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Issue #7632: Fix a memory leak in _Py_dg_strtod.

This commit is contained in:
Mark Dickinson 2010-01-17 13:37:57 +00:00
parent 724c5b2e7f
commit 23df3d270d
2 changed files with 10 additions and 3 deletions
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5
Misc/NEWS
View File

@ -25,8 +25,9 @@ Core and Builtins
alpha 2, including: (1) a serious 'wrong output' bug that could
occur for long (> 40 digit) input strings, (2) a crash in dtoa.c
that occurred in debug builds when parsing certain long numeric
strings corresponding to subnormal values, and (3) a number of flaws
that could lead to incorrectly rounded results.
strings corresponding to subnormal values, (3) a memory leak for
some values large enough to cause overflow, and (4) a number of
flaws that could lead to incorrectly rounded results.
- Issue #7319, #7770: Silence DeprecationWarning by default when -3 is not
used.

8
Python/dtoa.c
View File

@ -1939,8 +1939,14 @@ _Py_dg_strtod(const char *s00, char **se)
dval(&rv) += adj.d;
if ((word0(&rv) & Exp_mask) >=
Exp_msk1*(DBL_MAX_EXP+Bias-P)) {
if (word0(&rv0) == Big0 && word1(&rv0) == Big1)
if (word0(&rv0) == Big0 && word1(&rv0) == Big1) {
Bfree(bb);
Bfree(bd);
Bfree(bs);
Bfree(bd0);
Bfree(delta);
goto ovfl;
}
word0(&rv) = Big0;
word1(&rv) = Big1;
goto cont;