From a4303f9207ac3ee950be29d6ad6245ccdb63d2ea Mon Sep 17 00:00:00 2001
From: Steffen Schuemann <s.schuemann@pobox.com>
Date: Wed, 2 Jan 2019 19:59:27 +0100
Subject: [PATCH] #4: Added test code, fixed missing error_code propagation,
 and error handling in fs::copy and fs::remove_all.

---
 filesystem.h             | 15 ++++++++++-----
 test/filesystem_test.cpp |  3 +++
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/filesystem.h b/filesystem.h
index 0172263..86cbda7 100644
--- a/filesystem.h
+++ b/filesystem.h
@@ -104,7 +104,7 @@
 #define LWG_2937_BEHAVIOUR
 
 // ghc::filesystem version in decimal (major * 10000 + minor * 100 + patch)
-#define GHC_FILESYSTEM_VERSION 10004L
+#define GHC_FILESYSTEM_VERSION 10005L
 
 namespace ghc {
 namespace filesystem {
@@ -2812,8 +2812,11 @@ inline void copy(const path& from, const path& to, copy_options options, std::er
                 return;
             }
         }
-        for (const directory_entry& x : directory_iterator(from)) {
-            copy(x.path(), to / x.path().filename(), options | static_cast<copy_options>(0x8000));
+        for (const directory_entry& x : directory_iterator(from, ec)) {
+            copy(x.path(), to / x.path().filename(), options | static_cast<copy_options>(0x8000), ec);
+            if(ec) {
+                return;
+            }
         }
     }
     return;
@@ -3685,7 +3688,7 @@ inline uintmax_t remove_all(const path& p, std::error_code& ec) noexcept
         ec = detail::make_error_code(detail::portable_error::not_supported);
         return static_cast<uintmax_t>(-1);
     }
-    for (const directory_entry& de : directory_iterator(p)) {
+    for (const directory_entry& de : directory_iterator(p, ec)) {
         if (!de.is_symlink() && de.is_directory()) {
             count += remove_all(de.path(), ec);
             if (ec) {
@@ -3700,7 +3703,9 @@ inline uintmax_t remove_all(const path& p, std::error_code& ec) noexcept
             ++count;
         }
     }
-    remove(p, ec);
+    if(!ec) {
+        remove(p, ec);
+    }
     if (ec) {
         return static_cast<uintmax_t>(-1);
     }
diff --git a/test/filesystem_test.cpp b/test/filesystem_test.cpp
index 31ae827..d720cee 100644
--- a/test/filesystem_test.cpp
+++ b/test/filesystem_test.cpp
@@ -1019,6 +1019,7 @@ TEST_CASE("30.10.13 class directory_iterator", "[filesystem][directory_iterator]
         CHECK(!iter->is_directory());
         CHECK(iter->file_size() == 1234);
         CHECK(++iter == fs::directory_iterator());
+        CHECK_THROWS_AS(fs::directory_iterator(t.path() / "non-existing"), fs::filesystem_error);
     }
     if (is_symlink_creation_supported()) {
         TemporaryDirectory t;
@@ -2008,6 +2009,8 @@ TEST_CASE("30.10.15.31 remove_all", "[filesystem][operations][fs.op.remove_all]"
     fs::create_directories("dir1/dir1b");
     generateFile("dir1/dir1a/f1");
     generateFile("dir1/dir1b/f2");
+    CHECK_NOTHROW(fs::remove_all("dir1/non-existing", ec));
+    CHECK(ec);
     CHECK(fs::remove_all("dir1") == 5);
     CHECK(fs::directory_iterator(t.path()) == fs::directory_iterator());
 }