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| author | Dean Rasheed <dean.a.rasheed@gmail.com> | 2021-01-05 11:02:46 +0000 |
|---|---|---|
| committer | Dean Rasheed <dean.a.rasheed@gmail.com> | 2021-01-05 11:02:46 +0000 |
| commit | 9a299dff25a5f945cc2ee0c00b705857f966e169 (patch) | |
| tree | 1ae1202706b14ae57f89dbcb5718fca7c883904b /src/tutorial | |
| parent | 0709b644239ea5beeb21a53220c5b8eceae9a317 (diff) | |
Fix numeric_power() when the exponent is INT_MIN.
In power_var_int(), the computation of the number of significant
digits to use in the computation used log(Abs(exp)), which isn't safe
because Abs(exp) returns INT_MIN when exp is INT_MIN. Use fabs()
instead of Abs(), so that the exponent is cast to a double before the
absolute value is taken.
Back-patch to 9.6, where this was introduced (by 7d9a4737c2).
Discussion: https://postgr.es/m/CAEZATCVd6pMkz=BrZEgBKyqqJrt2xghr=fNc8+Z=5xC6cgWrWA@mail.gmail.com
Diffstat (limited to 'src/tutorial')
0 files changed, 0 insertions, 0 deletions