================ @@ -0,0 +1,119 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___NUMERIC_SATURATION_ARITHMETIC_H +#define _LIBCPP___NUMERIC_SATURATION_ARITHMETIC_H + +#include <__concepts/arithmetic.h> +#include <__config> +#include <__type_traits/decay.h> +#include <__utility/cmp.h> +#include <limits> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +# pragma GCC system_header +#endif + +_LIBCPP_BEGIN_NAMESPACE_STD + +#if _LIBCPP_STD_VER >= 26 + +template <typename _Tp> +concept __libcpp_standard_integer = __libcpp_unsigned_integer<decay_t<_Tp>> || __libcpp_signed_integer<decay_t<_Tp>>; + +template <__libcpp_standard_integer _Tp> +_LIBCPP_HIDE_FROM_ABI constexpr _Tp add_sat(_Tp __x, _Tp __y) noexcept { + if (_Tp __sum; !__builtin_add_overflow(__x, __y, &__sum)) ---------------- AaronBallman wrote:
You'll probably want to add test coverage for `_BitInt` as well given that it's an extension Clang supports in C++. https://github.com/llvm/llvm-project/pull/77967 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
