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// vim:sw=2:ai
/*
* Copyright (C) 2010 DeNA Co.,Ltd.. All rights reserved.
* See COPYRIGHT.txt for details.
*/
#ifndef DENA_STRING_REF_HPP
#define DENA_STRING_REF_HPP
#include <vector>
#include <string.h>
namespace dena {
struct string_wref {
typedef char value_type;
char *begin() const { return start; }
char *end() const { return start + length; }
size_t size() const { return length; }
private:
char *start;
size_t length;
public:
string_wref(char *s = 0, size_t len = 0) : start(s), length(len) { }
};
struct string_ref {
typedef const char value_type;
const char *begin() const { return start; }
const char *end() const { return start + length; }
size_t size() const { return length; }
private:
const char *start;
size_t length;
public:
string_ref(const char *s = 0, size_t len = 0) : start(s), length(len) { }
string_ref(const char *s, const char *f) : start(s), length(f - s) { }
string_ref(const string_wref& w) : start(w.begin()), length(w.size()) { }
};
template <size_t N> inline bool
operator ==(const string_ref& x, const char (& y)[N]) {
return (x.size() == N - 1) && (::memcmp(x.begin(), y, N - 1) == 0);
}
inline bool
operator ==(const string_ref& x, const string_ref& y) {
return (x.size() == y.size()) &&
(::memcmp(x.begin(), y.begin(), x.size()) == 0);
}
inline bool
operator !=(const string_ref& x, const string_ref& y) {
return (x.size() != y.size()) ||
(::memcmp(x.begin(), y.begin(), x.size()) != 0);
}
};
#endif
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