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| author | Jeff Epler <jepler@gmail.com> | 2018-05-19 11:20:29 -0500 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2018-05-21 12:48:26 +1000 |
| commit | c4dafcef4fe9edaacaeeb16c412c298cbab3b414 (patch) | |
| tree | 9d6054c0c3de654c9b53482d4d18a8d767d9264b /tests/float/float_parse.py | |
| parent | 60eb5305f637e21f7ec4006924c06518ca6de476 (diff) | |
| download | micropython-c4dafcef4fe9edaacaeeb16c412c298cbab3b414.tar.gz micropython-c4dafcef4fe9edaacaeeb16c412c298cbab3b414.zip | |
py/mpz: Avoid undefined behavior at integer overflow in mpz_hash.
Before this, ubsan would detect a problem when executing
hash(006699999999999999999999999999999999999999999999999999999999999999999999)
../../py/mpz.c:1539:20: runtime error: left shift of 1067371580458 by
32 places cannot be represented in type 'mp_int_t' (aka 'long')
When the overflow does occur it now happens as defined by the rules of
unsigned arithmetic.
Diffstat (limited to 'tests/float/float_parse.py')
0 files changed, 0 insertions, 0 deletions