mark mersenne_twister_engine<>::seed(result_type __sd) with _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK to placate UBSAN. Fixes PR#34160

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@312932 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2017-09-11 18:10:33 +00:00
parent ff400da261
commit 60f8ad1b1d

View File

@@ -2308,6 +2308,7 @@ template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
void
mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b,
__t, __c, __l, __f>::seed(result_type __sd)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{ // __w >= 2
__x_[0] = __sd & _Max;
for (size_t __i = 1; __i < __n; ++__i)