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| author | Jonathan Wakely <jwakely@redhat.com> | 2020-10-08 15:14:58 +0100 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2020-10-08 15:24:21 +0100 |
| commit | b2a96bf9dce41ee777b1669e4a8b4c6df3ff3613 (patch) | |
| tree | 1232ac1c462cbd462331ca81914b23cc948acbf7 /libcpp/internal.h | |
| parent | 5a448362da6133c3b16ffdb0c795b657af7fa5a4 (diff) | |
| download | gcc-b2a96bf9dce41ee777b1669e4a8b4c6df3ff3613.zip gcc-b2a96bf9dce41ee777b1669e4a8b4c6df3ff3613.tar.gz gcc-b2a96bf9dce41ee777b1669e4a8b4c6df3ff3613.tar.bz2 | |
libstdc++: Add assertions for preconditions in sampling distributions [PR 82584]
These three distributions all require 0 < S where S is the sum of the
weights. When the sum is zero there's an undefined FP division by zero.
Add assertions to help users diagnose the problem.
libstdc++-v3/ChangeLog:
PR libstdc++/82584
* include/bits/random.tcc
(discrete_distribution::param_type::_M_initialize)
(piecewise_constant_distribution::param_type::_M_initialize)
(piecewise_linear_distribution::param_type::_M_initialize):
Add assertions for positive sums..
* testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
line.
Diffstat (limited to 'libcpp/internal.h')
0 files changed, 0 insertions, 0 deletions