Initial commit

arm9/source/core/String.h

@@ -0,0 +1,60 @@
+#pragma once
+#include <string.h>
+#include "StringUtil.h"
+
+template <typename CharType, int MaxLength>
+class String
+{
+    CharType _buffer[MaxLength + 1];
+
+public:
+    String()
+    {
+        _buffer[0] = 0;
+    }
+
+    template<class T, class = std::enable_if_t<std::is_same_v<T, CharType>>>
+    String(const T* const & str)
+    {
+        StringUtil::Copy(_buffer, str, MaxLength + 1);
+    }
+
+    explicit String(const char* str)
+    {
+        StringUtil::Copy(_buffer, str, MaxLength + 1);
+    }
+
+    template<std::size_t N>
+    constexpr String(const CharType(&str)[N])
+    {
+        if (N * sizeof(CharType) <= sizeof(_buffer))
+            memcpy(_buffer, str, N * sizeof(CharType));
+        else
+        {
+            memcpy(_buffer, str, MaxLength * sizeof(CharType));
+            _buffer[MaxLength] = 0;
+        }
+    }
+
+    template<class T, class = std::enable_if_t<std::is_same_v<T, CharType>>>
+    void operator=(const T* const & str)
+    {
+        StringUtil::Copy(_buffer, str, MaxLength + 1);
+    }
+
+    template<std::size_t N>
+    constexpr void operator=(const CharType(&str)[N])
+    {
+        if (N * sizeof(CharType) <= sizeof(_buffer))
+            memcpy(_buffer, str, N * sizeof(CharType));
+        else
+        {
+            memcpy(_buffer, str, MaxLength * sizeof(CharType));
+            _buffer[MaxLength] = 0;
+        }
+    }
+
+    constexpr operator const CharType*() const { return _buffer; }
+
+    constexpr const CharType* GetString() const { return _buffer; }
+};