From 0b5c16f6b35f7144b34996d8c77f370bcbcf150c Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 10 Mar 2022 16:01:56 +0800
Subject: ...

---
 include/cru/common/String.h                  | 17 ++++++++++++++++-
 include/cru/common/StringToNumberConverter.h | 28 ++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)

(limited to 'include/cru')

diff --git a/include/cru/common/String.h b/include/cru/common/String.h
index 9ec494c6..7bbbecfb 100644
--- a/include/cru/common/String.h
+++ b/include/cru/common/String.h
@@ -356,7 +356,22 @@ class CRU_BASE_API StringView {
 CRU_DEFINE_COMPARE_OPERATORS(String)
 
 inline String operator+(const String& left, const String& right) {
-  String result(left);
+  String result;
+  result += left;
+  result += right;
+  return result;
+}
+
+inline String operator+(String::value_type left, const String& right) {
+  String result;
+  result += left;
+  result += right;
+  return result;
+}
+
+inline String operator+(const String& left, String::value_type right) {
+  String result;
+  result += left;
   result += right;
   return result;
 }
diff --git a/include/cru/common/StringToNumberConverter.h b/include/cru/common/StringToNumberConverter.h
index e68d12a6..b5118de6 100644
--- a/include/cru/common/StringToNumberConverter.h
+++ b/include/cru/common/StringToNumberConverter.h
@@ -1,6 +1,8 @@
 #pragma once
 #include "Base.h"
 
+#include <ostream>
+
 namespace cru {
 struct StringToNumberFlags {
   constexpr static unsigned kNoFlags = 0;
@@ -12,10 +14,30 @@ struct StringToNumberFlags {
 };
 
 struct StringToIntegerConverterImplResult {
+  StringToIntegerConverterImplResult() = default;
+  StringToIntegerConverterImplResult(bool negate, unsigned long long value)
+      : negate(negate), value(value) {}
+
   bool negate;
   unsigned long long value;
 };
 
+inline bool operator==(const StringToIntegerConverterImplResult& left,
+                       const StringToIntegerConverterImplResult& right) {
+  return left.negate == right.negate && left.value == right.value;
+}
+
+inline bool operator!=(const StringToIntegerConverterImplResult& left,
+                       const StringToIntegerConverterImplResult& right) {
+  return !(left == right);
+}
+
+inline std::ostream& operator<<(
+    std::ostream& stream, const StringToIntegerConverterImplResult& result) {
+  return stream << "StringToIntegerConverterImplResult("
+                << (result.negate ? "-" : "") << result.value << ")";
+}
+
 /**
  * \brief A converter that convert number into long long.
  */
@@ -36,6 +58,12 @@ struct StringToIntegerConverterImpl {
   StringToIntegerConverterImplResult Parse(
       const char* str, Index size, Index* processed_characters_count) const;
 
+  template <std::size_t Size>
+  StringToIntegerConverterImplResult Parse(
+      const char (&str)[Size], Index* processed_characters_count) const {
+    return Parse(str, Size - 1, processed_characters_count);
+  }
+
   unsigned flags;
   /**
    * \brief The base of the number used for parse or 0 for auto detect.
-- 
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