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Issue #5859: Remove use of fixed-length buffers for float formatting

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in unicodeobject.c and the fallback version of PyOS_double_to_string.
As a result, operations like '%.120e' % 12.34 no longer raise an
exception.
This commit is contained in:
Mark Dickinson 2009-05-01 11:42:00 +00:00
parent fb526ac34a
commit f489caf5da
4 changed files with 90 additions and 98 deletions
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9
Lib/test/string_tests.py
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@ -1105,14 +1105,7 @@ class MixinStrUnicodeUserStringTest:
value = 0.01
for x in range(60):
value = value * 3.141592655 / 3.0 * 10.0
# The formatfloat() code in stringobject.c and
# unicodeobject.c uses a 120 byte buffer and switches from
# 'f' formatting to 'g' at precision 50, so we expect
# OverflowErrors for the ranges x < 50 and prec >= 67.
if x < 50 and prec >= 67:
self.checkraises(OverflowError, format, "__mod__", value)
else:
self.checkcall(format, "__mod__", value)
self.checkcall(format, "__mod__", value)
def test_inplace_rewrites(self):
# Check that strings don't copy and modify cached single-character strings