49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
#pragma once
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#include <iostream>
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#include <cstring>
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#include <memory>
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#include "StringValue.h"
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#include "Char.h"
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class Char;
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/* Design decisions:
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* - Everything related to ref-counting is the responsibility of the StringValue class
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* - Anything dynamically allocated is owned (and thus once deleted) by the StringValue class
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* (including itself -- this is possible because of the reference counting mechanism) */
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class String
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{
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private:
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StringValue* _str;
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char* copy_and_concat(const String& str) const;
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char* copy_and_concat(char c) const;
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public:
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String() noexcept;
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String(const char*);
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String(const String&) noexcept;
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String& operator=(String);
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String(String&&) noexcept;
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~String() noexcept;
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friend void swap(String&, String&) noexcept;
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String operator+(const String&) const;
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String& operator+=(const String&);
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String operator+(char) const;
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String& operator+=(char);
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bool operator==(const String&) const;
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const char& operator[](size_t) const;
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Char operator[](size_t);
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size_t size() const noexcept; // does not include null-terminator
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const char* c_str() const;
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friend std::istream& operator>>(std::istream&, String&);
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friend class Char;
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};
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std::ostream& operator<<(std::ostream&, const String&); |