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[SYCL] variadic_iterator noexcept #19706

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Merged
merged 2 commits into from
Aug 21, 2025
Merged

[SYCL] variadic_iterator noexcept #19706

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1b1fa2d
variadic_iterator is used by several routines that are marked as noex…
cperkinsintel Aug 4, 2025
15dbcba
clang format
cperkinsintel Aug 4, 2025
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15 changes: 5 additions & 10 deletions sycl/source/detail/helpers.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -59,23 +59,18 @@ template <typename SyclTy, typename... Iterators> class variadic_iterator {
template <typename IterTy>
variadic_iterator(IterTy &&It) : It(std::forward<IterTy>(It)) {}

variadic_iterator &operator++() {
It = std::visit(
[](auto &&It) {
++It;
return storage_iter{It};
},
It);
variadic_iterator &operator++() noexcept {
std::visit([](auto &&It) noexcept { ++It; }, It);
return *this;
}
bool operator!=(const variadic_iterator &Other) const {
bool operator!=(const variadic_iterator &Other) const noexcept {
return It != Other.It;
}
bool operator==(const variadic_iterator &Other) const {
bool operator==(const variadic_iterator &Other) const noexcept {
return It == Other.It;
}

decltype(auto) operator*() {
decltype(auto) operator*() noexcept {
return std::visit(
[](auto &&It) -> decltype(auto) {
decltype(auto) Elem = *It;
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