fs/{Allocated,}Path,Charset: use PathTraitsFS typedefs

src/fs/AllocatedPath.cxx

@@ -87,7 +87,7 @@ void
 AllocatedPath::ChopSeparators()
 {
 	size_t l = length();
-	const char *p = data();
+	const auto *p = data();
 
 	while (l >= 2 && PathTraitsFS::IsSeparator(p[l - 1])) {
 		--l;

src/fs/AllocatedPath.hxx

@@ -176,7 +176,7 @@ public:
 	 * Allows the caller to "steal" the internal value by
 	 * providing a rvalue reference to the std::string attribute.
 	 */
-	std::string &&Steal() {
+	string &&Steal() {
 		return std::move(value);
 	}
 

src/fs/Charset.cxx

@@ -22,7 +22,6 @@
 #include "Domain.hxx"
 #include "Limits.hxx"
 #include "Log.hxx"
-#include "Traits.hxx"
 #include "lib/icu/Converter.hxx"
 #include "util/Error.hxx"
 
@@ -73,13 +72,13 @@ GetFSCharset()
 #endif
 }
 
-static inline std::string &&
-FixSeparators(std::string &&s)
+static inline PathTraitsUTF8::string &&
+FixSeparators(PathTraitsUTF8::string &&s)
 {
 	// For whatever reason GCC can't convert constexpr to value reference.
 	// This leads to link errors when passing separators directly.
-	auto from = PathTraitsFS::SEPARATOR;
 	auto to = PathTraitsUTF8::SEPARATOR;
+	decltype(to) from = PathTraitsFS::SEPARATOR;
 
 	if (from != to)
 		/* convert backslash to slash on WIN32 */
@@ -88,8 +87,8 @@ FixSeparators(std::string &&s)
 	return std::move(s);
 }
 
-std::string
-PathToUTF8(const char *path_fs)
+PathTraitsUTF8::string
+PathToUTF8(PathTraitsFS::const_pointer path_fs)
 {
 #if !CLANG_CHECK_VERSION(3,6)
 	/* disabled on clang due to -Wtautological-pointer-compare */
@@ -108,8 +107,8 @@ PathToUTF8(const char *path_fs)
 
 #ifdef HAVE_FS_CHARSET
 
-std::string
-PathFromUTF8(const char *path_utf8)
+PathTraitsFS::string
+PathFromUTF8(PathTraitsUTF8::const_pointer path_utf8)
 {
 #if !CLANG_CHECK_VERSION(3,6)
 	/* disabled on clang due to -Wtautological-pointer-compare */

src/fs/Charset.hxx

@@ -22,8 +22,7 @@
 
 #include "check.h"
 #include "Compiler.h"
-
-#include <string>
+#include "Traits.hxx"
 
 #if defined(HAVE_ICU) || defined(HAVE_GLIB)
 #define HAVE_FS_CHARSET
@@ -49,15 +48,15 @@ DeinitFSCharset();
  * Returns empty string on error.
  */
 gcc_pure gcc_nonnull_all
-std::string
-PathToUTF8(const char *path_fs);
+PathTraitsUTF8::string
+PathToUTF8(PathTraitsFS::const_pointer path_fs);
 
 /**
  * Convert the path from UTF-8.
  * Returns empty string on error.
  */
 gcc_pure gcc_nonnull_all
-std::string
-PathFromUTF8(const char *path_utf8);
+PathTraitsFS::string
+PathFromUTF8(PathTraitsUTF8::const_pointer path_utf8);
 
 #endif

src/fs/Path.hxx

@@ -42,7 +42,7 @@ class Path {
 	typedef PathTraitsFS::pointer pointer;
 	typedef PathTraitsFS::const_pointer const_pointer;
 
-	const char *value;
+	const_pointer value;
 
 	constexpr Path(const_pointer _value):value(_value) {}
 
@@ -100,7 +100,7 @@ public:
 	size_t length() const {
 		assert(value != nullptr);
 
-		return strlen(value);
+		return PathTraitsFS::GetLength(value);
 	}
 
 	/**
@@ -153,7 +153,7 @@ public:
 	 * nullptr on mismatch.
 	 */
 	gcc_pure
-	const char *RelativeFS(const char *other_fs) const {
+	const_pointer RelativeFS(const_pointer other_fs) const {
 		return PathTraitsFS::Relative(value, other_fs);
 	}
 

src/fs/StandardDirectory.cxx

@@ -112,7 +112,7 @@ static inline AllocatedPath SafePathFromFS(PathTraitsFS::const_pointer dir)
 #ifdef WIN32
 static AllocatedPath GetStandardDir(int folder_id)
 {
-	std::array<char, MAX_PATH> dir;
+	std::array<PathTraitsFS::value_type, MAX_PATH> dir;
 	auto ret = SHGetFolderPath(nullptr, folder_id | CSIDL_FLAG_DONT_VERIFY,
 				   nullptr, SHGFP_TYPE_CURRENT, dir.data());
 	if (FAILED(ret))
@@ -287,7 +287,7 @@ AllocatedPath GetSystemConfigDir()
 
 AllocatedPath GetAppBaseDir()
 {
-	std::array<char, MAX_PATH> app;
+	std::array<PathTraitsFS::value_type, MAX_PATH> app;
 	auto ret = GetModuleFileName(nullptr, app.data(), app.size());
 
 	// Check for error