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author | Mark Dickinson <dickinsm@gmail.com> | 2009-04-16 19:52:09 (GMT) |
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committer | Mark Dickinson <dickinsm@gmail.com> | 2009-04-16 19:52:09 (GMT) |
commit | b08a53a99def3fa949643974f713b5b189e21bc7 (patch) | |
tree | 6f7663d510099fd7acfa328ae5a5c88e3eddb1a7 /Include/pymacconfig.h | |
parent | 579b65c2d695eb468fb97568ff7d2ad9d261b2b3 (diff) | |
download | cpython-b08a53a99def3fa949643974f713b5b189e21bc7.zip cpython-b08a53a99def3fa949643974f713b5b189e21bc7.tar.gz cpython-b08a53a99def3fa949643974f713b5b189e21bc7.tar.bz2 |
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
Diffstat (limited to 'Include/pymacconfig.h')
-rw-r--r-- | Include/pymacconfig.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Include/pymacconfig.h b/Include/pymacconfig.h index a8679af..7b20431 100644 --- a/Include/pymacconfig.h +++ b/Include/pymacconfig.h @@ -17,6 +17,9 @@ # undef SIZEOF_VOID_P # undef SIZEOF__BOOL # undef WORDS_BIGENDIAN +# undef DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754 +# undef DOUBLE_IS_BIG_ENDIAN_IEEE754 +# undef DOUBLE_IS_LITTLE_ENDIAN_IEEE754 # undef VA_LIST_IS_ARRAY # if defined(__LP64__) && defined(__x86_64__) @@ -65,6 +68,9 @@ #ifdef __BIG_ENDIAN__ #define WORDS_BIGENDIAN 1 +#define DOUBLE_IS_BIG_ENDIAN_IEEE754 +#else +#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754 #endif /* __BIG_ENDIAN */ |