_RADIX);
+	SET_INT_CONST(d, "rounds", FLT_ROUNDS);
+
+	return d;
+}
+
+
 PyObject *
 PyFloat_FromDouble(double fval)
 {