Issue #1580: use short float repr where possible.
- incorporate and adapt David Gay's dtoa and strtod
into the Python core
- on platforms where we can use Gay's code (almost
all!), repr(float) is based on the shortest
sequence of decimal digits that rounds correctly.
- add sys.float_repr_style attribute to indicate
whether we're using Gay's code or not
- add autoconf magic to detect and enable SSE2
instructions on x86/gcc
- slight change to repr and str: repr switches
to exponential notation at 1e16 instead of
1e17, str switches at 1e11 instead of 1e12
diff --git a/PC/pyconfig.h b/PC/pyconfig.h
index 04abc1f..2041784 100644
--- a/PC/pyconfig.h
+++ b/PC/pyconfig.h
@@ -752,4 +752,8 @@
socket handles greater than FD_SETSIZE */
#define Py_SOCKET_FD_CAN_BE_GE_FD_SETSIZE
+/* Define if C doubles are 64-bit IEEE 754 binary format, stored with the
+ least significant byte first */
+#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754 1
+
#endif /* !Py_CONFIG_H */