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#ifndef _STRING_
#define _STRING_
// For size_t
#include <string.h>
typedef unsigned __INT16_TYPE__ char16;
typedef unsigned __INT32_TYPE__ char32;
namespace std {
template <typename T>
class allocator {};
template <typename T>
class char_traits {};
template <typename C, typename T = char_traits<C>>
struct basic_string_view;
template <typename C, typename T = char_traits<C>, typename A = allocator<C>>
struct basic_string {
typedef size_t size_type;
typedef basic_string<C, T, A> _Type;
basic_string();
basic_string(const C *p, const A &a = A());
basic_string(const C *p, size_type count);
basic_string(const C *b, const C *e);
~basic_string();
const C *c_str() const;
const C *data() const;
bool empty() const;
size_type size() const;
size_type length() const;
_Type& append(const C *s);
_Type& append(const C *s, size_type n);
_Type& assign(const C *s);
_Type& assign(const C *s, size_type n);
int compare(const _Type&) const;
int compare(const C* s) const;
int compare(size_type pos, size_type len, const _Type&) const;
int compare(size_type pos, size_type len, const C* s) const;
template<class StringViewLike>
int compare(size_type pos1, size_type count1, const StringViewLike& t) const;
size_type find(const _Type& str, size_type pos = 0) const;
size_type find(const C* s, size_type pos = 0) const;
size_type find(const C* s, size_type pos, size_type n) const;
size_type rfind(const _Type& str, size_type pos = npos) const;
size_type rfind(const C* s, size_type pos, size_type count) const;
size_type rfind(const C* s, size_type pos = npos) const;
size_type rfind(C ch, size_type pos = npos) const;
_Type& insert(size_type pos, const _Type& str);
_Type& insert(size_type pos, const C* s);
_Type& insert(size_type pos, const C* s, size_type n);
constexpr bool starts_with(std::basic_string_view<C, T> sv) const noexcept;
constexpr bool starts_with(C ch) const noexcept;
constexpr bool starts_with(const C* s) const;
_Type& operator[](size_type);
const _Type& operator[](size_type) const;
_Type& operator+=(const _Type& str);
_Type& operator+=(const C* s);
_Type& operator=(const _Type& str);
_Type& operator=(const C* s);
static constexpr size_t npos = -1;
};
typedef basic_string<char> string;
typedef basic_string<wchar_t> wstring;
typedef basic_string<char16> u16string;
typedef basic_string<char32> u32string;
template <typename C, typename T>
struct basic_string_view {
typedef size_t size_type;
typedef basic_string_view<C, T> _Type;
const C *str;
constexpr basic_string_view(const C* s) : str(s) {}
const C *data() const;
bool empty() const;
size_type size() const;
size_type length() const;
size_type find(_Type v, size_type pos = 0) const;
size_type find(C ch, size_type pos = 0) const;
size_type find(const C* s, size_type pos, size_type count) const;
size_type find(const C* s, size_type pos = 0) const;
size_type rfind(_Type v, size_type pos = npos) const;
size_type rfind(C ch, size_type pos = npos) const;
size_type rfind(const C* s, size_type pos, size_type count) const;
size_type rfind(const C* s, size_type pos = npos) const;
constexpr bool starts_with(basic_string_view sv) const noexcept;
constexpr bool starts_with(C ch) const noexcept;
constexpr bool starts_with(const C* s) const;
static constexpr size_t npos = -1;
};
typedef basic_string_view<char> string_view;
typedef basic_string_view<wchar_t> wstring_view;
typedef basic_string_view<char16> u16string_view;
typedef basic_string_view<char32> u32string_view;
std::string operator+(const std::string&, const std::string&);
std::string operator+(const std::string&, const char*);
std::string operator+(const char*, const std::string&);
bool operator==(const std::string&, const std::string&);
bool operator==(const std::string&, const char*);
bool operator==(const char*, const std::string&);
bool operator!=(const std::string&, const std::string&);
bool operator!=(const std::string&, const char*);
bool operator!=(const char*, const std::string&);
bool operator==(const std::wstring&, const std::wstring&);
bool operator==(const std::wstring&, const wchar_t*);
bool operator==(const wchar_t*, const std::wstring&);
size_t strlen(const char* str);
}
#endif // _STRING_
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