diff options
Diffstat (limited to 'absl/types/compare.h')
| -rw-r--r-- | absl/types/compare.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/absl/types/compare.h b/absl/types/compare.h index 7fed30814050..50361d623025 100644 --- a/absl/types/compare.h +++ b/absl/types/compare.h @@ -452,8 +452,10 @@ namespace compare_internal { // Helper functions to do a boolean comparison of two keys given a boolean // or three-way comparator. -constexpr bool compare_result_as_less_than(const bool r) { return r; } -constexpr bool compare_result_as_less_than(const int r) { return r < 0; } +// SFINAE prevents implicit conversions to bool (such as from int). +template <typename Bool, + absl::enable_if_t<std::is_same<bool, Bool>::value, int> = 0> +constexpr bool compare_result_as_less_than(const Bool r) { return r; } constexpr bool compare_result_as_less_than(const absl::weak_ordering r) { return r < 0; } |