chore: Nitpicking-utils (#1549)

* nit

* GeneralUtils const-correctness and minor fixes

* use copy instead of reference for char iteration loops

* fix typo and reorganize some functions

dCommon/GeneralUtils.cpp

@@ -8,23 +8,23 @@
 #include <map>
 
 template <typename T>
-inline size_t MinSize(size_t size, const std::basic_string_view<T>& string) {
+static inline size_t MinSize(const size_t size, const std::basic_string_view<T> string) {
-	if (size == size_t(-1) || size > string.size()) {
+	if (size == SIZE_MAX || size > string.size()) {
 		return string.size();
 	} else {
 		return size;
 	}
 }
 
-inline bool IsLeadSurrogate(char16_t c) {
+inline bool IsLeadSurrogate(const char16_t c) {
 	return (0xD800 <= c) && (c <= 0xDBFF);
 }
 
-inline bool IsTrailSurrogate(char16_t c) {
+inline bool IsTrailSurrogate(const char16_t c) {
 	return (0xDC00 <= c) && (c <= 0xDFFF);
 }
 
-inline void PushUTF8CodePoint(std::string& ret, char32_t cp) {
+inline void PushUTF8CodePoint(std::string& ret, const char32_t cp) {
 	if (cp <= 0x007F) {
 		ret.push_back(static_cast<uint8_t>(cp));
 	} else if (cp <= 0x07FF) {
@@ -46,16 +46,16 @@ inline void PushUTF8CodePoint(std::string& ret, char32_t cp) {
 
 constexpr const char16_t REPLACEMENT_CHARACTER = 0xFFFD;
 
-bool _IsSuffixChar(uint8_t c) {
+bool static _IsSuffixChar(const uint8_t c) {
 	return (c & 0xC0) == 0x80;
 }
 
-bool GeneralUtils::_NextUTF8Char(std::string_view& slice, uint32_t& out) {
+bool GeneralUtils::details::_NextUTF8Char(std::string_view& slice, uint32_t& out) {
-	size_t rem = slice.length();
+	const size_t rem = slice.length();
 	if (slice.empty()) return false;
 	const uint8_t* bytes = reinterpret_cast<const uint8_t*>(&slice.front());
 	if (rem > 0) {
-		uint8_t first = bytes[0];
+		const uint8_t first = bytes[0];
 		if (first < 0x80) { // 1 byte character
 			out = static_cast<uint32_t>(first & 0x7F);
 			slice.remove_prefix(1);
@@ -64,7 +64,7 @@ bool GeneralUtils::_NextUTF8Char(std::string_view& slice, uint32_t& out) {
 			// middle byte, not valid at start, fall through
 		} else if (first < 0xE0) { // two byte character
 			if (rem > 1) {
-				uint8_t second = bytes[1];
+				const uint8_t second = bytes[1];
 				if (_IsSuffixChar(second)) {
 					out = (static_cast<uint32_t>(first & 0x1F) << 6)
 						+ static_cast<uint32_t>(second & 0x3F);
@@ -74,8 +74,8 @@ bool GeneralUtils::_NextUTF8Char(std::string_view& slice, uint32_t& out) {
 			}
 		} else if (first < 0xF0) { // three byte character
 			if (rem > 2) {
-				uint8_t second = bytes[1];
+				const uint8_t second = bytes[1];
-				uint8_t third = bytes[2];
+				const uint8_t third = bytes[2];
 				if (_IsSuffixChar(second) && _IsSuffixChar(third)) {
 					out = (static_cast<uint32_t>(first & 0x0F) << 12)
 						+ (static_cast<uint32_t>(second & 0x3F) << 6)
@@ -86,9 +86,9 @@ bool GeneralUtils::_NextUTF8Char(std::string_view& slice, uint32_t& out) {
 			}
 		} else if (first < 0xF8) { // four byte character
 			if (rem > 3) {
-				uint8_t second = bytes[1];
+				const uint8_t second = bytes[1];
-				uint8_t third = bytes[2];
+				const uint8_t third = bytes[2];
-				uint8_t fourth = bytes[3];
+				const uint8_t fourth = bytes[3];
 				if (_IsSuffixChar(second) && _IsSuffixChar(third) && _IsSuffixChar(fourth)) {
 					out = (static_cast<uint32_t>(first & 0x07) << 18)
 						+ (static_cast<uint32_t>(second & 0x3F) << 12)
@@ -107,7 +107,7 @@ bool GeneralUtils::_NextUTF8Char(std::string_view& slice, uint32_t& out) {
 }
 
 /// See <https://www.ietf.org/rfc/rfc2781.html#section-2.1>
-bool PushUTF16CodePoint(std::u16string& output, uint32_t U, size_t size) {
+bool PushUTF16CodePoint(std::u16string& output, const uint32_t U, const size_t size) {
 	if (output.length() >= size) return false;
 	if (U < 0x10000) {
 		// If U < 0x10000, encode U as a 16-bit unsigned integer and terminate.
@@ -120,7 +120,7 @@ bool PushUTF16CodePoint(std::u16string& output, uint32_t U, size_t size) {
 		// Let U' = U - 0x10000. Because U is less than or equal to 0x10FFFF,
 		// U' must be less than or equal to 0xFFFFF. That is, U' can be
 		// represented in 20 bits.
-		uint32_t Ut = U - 0x10000;
+		const uint32_t Ut = U - 0x10000;
 
 		// Initialize two 16-bit unsigned integers, W1 and W2, to 0xD800 and
 		// 0xDC00, respectively. These integers each have 10 bits free to
@@ -141,25 +141,25 @@ bool PushUTF16CodePoint(std::u16string& output, uint32_t U, size_t size) {
 	} else return false;
 }
 
-std::u16string GeneralUtils::UTF8ToUTF16(const std::string_view& string, size_t size) {
+std::u16string GeneralUtils::UTF8ToUTF16(const std::string_view string, const size_t size) {
-	size_t newSize = MinSize(size, string);
+	const size_t newSize = MinSize(size, string);
 	std::u16string output;
 	output.reserve(newSize);
 	std::string_view iterator = string;
 
 	uint32_t c;
-	while (_NextUTF8Char(iterator, c) && PushUTF16CodePoint(output, c, size)) {}
+	while (details::_NextUTF8Char(iterator, c) && PushUTF16CodePoint(output, c, size)) {}
 	return output;
 }
 
 //! Converts an std::string (ASCII) to UCS-2 / UTF-16
-std::u16string GeneralUtils::ASCIIToUTF16(const std::string_view& string, size_t size) {
+std::u16string GeneralUtils::ASCIIToUTF16(const std::string_view string, const size_t size) {
-	size_t newSize = MinSize(size, string);
+	const size_t newSize = MinSize(size, string);
 	std::u16string ret;
 	ret.reserve(newSize);
 
-	for (size_t i = 0; i < newSize; i++) {
+	for (size_t i = 0; i < newSize; ++i) {
-		char c = string[i];
+		const char c = string[i];
 		// Note: both 7-bit ascii characters and REPLACEMENT_CHARACTER fit in one char16_t
 		ret.push_back((c > 0 && c <= 127) ? static_cast<char16_t>(c) : REPLACEMENT_CHARACTER);
 	}
@@ -169,18 +169,18 @@ std::u16string GeneralUtils::ASCIIToUTF16(const std::string_view& string, size_t
 
 //! Converts a (potentially-ill-formed) UTF-16 string to UTF-8
 //! See: <http://simonsapin.github.io/wtf-8/#decoding-ill-formed-utf-16>
-std::string GeneralUtils::UTF16ToWTF8(const std::u16string_view& string, size_t size) {
+std::string GeneralUtils::UTF16ToWTF8(const std::u16string_view string, const size_t size) {
-	size_t newSize = MinSize(size, string);
+	const size_t newSize = MinSize(size, string);
 	std::string ret;
 	ret.reserve(newSize);
 
-	for (size_t i = 0; i < newSize; i++) {
+	for (size_t i = 0; i < newSize; ++i) {
-		char16_t u = string[i];
+		const char16_t u = string[i];
 		if (IsLeadSurrogate(u) && (i + 1) < newSize) {
-			char16_t next = string[i + 1];
+			const char16_t next = string[i + 1];
 			if (IsTrailSurrogate(next)) {
 				i += 1;
-				char32_t cp = 0x10000
+				const char32_t cp = 0x10000
 					+ ((static_cast<char32_t>(u) - 0xD800) << 10)
 					+ (static_cast<char32_t>(next) - 0xDC00);
 				PushUTF8CodePoint(ret, cp);
@@ -195,40 +195,40 @@ std::string GeneralUtils::UTF16ToWTF8(const std::u16string_view& string, size_t
 	return ret;
 }
 
-bool GeneralUtils::CaseInsensitiveStringCompare(const std::string& a, const std::string& b) {
+bool GeneralUtils::CaseInsensitiveStringCompare(const std::string_view a, const std::string_view b) {
 	return std::equal(a.begin(), a.end(), b.begin(), b.end(), [](char a, char b) { return tolower(a) == tolower(b); });
 }
 
 // MARK: Bits
 
 //! Sets a specific bit in a signed 64-bit integer
-int64_t GeneralUtils::SetBit(int64_t value, uint32_t index) {
+int64_t GeneralUtils::SetBit(int64_t value, const uint32_t index) {
 	return value |= 1ULL << index;
 }
 
 //! Clears a specific bit in a signed 64-bit integer
-int64_t GeneralUtils::ClearBit(int64_t value, uint32_t index) {
+int64_t GeneralUtils::ClearBit(int64_t value, const uint32_t index) {
 	return value &= ~(1ULL << index);
 }
 
 //! Checks a specific bit in a signed 64-bit integer
-bool GeneralUtils::CheckBit(int64_t value, uint32_t index) {
+bool GeneralUtils::CheckBit(int64_t value, const uint32_t index) {
 	return value & (1ULL << index);
 }
 
-bool GeneralUtils::ReplaceInString(std::string& str, const std::string& from, const std::string& to) {
+bool GeneralUtils::ReplaceInString(std::string& str, const std::string_view from, const std::string_view to) {
-	size_t start_pos = str.find(from);
+	const size_t start_pos = str.find(from);
 	if (start_pos == std::string::npos)
 		return false;
 	str.replace(start_pos, from.length(), to);
 	return true;
 }
 
-std::vector<std::wstring> GeneralUtils::SplitString(std::wstring& str, wchar_t delimiter) {
+std::vector<std::wstring> GeneralUtils::SplitString(const std::wstring_view str, const wchar_t delimiter) {
 	std::vector<std::wstring> vector = std::vector<std::wstring>();
 	std::wstring current;
 
-	for (const auto& c : str) {
+	for (const wchar_t c : str) {
 		if (c == delimiter) {
 			vector.push_back(current);
 			current = L"";
@@ -237,15 +237,15 @@ std::vector<std::wstring> GeneralUtils::SplitString(std::wstring& str, wchar_t d
 		}
 	}
 
-	vector.push_back(current);
+	vector.push_back(std::move(current));
 	return vector;
 }
 
-std::vector<std::u16string> GeneralUtils::SplitString(const std::u16string& str, char16_t delimiter) {
+std::vector<std::u16string> GeneralUtils::SplitString(const std::u16string_view str, const char16_t delimiter) {
 	std::vector<std::u16string> vector = std::vector<std::u16string>();
 	std::u16string current;
 
-	for (const auto& c : str) {
+	for (const char16_t c : str) {
 		if (c == delimiter) {
 			vector.push_back(current);
 			current = u"";
@@ -254,17 +254,15 @@ std::vector<std::u16string> GeneralUtils::SplitString(const std::u16string& str,
 		}
 	}
 
-	vector.push_back(current);
+	vector.push_back(std::move(current));
 	return vector;
 }
 
-std::vector<std::string> GeneralUtils::SplitString(const std::string& str, char delimiter) {
+std::vector<std::string> GeneralUtils::SplitString(const std::string_view str, const char delimiter) {
 	std::vector<std::string> vector = std::vector<std::string>();
 	std::string current = "";
 
-	for (size_t i = 0; i < str.length(); i++) {
+	for (const char c : str) {
-		char c = str[i];
-
 		if (c == delimiter) {
 			vector.push_back(current);
 			current = "";
@@ -273,8 +271,7 @@ std::vector<std::string> GeneralUtils::SplitString(const std::string& str, char
 		}
 	}
 
-	vector.push_back(current);
+	vector.push_back(std::move(current));
-
 	return vector;
 }
 
@@ -283,7 +280,7 @@ std::u16string GeneralUtils::ReadWString(RakNet::BitStream& inStream) {
 	inStream.Read<uint32_t>(length);
 
 	std::u16string string;
-	for (auto i = 0; i < length; i++) {
+	for (uint32_t i = 0; i < length; ++i) {
 		uint16_t c;
 		inStream.Read(c);
 		string.push_back(c);
@@ -292,29 +289,29 @@ std::u16string GeneralUtils::ReadWString(RakNet::BitStream& inStream) {
 	return string;
 }
 
-std::vector<std::string> GeneralUtils::GetSqlFileNamesFromFolder(const std::string& folder) {
+std::vector<std::string> GeneralUtils::GetSqlFileNamesFromFolder(const std::string_view folder) {
 	// Because we dont know how large the initial number before the first _ is we need to make it a map like so.
     std::map<uint32_t, std::string> filenames{};
-	for (auto& t : std::filesystem::directory_iterator(folder)) {
+	for (const auto& t : std::filesystem::directory_iterator(folder)) {
         auto filename = t.path().filename().string();
-		auto index = std::stoi(GeneralUtils::SplitString(filename, '_').at(0));
+        const auto index = std::stoi(GeneralUtils::SplitString(filename, '_').at(0));
-		filenames.insert(std::make_pair(index, filename));
+        filenames.emplace(index, std::move(filename));
 	}
 
 	// Now sort the map by the oldest migration.
 	std::vector<std::string> sortedFiles{};
-	auto fileIterator = filenames.begin();
+	auto fileIterator = filenames.cbegin();
-	std::map<uint32_t, std::string>::iterator oldest = filenames.begin();
+	auto oldest = filenames.cbegin();
 	while (!filenames.empty()) {
-		if (fileIterator == filenames.end()) {
+		if (fileIterator == filenames.cend()) {
 			sortedFiles.push_back(oldest->second);
 			filenames.erase(oldest);
-			fileIterator = filenames.begin();
+			fileIterator = filenames.cbegin();
-			oldest = filenames.begin();
+			oldest = filenames.cbegin();
 			continue;
 		}
 		if (oldest->first > fileIterator->first) oldest = fileIterator;
-		fileIterator++;
+		++fileIterator;
 	}
 
 	return sortedFiles;

dCommon/GeneralUtils.h

@@ -3,17 +3,18 @@
 // C++
 #include <charconv>
 #include <cstdint>
-#include <random>
 #include <ctime>
+#include <functional>
+#include <optional>
+#include <random>
+#include <span>
+#include <stdexcept>
 #include <string>
 #include <string_view>
-#include <optional>
-#include <functional>
 #include <type_traits>
-#include <stdexcept>
+
 #include "BitStream.h"
 #include "NiPoint3.h"
-
 #include "dPlatforms.h"
 #include "Game.h"
 #include "Logger.h"
@@ -32,29 +33,31 @@ namespace GeneralUtils {
 	//! Converts a plain ASCII string to a UTF-16 string
 	/*!
 	  \param string The string to convert
-	  \param size A size to trim the string to. Default is -1 (No trimming)
+	  \param size A size to trim the string to. Default is SIZE_MAX (No trimming)
 	  \return An UTF-16 representation of the string
 	 */
-	std::u16string ASCIIToUTF16(const std::string_view& string, size_t size = -1);
+	std::u16string ASCIIToUTF16(const std::string_view string, const size_t size = SIZE_MAX);
 
 	//! Converts a UTF-8 String to a UTF-16 string
 	/*!
 	  \param string The string to convert
-	  \param size A size to trim the string to. Default is -1 (No trimming)
+	  \param size A size to trim the string to. Default is SIZE_MAX (No trimming)
 	  \return An UTF-16 representation of the string
 	 */
-	std::u16string UTF8ToUTF16(const std::string_view& string, size_t size = -1);
+	std::u16string UTF8ToUTF16(const std::string_view string, const size_t size = SIZE_MAX);
 
+	namespace details {
 		//! Internal, do not use
 		bool _NextUTF8Char(std::string_view& slice, uint32_t& out);
+	}
 
 	//! Converts a UTF-16 string to a UTF-8 string
 	/*!
 	  \param string The string to convert
-	  \param size A size to trim the string to. Default is -1 (No trimming)
+	  \param size A size to trim the string to. Default is SIZE_MAX (No trimming)
 	  \return An UTF-8 representation of the string
 	 */
-	std::string UTF16ToWTF8(const std::u16string_view& string, size_t size = -1);
+	std::string UTF16ToWTF8(const std::u16string_view string, const size_t size = SIZE_MAX);
 
 	/**
 	 * Compares two basic strings but does so ignoring case sensitivity
@@ -62,7 +65,7 @@ namespace GeneralUtils {
 	 * \param b the second string to compare against the first string
 	 * @return if the two strings are equal
 	 */
-	bool CaseInsensitiveStringCompare(const std::string& a, const std::string& b);
+	bool CaseInsensitiveStringCompare(const std::string_view a, const std::string_view b);
 
 	// MARK: Bits
 
@@ -70,9 +73,9 @@ namespace GeneralUtils {
 
 	//! Sets a bit on a numerical value
 	template <typename T>
-	inline void SetBit(T& value, eObjectBits bits) {
+	inline void SetBit(T& value, const eObjectBits bits) {
 		static_assert(std::is_arithmetic<T>::value, "Not an arithmetic type");
-		auto index = static_cast<size_t>(bits);
+		const auto index = static_cast<size_t>(bits);
 		if (index > (sizeof(T) * 8) - 1) {
 			return;
 		}
@@ -82,9 +85,9 @@ namespace GeneralUtils {
 
 	//! Clears a bit on a numerical value
 	template <typename T>
-	inline void ClearBit(T& value, eObjectBits bits) {
+	inline void ClearBit(T& value, const eObjectBits bits) {
 		static_assert(std::is_arithmetic<T>::value, "Not an arithmetic type");
-		auto index = static_cast<size_t>(bits);
+		const auto index = static_cast<size_t>(bits);
 		if (index > (sizeof(T) * 8 - 1)) {
 			return;
 		}
@@ -97,14 +100,14 @@ namespace GeneralUtils {
 	  \param value The value to set the bit for
 	  \param index The index of the bit
 	 */
-	int64_t SetBit(int64_t value, uint32_t index);
+	int64_t SetBit(int64_t value, const uint32_t index);
 
 	//! Clears a specific bit in a signed 64-bit integer
 	/*!
 	  \param value The value to clear the bit from
 	  \param index The index of the bit
 	 */
-	int64_t ClearBit(int64_t value, uint32_t index);
+	int64_t ClearBit(int64_t value, const uint32_t index);
 
 	//! Checks a specific bit in a signed 64-bit integer
 	/*!
@@ -112,19 +115,19 @@ namespace GeneralUtils {
 	  \param index The index of the bit
 	  \return Whether or not the bit is set
 	 */
-	bool CheckBit(int64_t value, uint32_t index);
+	bool CheckBit(int64_t value, const uint32_t index);
 
-	bool ReplaceInString(std::string& str, const std::string& from, const std::string& to);
+	bool ReplaceInString(std::string& str, const std::string_view from, const std::string_view to);
 
 	std::u16string ReadWString(RakNet::BitStream& inStream);
 
-	std::vector<std::wstring> SplitString(std::wstring& str, wchar_t delimiter);
+	std::vector<std::wstring> SplitString(const std::wstring_view str, const wchar_t delimiter);
 
-	std::vector<std::u16string> SplitString(const std::u16string& str, char16_t delimiter);
+	std::vector<std::u16string> SplitString(const std::u16string_view str, const char16_t delimiter);
 
-	std::vector<std::string> SplitString(const std::string& str, char delimiter);
+	std::vector<std::string> SplitString(const std::string_view str, const char delimiter);
 
-	std::vector<std::string> GetSqlFileNamesFromFolder(const std::string& folder);
+	std::vector<std::string> GetSqlFileNamesFromFolder(const std::string_view folder);
 
 	// Concept constraining to enum types
 	template <typename T>
@@ -144,7 +147,7 @@ namespace GeneralUtils {
 
 	// If a boolean, present an alias to an intermediate integral type for parsing
 	template <Numeric T> requires std::same_as<T, bool>
-	struct numeric_parse<T> { using type = uint32_t; };
+	struct numeric_parse<T> { using type = uint8_t; };
 
 	// Shorthand type alias
 	template <Numeric T>
@@ -205,7 +208,7 @@ namespace GeneralUtils {
 	 * @returns An std::optional containing the desired NiPoint3 if it can be constructed from the string parameters
 	*/
 	template <typename T>
-	[[nodiscard]] std::optional<NiPoint3> TryParse(const std::string& strX, const std::string& strY, const std::string& strZ) {
+	[[nodiscard]] std::optional<NiPoint3> TryParse(const std::string_view strX, const std::string_view strY, const std::string_view strZ) {
 		const auto x = TryParse<float>(strX);
 		if (!x) return std::nullopt;
 
@@ -217,17 +220,17 @@ namespace GeneralUtils {
 	}
 
 	/**
-	 * The TryParse overload for handling NiPoint3 by passingn a reference to a vector of three strings
+	 * The TryParse overload for handling NiPoint3 by passing a span of three strings
-	 * @param str The string vector representing the X, Y, and Xcoordinates
+	 * @param str The string vector representing the X, Y, and Z coordinates
 	 * @returns An std::optional containing the desired NiPoint3 if it can be constructed from the string parameters
 	*/
 	template <typename T>
-	[[nodiscard]] std::optional<NiPoint3> TryParse(const std::vector<std::string>& str) {
+	[[nodiscard]] std::optional<NiPoint3> TryParse(const std::span<const std::string> str) {
 		return (str.size() == 3) ? TryParse<NiPoint3>(str[0], str[1], str[2]) : std::nullopt;
 	}
 
 	template <typename T>
-	std::u16string to_u16string(T value) {
+	std::u16string to_u16string(const T value) {
 		return GeneralUtils::ASCIIToUTF16(std::to_string(value));
 	}
 
@@ -246,7 +249,7 @@ namespace GeneralUtils {
 	  \param max The maximum to generate to
 	 */
 	template <typename T>
-	inline T GenerateRandomNumber(std::size_t min, std::size_t max) {
+	inline T GenerateRandomNumber(const std::size_t min, const std::size_t max) {
 		// Make sure it is a numeric type
 		static_assert(std::is_arithmetic<T>::value, "Not an arithmetic type");
 

tests/dCommonTests/TestEncoding.cpp

@@ -15,12 +15,12 @@ TEST_F(EncodingTest, TestEncodingHello) {
 	originalWord = "Hello World!";
 	originalWordSv = originalWord;
 
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'H');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'H');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'e');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'e');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'l');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'l');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'l');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'l');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'o');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 'o');
-	EXPECT_EQ(GeneralUtils::_NextUTF8Char(originalWordSv, out), true);
+	EXPECT_EQ(GeneralUtils::details::_NextUTF8Char(originalWordSv, out), true);
 
 	EXPECT_EQ(GeneralUtils::UTF8ToUTF16("Hello World!"), u"Hello World!");
 };
@@ -29,15 +29,15 @@ TEST_F(EncodingTest, TestEncodingUmlaut) {
 	originalWord = reinterpret_cast<const char*>(u8"Frühling");
 	originalWordSv = originalWord;
 
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'F');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'F');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'r');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'r');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'ü');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'ü');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'h');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'h');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'l');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'l');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'i');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'i');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'n');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'n');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'g');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'g');
-	EXPECT_EQ(GeneralUtils::_NextUTF8Char(originalWordSv, out), false);
+	EXPECT_EQ(GeneralUtils::details::_NextUTF8Char(originalWordSv, out), false);
 
 	EXPECT_EQ(GeneralUtils::UTF8ToUTF16("Frühling"), u"Frühling");
 };
@@ -46,10 +46,10 @@ TEST_F(EncodingTest, TestEncodingChinese) {
 	originalWord = "中文字";
 	originalWordSv = originalWord;
 
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'中');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'中');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'文');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'文');
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'字');
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, U'字');
-	EXPECT_EQ(GeneralUtils::_NextUTF8Char(originalWordSv, out), false);
+	EXPECT_EQ(GeneralUtils::details::_NextUTF8Char(originalWordSv, out), false);
 
 	EXPECT_EQ(GeneralUtils::UTF8ToUTF16("中文字"), u"中文字");
 };
@@ -58,11 +58,11 @@ TEST_F(EncodingTest, TestEncodingEmoji) {
 	originalWord = "👨‍⚖️";
 	originalWordSv = originalWord;
 
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 0x1F468);
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 0x1F468);
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 0x200D);
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 0x200D);
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 0x2696);
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 0x2696);
-	GeneralUtils::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 0xFE0F);
+	GeneralUtils::details::_NextUTF8Char(originalWordSv, out); EXPECT_EQ(out, 0xFE0F);
-	EXPECT_EQ(GeneralUtils::_NextUTF8Char(originalWordSv, out), false);
+	EXPECT_EQ(GeneralUtils::details::_NextUTF8Char(originalWordSv, out), false);
 
 	EXPECT_EQ(GeneralUtils::UTF8ToUTF16("👨‍⚖️"), u"👨‍⚖️");
 };