Enable the -Wsign-compare warning to better support MSVC

llvm-svn: 289363

3 files changed, 10 insertions, 7 deletions

diff --git a/libcxx/test/std/experimental/filesystem/fs.op.funcs/fs.op.copy/copy.pass.cpp b/libcxx/test/std/experimental/filesystem/fs.op.funcs/fs.op.copy/copy.pass.cpp
index 6e10ce51ce3..db10da092ef 100644
--- a/libcxx/test/std/experimental/filesystem/fs.op.funcs/fs.op.copy/copy.pass.cpp
+++ b/libcxx/test/std/experimental/filesystem/fs.op.funcs/fs.op.copy/copy.pass.cpp
@@ -19,6 +19,7 @@
 
 #include <experimental/filesystem>
 #include <type_traits>
+#include <cstddef>
 #include <cassert>
 
 #include "test_macros.h"
@@ -196,7 +197,7 @@ TEST_CASE(from_is_directory)
 {
     struct FileInfo {
         path filename;
-        int size;
+        std::size_t size;
     };
     const FileInfo files[] = {
         {"file1", 0},
diff --git a/libcxx/test/std/experimental/string.view/string.view.iterators/end.pass.cpp b/libcxx/test/std/experimental/string.view/string.view.iterators/end.pass.cpp
index 0eeafac4939..1f22b3fbe4b 100644
--- a/libcxx/test/std/experimental/string.view/string.view.iterators/end.pass.cpp
+++ b/libcxx/test/std/experimental/string.view/string.view.iterators/end.pass.cpp
@@ -12,6 +12,7 @@
 // constexpr const_iterator end() const;
 
 #include <experimental/string_view>
+#include <cstddef>
 #include <cassert>
 
 #include "test_macros.h"
@@ -38,9 +39,9 @@ test(S s)
         assert(ce2 !=  s.begin());
     }
 
-    assert(  e -  s.begin() == s.size());
-    assert(ce1 - cs.begin() == cs.size());
-    assert(ce2 - s.cbegin() == s.size());
+    assert(  e -  s.begin() == static_cast<std::ptrdiff_t>(s.size()));
+    assert(ce1 - cs.begin() == static_cast<std::ptrdiff_t>(cs.size()));
+    assert(ce2 - s.cbegin() == static_cast<std::ptrdiff_t>(s.size()));
 
     assert(  e == ce1);
     assert(  e == ce2);
diff --git a/libcxx/test/std/experimental/string.view/string.view.iterators/rend.pass.cpp b/libcxx/test/std/experimental/string.view/string.view.iterators/rend.pass.cpp
index 55e28a26694..bd24c327e09 100644
--- a/libcxx/test/std/experimental/string.view/string.view.iterators/rend.pass.cpp
+++ b/libcxx/test/std/experimental/string.view/string.view.iterators/rend.pass.cpp
@@ -12,6 +12,7 @@
 // constexpr const_iterator rend() const;
 
 #include <experimental/string_view>
+#include <cstddef>
 #include <cassert>
 
 #include "test_macros.h"
@@ -38,9 +39,9 @@ test(S s)
         assert(ce2 !=  s.rbegin());
     }
 
-    assert(  e -  s.rbegin() == s.size());
-    assert(ce1 - cs.rbegin() == cs.size());
-    assert(ce2 - s.crbegin() == s.size());
+    assert(  e -  s.rbegin() == static_cast<std::ptrdiff_t>(s.size()));
+    assert(ce1 - cs.rbegin() == static_cast<std::ptrdiff_t>(cs.size()));
+    assert(ce2 - s.crbegin() == static_cast<std::ptrdiff_t>(s.size()));
 
     assert(  e == ce1);
     assert(  e == ce2);