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| author | Tuomas Tynkkynen <tuomas@tuxera.com> | 2016-10-26T15·09+0300 |
|---|---|---|
| committer | Tuomas Tynkkynen <tuomas@tuxera.com> | 2016-10-26T15·41+0300 |
| commit | f0fc3dd88b05866c4f6343d3c64ae1a4de4b8c9c (patch) | |
| tree | 6f0193766b56cd0286f38c2528db9e891f625098 /src/libexpr/names.hh | |
| parent | 5c0bd51d49a5022e83c17301bd03d4ce53cca98a (diff) | |
Fix SIGFPE from integer overflow during division
On some architectures (like x86_64 or i686, but not ARM for example)
overflow during integer division causes a crash due to SIGFPE.
Reproduces on a 64-bit system with:
nix-instantiate --eval -E '(-9223372036854775807 - 1) / -1'
The only way this can happen is when the smallest possible integer is
divided by -1, so just special-case that.
Diffstat (limited to 'src/libexpr/names.hh')
0 files changed, 0 insertions, 0 deletions