[libc++] Granularize <vector>

Author: philnik777

libcxx/include/CMakeLists.txt

@@ -871,6 +871,13 @@ set(files
   __utility/to_underlying.h
   __utility/unreachable.h
   __variant/monostate.h
+  __vector/comparison.h
+  __vector/erase.h
+  __vector/formatter.h
+  __vector/pmr.h
+  __vector/swap.h
+  __vector/vector.h
+  __vector/vector_bool.h
   __verbose_abort
   algorithm
   any

libcxx/include/__chrono/tzdb.h

@@ -21,8 +21,8 @@
 #  include <__chrono/time_zone.h>
 #  include <__chrono/time_zone_link.h>
 #  include <__config>
+#  include <__vector/vector.h>
 #  include <string>
-#  include <vector>
 
 #  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #    pragma GCC system_header

libcxx/include/__functional/boyer_moore_searcher.h

@@ -22,9 +22,9 @@
 #include <__memory/shared_ptr.h>
 #include <__type_traits/make_unsigned.h>
 #include <__utility/pair.h>
+#include <__vector/vector.h>
 #include <array>
 #include <unordered_map>
-#include <vector>
 
 #if _LIBCPP_STD_VER >= 17
 

libcxx/include/__fwd/vector.h

@@ -21,6 +21,9 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 template <class _Tp, class _Alloc = allocator<_Tp> >
 class _LIBCPP_TEMPLATE_VIS vector;
 
+template <class _Allocator>
+class vector<bool, _Allocator>;
+
 _LIBCPP_END_NAMESPACE_STD
 
 #endif // _LIBCPP___FWD_VECTOR_H

libcxx/include/__random/discrete_distribution.h

@@ -13,10 +13,10 @@
 #include <__config>
 #include <__random/is_valid.h>
 #include <__random/uniform_real_distribution.h>
+#include <__vector/vector.h>
 #include <cstddef>
 #include <iosfwd>
 #include <numeric>
-#include <vector>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header

libcxx/include/__random/piecewise_constant_distribution.h

@@ -13,9 +13,9 @@
 #include <__config>
 #include <__random/is_valid.h>
 #include <__random/uniform_real_distribution.h>
+#include <__vector/vector.h>
 #include <iosfwd>
 #include <numeric>
-#include <vector>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header

libcxx/include/__random/piecewise_linear_distribution.h

@@ -13,9 +13,11 @@
 #include <__config>
 #include <__random/is_valid.h>
 #include <__random/uniform_real_distribution.h>
+#include <__vector/comparison.h>
+#include <__vector/vector.h>
 #include <cmath>
+#include <initializer_list>
 #include <iosfwd>
-#include <vector>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header

libcxx/include/__random/seed_seq.h

@@ -15,9 +15,9 @@
 #include <__config>
 #include <__iterator/iterator_traits.h>
 #include <__type_traits/is_unsigned.h>
+#include <__vector/vector.h>
 #include <cstdint>
 #include <initializer_list>
-#include <vector>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header

libcxx/include/__vector/comparison.h

@@ -0,0 +1,72 @@
+//===----------------------------------------------------------------------===//
+//
+// 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___VECTOR_COMPARISON_H
+#define _LIBCPP___VECTOR_COMPARISON_H
+
+#include <__algorithm/equal.h>
+#include <__algorithm/lexicographical_compare.h>
+#include <__algorithm/lexicographical_compare_three_way.h>
+#include <__compare/synth_three_way.h>
+#include <__config>
+#include <__fwd/vector.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template <class _Tp, class _Allocator>
+_LIBCPP_CONSTEXPR_SINCE_CXX20 inline _LIBCPP_HIDE_FROM_ABI bool
+operator==(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) {
+  const typename vector<_Tp, _Allocator>::size_type __sz = __x.size();
+  return __sz == __y.size() && std::equal(__x.begin(), __x.end(), __y.begin());
+}
+
+#if _LIBCPP_STD_VER <= 17
+
+template <class _Tp, class _Allocator>
+inline _LIBCPP_HIDE_FROM_ABI bool operator!=(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) {
+  return !(__x == __y);
+}
+
+template <class _Tp, class _Allocator>
+inline _LIBCPP_HIDE_FROM_ABI bool operator<(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) {
+  return std::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
+}
+
+template <class _Tp, class _Allocator>
+inline _LIBCPP_HIDE_FROM_ABI bool operator>(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) {
+  return __y < __x;
+}
+
+template <class _Tp, class _Allocator>
+inline _LIBCPP_HIDE_FROM_ABI bool operator>=(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) {
+  return !(__x < __y);
+}
+
+template <class _Tp, class _Allocator>
+inline _LIBCPP_HIDE_FROM_ABI bool operator<=(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) {
+  return !(__y < __x);
+}
+
+#else // _LIBCPP_STD_VER <= 17
+
+template <class _Tp, class _Allocator>
+_LIBCPP_HIDE_FROM_ABI constexpr __synth_three_way_result<_Tp>
+operator<=>(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) {
+  return std::lexicographical_compare_three_way(
+      __x.begin(), __x.end(), __y.begin(), __y.end(), std::__synth_three_way);
+}
+
+#endif // _LIBCPP_STD_VER <= 17
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___VECTOR_COMPARISON_H

libcxx/include/__vector/erase.h

@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+// 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___VECTOR_ERASE_H
+#define _LIBCPP___VECTOR_ERASE_H
+
+#include <__algorithm/remove.h>
+#include <__algorithm/remove_if.h>
+#include <__config>
+#include <__fwd/vector.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
+#if _LIBCPP_STD_VER >= 20
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template <class _Tp, class _Allocator, class _Up>
+_LIBCPP_CONSTEXPR_SINCE_CXX20 inline _LIBCPP_HIDE_FROM_ABI typename vector<_Tp, _Allocator>::size_type
+erase(vector<_Tp, _Allocator>& __c, const _Up& __v) {
+  auto __old_size = __c.size();
+  __c.erase(std::remove(__c.begin(), __c.end(), __v), __c.end());
+  return __old_size - __c.size();
+}
+
+template <class _Tp, class _Allocator, class _Predicate>
+_LIBCPP_CONSTEXPR_SINCE_CXX20 inline _LIBCPP_HIDE_FROM_ABI typename vector<_Tp, _Allocator>::size_type
+erase_if(vector<_Tp, _Allocator>& __c, _Predicate __pred) {
+  auto __old_size = __c.size();
+  __c.erase(std::remove_if(__c.begin(), __c.end(), __pred), __c.end());
+  return __old_size - __c.size();
+}
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER >= 20
+
+_LIBCPP_POP_MACROS
+
+#endif // _LIBCPP___VECTOR_ERASE_H