Eric Smith <e...@trueblade.com> added the comment:
My changes on the py3k-short-float-repr branch include:
- Create a new function PyOS_double_to_string. This will replace
PyOS_ascii_formatd. All existing internal uses of PyOS_ascii_formatd
follow this pattern: printf into a buffer to build up the format string,
call PyOS_ascii_formatd, then parse the format string to determine what
to do. The changes to the API are:
- discrete parameters instead of a printf-like format string. No
parsing is required.
- returns PyMem_Malloc'd memory instead of writing into a supplied
buffer.
- Modify all callers of PyOS_ascii_formatd to call PyOS_double_to_string
instead. These are:
- Modules/_pickle.c
- Objects/complexobject.c
- Objects/floatobject.c
- Objects/stringlib/formatter.h
- Objects/unicodeobject.c
- Python/marshal.c
Remaining to be done:
- Re-enable 'n' (locale-aware) formatting in float.__format__().
- Decide what to do about the change in meaning of "alt" formatting with
format code 'g' when an exponent is present, also in float.__format__().
- Have marshal.c deal with potential memory failures returned from
PyOS_double_to_string.
- Deprecate PyOS_ascii_formatd.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue1580>
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