diff options
Diffstat (limited to 'absl/functional/overload.h')
| -rw-r--r-- | absl/functional/overload.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/absl/functional/overload.h b/absl/functional/overload.h index 4651f14b..732795fc 100644 --- a/absl/functional/overload.h +++ b/absl/functional/overload.h @@ -35,7 +35,14 @@ // [](double) -> absl::string_view { return "double"; }), // v) == "int"); // -// Note: This requires C++17. +// One of the lambda may specify overload for several types via generic lambda. +// +// absl::variant<std::string, int32_t, int64_t> v(int32_t{1}); +// assert(std::visit(absl::Overload( +// [](const std::string& s) { return s.size(); }, +// [](const auto& s) { return sizeof(s); }), v) == 4); +// +// Note: absl::Overload requires C++17. #ifndef ABSL_FUNCTIONAL_OVERLOAD_H_ #define ABSL_FUNCTIONAL_OVERLOAD_H_ |