1 files changed, 9 insertions, 2 deletions
diff --git a/src/common/String.cpp b/src/common/String.cpp
index 1c2ff022..21f3f235 100644
--- a/src/common/String.cpp
+++ b/src/common/String.cpp
@@ -39,13 +39,20 @@ String::String(const_pointer str, Index size) {
   this->capacity_ = size;
 }
 
+String::String(size_type size, value_type ch) : String() {
+  reserve(size);
+  for (Index i = 0; i < size; i++) {
+    append(ch);
+  }
+}
+
 String::String(std::initializer_list<char16_t> l)
     : String(l.begin(), l.size()) {}
 
 #ifdef CRU_PLATFORM_WINDOWS
 String::String(const wchar_t* str) : String(str, GetStrSize(str)) {}
 String::String(const wchar_t* str, Index size)
-    : String(reinterpret_cast<const std::uint16_t*>(str), size) {}
+    : String(reinterpret_cast<const char16_t*>(str), size) {}
 #endif
 
 String::String(const String& other) {
@@ -426,7 +433,7 @@ std::vector<FormatToken> ParseToFormatTokenList(const String& str) {
 void FormatAppendFromFormatTokenList(
     String& current, const std::vector<FormatToken>& format_token_list,
     Index index) {
-  for (Index i = index; i < format_token_list.size(); i++) {
+  for (Index i = index; i < static_cast<Index>(format_token_list.size()); i++) {
     const auto& token = format_token_list[i];
     if (token.type == FormatTokenType::PlaceHolder) {
       current += u"{}";