[committed] libstdc++: Remove un-implementable noexcept from Filesystem TS operations

[Jonathan Wakely via Gcc-patches]

Tested powerpc64le-linux, pushed to trunk.


LWG 3014 removed these incorrect noexcept specifications from the C++17
std::filesystem operations. They are also incorrect on the experimental
TS versions and should be removed from them too.

libstdc++-v3/ChangeLog:

        * include/experimental/bits/fs_ops.h (fs::copy_file): Remove
        noexcept.
        (fs::create_directories): Likewise.
        (fs::remove_all): Likewise.
        * src/filesystem/ops.cc (fs::copy_file): Remove noexcept.
        (fs::create_directories): Likewise.
        (fs::remove_all): Likewise.
---
 libstdc++-v3/include/experimental/bits/fs_ops.h | 8 ++++----
 libstdc++-v3/src/filesystem/ops.cc              | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/libstdc++-v3/include/experimental/bits/fs_ops.h 
b/libstdc++-v3/include/experimental/bits/fs_ops.h
index 6e475306c23..dafd1ec79a0 100644
--- a/libstdc++-v3/include/experimental/bits/fs_ops.h
+++ b/libstdc++-v3/include/experimental/bits/fs_ops.h
@@ -74,19 +74,19 @@ inline namespace v1
   { return copy_file(__from, __to, copy_options::none); }
 
   inline bool
-  copy_file(const path& __from, const path& __to, error_code& __ec) noexcept
+  copy_file(const path& __from, const path& __to, error_code& __ec)
   { return copy_file(__from, __to, copy_options::none, __ec); }
 
   bool copy_file(const path& __from, const path& __to, copy_options __option);
   bool copy_file(const path& __from, const path& __to, copy_options __option,
-                error_code& __ec) noexcept;
+                error_code& __ec);
 
   void copy_symlink(const path& __existing_symlink, const path& __new_symlink);
   void copy_symlink(const path& __existing_symlink, const path& __new_symlink,
                    error_code& __ec) noexcept;
 
   bool create_directories(const path& __p);
-  bool create_directories(const path& __p, error_code& __ec) noexcept;
+  bool create_directories(const path& __p, error_code& __ec);
 
   bool create_directory(const path& __p);
   bool create_directory(const path& __p, error_code& __ec) noexcept;
@@ -262,7 +262,7 @@ inline namespace v1
   bool remove(const path& __p, error_code& __ec) noexcept;
 
   uintmax_t remove_all(const path& __p);
-  uintmax_t remove_all(const path& __p, error_code& __ec) noexcept;
+  uintmax_t remove_all(const path& __p, error_code& __ec);
 
   void rename(const path& __from, const path& __to);
   void rename(const path& __from, const path& __to, error_code& __ec) noexcept;
diff --git a/libstdc++-v3/src/filesystem/ops.cc 
b/libstdc++-v3/src/filesystem/ops.cc
index c020f621a88..e2a2cefdf49 100644
--- a/libstdc++-v3/src/filesystem/ops.cc
+++ b/libstdc++-v3/src/filesystem/ops.cc
@@ -372,7 +372,7 @@ fs::copy_file(const path& from, const path& to, 
copy_options option)
 
 bool
 fs::copy_file(const path& from, const path& to, copy_options options,
-             error_code& ec) noexcept
+             error_code& ec)
 {
 #ifdef _GLIBCXX_HAVE_SYS_STAT_H
   return do_copy_file(from.c_str(), to.c_str(), copy_file_options(options),
@@ -424,7 +424,7 @@ fs::create_directories(const path& p)
 }
 
 bool
-fs::create_directories(const path& p, error_code& ec) noexcept
+fs::create_directories(const path& p, error_code& ec)
 {
   if (p.empty())
     {
@@ -1098,7 +1098,7 @@ fs::remove_all(const path& p)
 }
 
 std::uintmax_t
-fs::remove_all(const path& p, error_code& ec) noexcept
+fs::remove_all(const path& p, error_code& ec)
 {
   // Use the C++17 implementation.
   return std::filesystem::remove_all(p.native(), ec);
-- 
2.34.1