[libc++] Remove <string> and <vector> includes from <flat_map>

[philnik777]

<string> doesn't seem to be required at all and flat_map doesn't support vector<bool>, so we can include just vector<T>. This cuts the include time in half on my system.

[llvmbot]

@llvm/pr-subscribers-libcxx

Author: Nikolas Klauser (philnik777)

Changes

<string> doesn't seem to be required at all and flat_map doesn't support vector<bool>, so we can include just vector<T>. This cuts the include time in half on my system.

---

Full diff: https://github.com/llvm/llvm-project/pull/114876.diff

1 Files Affected:

• (modified) libcxx/include/__flat_map/flat_map.h (+2-2)

diff --git a/libcxx/include/__flat_map/flat_map.h b/libcxx/include/__flat_map/flat_map.h
index 5c14c0ac693b08..dbab5425065f46 100644
--- a/libcxx/include/__flat_map/flat_map.h
+++ b/libcxx/include/__flat_map/flat_map.h
@@ -19,6 +19,7 @@
 #include <__algorithm/ranges_stable_sort.h>
 #include <__algorithm/ranges_unique.h>
 #include <__algorithm/ranges_upper_bound.h>
+#include <__algorithm/remove_if.h>
 #include <__compare/synth_three_way.h>
 #include <__concepts/convertible_to.h>
 #include <__concepts/swappable.h>
@@ -52,10 +53,9 @@
 #include <__type_traits/maybe_const.h>
 #include <__utility/exception_guard.h>
 #include <__utility/pair.h>
+#include <__vector/vector.h>
 #include <initializer_list>
 #include <stdexcept>
-#include <string>
-#include <vector>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header