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-rw-r--r--absl/types/compare.h136
1 files changed, 4 insertions, 132 deletions
diff --git a/absl/types/compare.h b/absl/types/compare.h
index 2b89b69c..ab0543c0 100644
--- a/absl/types/compare.h
+++ b/absl/types/compare.h
@@ -16,15 +16,15 @@
// compare.h
// -----------------------------------------------------------------------------
//
-// This header file defines the `absl::weak_equality`, `absl::strong_equality`,
-// `absl::partial_ordering`, `absl::weak_ordering`, and `absl::strong_ordering`
-// types for storing the results of three way comparisons.
+// This header file defines the `absl::partial_ordering`, `absl::weak_ordering`,
+// and `absl::strong_ordering` types for storing the results of three way
+// comparisons.
//
// Example:
// absl::weak_ordering compare(const std::string& a, const std::string& b);
//
// These are C++11 compatible versions of the C++20 corresponding types
-// (`std::weak_equality`, etc.) and are designed to be drop-in replacements
+// (`std::partial_ordering`, etc.) and are designed to be drop-in replacements
// for code compliant with C++20.
#ifndef ABSL_TYPES_COMPARE_H_
@@ -122,20 +122,6 @@ enum class ncmp : value_type { unordered = -127 };
// in the header file (for performance) without using inline variables (which
// aren't available in C++11).
template <typename T>
-struct weak_equality_base {
- ABSL_COMPARE_INLINE_BASECLASS_DECL(equivalent);
- ABSL_COMPARE_INLINE_BASECLASS_DECL(nonequivalent);
-};
-
-template <typename T>
-struct strong_equality_base {
- ABSL_COMPARE_INLINE_BASECLASS_DECL(equal);
- ABSL_COMPARE_INLINE_BASECLASS_DECL(nonequal);
- ABSL_COMPARE_INLINE_BASECLASS_DECL(equivalent);
- ABSL_COMPARE_INLINE_BASECLASS_DECL(nonequivalent);
-};
-
-template <typename T>
struct partial_ordering_base {
ABSL_COMPARE_INLINE_BASECLASS_DECL(less);
ABSL_COMPARE_INLINE_BASECLASS_DECL(equivalent);
@@ -160,104 +146,6 @@ struct strong_ordering_base {
} // namespace compare_internal
-class weak_equality
- : public compare_internal::weak_equality_base<weak_equality> {
- explicit constexpr weak_equality(compare_internal::eq v) noexcept
- : value_(static_cast<compare_internal::value_type>(v)) {}
- friend struct compare_internal::weak_equality_base<weak_equality>;
-
- public:
- ABSL_COMPARE_INLINE_SUBCLASS_DECL(weak_equality, equivalent);
- ABSL_COMPARE_INLINE_SUBCLASS_DECL(weak_equality, nonequivalent);
-
- // Comparisons
- friend constexpr bool operator==(
- weak_equality v, compare_internal::OnlyLiteralZero) noexcept {
- return v.value_ == 0;
- }
- friend constexpr bool operator!=(
- weak_equality v, compare_internal::OnlyLiteralZero) noexcept {
- return v.value_ != 0;
- }
- friend constexpr bool operator==(compare_internal::OnlyLiteralZero,
- weak_equality v) noexcept {
- return 0 == v.value_;
- }
- friend constexpr bool operator!=(compare_internal::OnlyLiteralZero,
- weak_equality v) noexcept {
- return 0 != v.value_;
- }
- friend constexpr bool operator==(weak_equality v1,
- weak_equality v2) noexcept {
- return v1.value_ == v2.value_;
- }
- friend constexpr bool operator!=(weak_equality v1,
- weak_equality v2) noexcept {
- return v1.value_ != v2.value_;
- }
-
- private:
- compare_internal::value_type value_;
-};
-ABSL_COMPARE_INLINE_INIT(weak_equality, equivalent,
- compare_internal::eq::equivalent);
-ABSL_COMPARE_INLINE_INIT(weak_equality, nonequivalent,
- compare_internal::eq::nonequivalent);
-
-class strong_equality
- : public compare_internal::strong_equality_base<strong_equality> {
- explicit constexpr strong_equality(compare_internal::eq v) noexcept
- : value_(static_cast<compare_internal::value_type>(v)) {}
- friend struct compare_internal::strong_equality_base<strong_equality>;
-
- public:
- ABSL_COMPARE_INLINE_SUBCLASS_DECL(strong_equality, equal);
- ABSL_COMPARE_INLINE_SUBCLASS_DECL(strong_equality, nonequal);
- ABSL_COMPARE_INLINE_SUBCLASS_DECL(strong_equality, equivalent);
- ABSL_COMPARE_INLINE_SUBCLASS_DECL(strong_equality, nonequivalent);
-
- // Conversion
- constexpr operator weak_equality() const noexcept { // NOLINT
- return value_ == 0 ? weak_equality::equivalent
- : weak_equality::nonequivalent;
- }
- // Comparisons
- friend constexpr bool operator==(
- strong_equality v, compare_internal::OnlyLiteralZero) noexcept {
- return v.value_ == 0;
- }
- friend constexpr bool operator!=(
- strong_equality v, compare_internal::OnlyLiteralZero) noexcept {
- return v.value_ != 0;
- }
- friend constexpr bool operator==(compare_internal::OnlyLiteralZero,
- strong_equality v) noexcept {
- return 0 == v.value_;
- }
- friend constexpr bool operator!=(compare_internal::OnlyLiteralZero,
- strong_equality v) noexcept {
- return 0 != v.value_;
- }
- friend constexpr bool operator==(strong_equality v1,
- strong_equality v2) noexcept {
- return v1.value_ == v2.value_;
- }
- friend constexpr bool operator!=(strong_equality v1,
- strong_equality v2) noexcept {
- return v1.value_ != v2.value_;
- }
-
- private:
- compare_internal::value_type value_;
-};
-ABSL_COMPARE_INLINE_INIT(strong_equality, equal, compare_internal::eq::equal);
-ABSL_COMPARE_INLINE_INIT(strong_equality, nonequal,
- compare_internal::eq::nonequal);
-ABSL_COMPARE_INLINE_INIT(strong_equality, equivalent,
- compare_internal::eq::equivalent);
-ABSL_COMPARE_INLINE_INIT(strong_equality, nonequivalent,
- compare_internal::eq::nonequivalent);
-
class partial_ordering
: public compare_internal::partial_ordering_base<partial_ordering> {
explicit constexpr partial_ordering(compare_internal::eq v) noexcept
@@ -279,11 +167,6 @@ class partial_ordering
ABSL_COMPARE_INLINE_SUBCLASS_DECL(partial_ordering, greater);
ABSL_COMPARE_INLINE_SUBCLASS_DECL(partial_ordering, unordered);
- // Conversion
- constexpr operator weak_equality() const noexcept { // NOLINT
- return value_ == 0 ? weak_equality::equivalent
- : weak_equality::nonequivalent;
- }
// Comparisons
friend constexpr bool operator==(
partial_ordering v, compare_internal::OnlyLiteralZero) noexcept {
@@ -367,10 +250,6 @@ class weak_ordering
ABSL_COMPARE_INLINE_SUBCLASS_DECL(weak_ordering, greater);
// Conversions
- constexpr operator weak_equality() const noexcept { // NOLINT
- return value_ == 0 ? weak_equality::equivalent
- : weak_equality::nonequivalent;
- }
constexpr operator partial_ordering() const noexcept { // NOLINT
return value_ == 0 ? partial_ordering::equivalent
: (value_ < 0 ? partial_ordering::less
@@ -458,13 +337,6 @@ class strong_ordering
ABSL_COMPARE_INLINE_SUBCLASS_DECL(strong_ordering, greater);
// Conversions
- constexpr operator weak_equality() const noexcept { // NOLINT
- return value_ == 0 ? weak_equality::equivalent
- : weak_equality::nonequivalent;
- }
- constexpr operator strong_equality() const noexcept { // NOLINT
- return value_ == 0 ? strong_equality::equal : strong_equality::nonequal;
- }
constexpr operator partial_ordering() const noexcept { // NOLINT
return value_ == 0 ? partial_ordering::equivalent
: (value_ < 0 ? partial_ordering::less
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-26 18:58:52 +0000