tmp/tmpeboj65zr/{from.md → to.md}
RENAMED
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| 1 |
+
##### General <a id="istream.general">[[istream.general]]</a>
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+
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+
When a function is specified with a type placeholder of
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+
`extended-floating-point-type`, the implementation provides overloads
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for all cv-unqualified extended floating-point types
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[[basic.fundamental]] in lieu of `extended-floating-{point-type}`.
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``` cpp
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+
namespace std {
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+
template<class charT, class traits = char_traits<charT>>
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class basic_istream : virtual public basic_ios<charT, traits> {
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public:
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// types (inherited from basic_ios[ios])
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using char_type = charT;
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using int_type = typename traits::int_type;
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using pos_type = typename traits::pos_type;
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using off_type = typename traits::off_type;
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using traits_type = traits;
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+
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// [istream.cons], constructor/destructor
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explicit basic_istream(basic_streambuf<charT, traits>* sb);
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virtual ~basic_istream();
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// [istream.sentry], prefix/suffix
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class sentry;
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| 26 |
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// [istream.formatted], formatted input
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+
basic_istream& operator>>(basic_istream& (*pf)(basic_istream&));
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basic_istream& operator>>(basic_ios<charT, traits>& (*pf)(basic_ios<charT, traits>&));
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basic_istream& operator>>(ios_base& (*pf)(ios_base&));
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basic_istream& operator>>(bool& n);
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basic_istream& operator>>(short& n);
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basic_istream& operator>>(unsigned short& n);
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basic_istream& operator>>(int& n);
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basic_istream& operator>>(unsigned int& n);
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basic_istream& operator>>(long& n);
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basic_istream& operator>>(unsigned long& n);
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basic_istream& operator>>(long long& n);
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basic_istream& operator>>(unsigned long long& n);
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basic_istream& operator>>(float& f);
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| 42 |
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basic_istream& operator>>(double& f);
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basic_istream& operator>>(long double& f);
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basic_istream& operator>>(extended-floating-point-type& f);
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basic_istream& operator>>(void*& p);
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basic_istream& operator>>(basic_streambuf<char_type, traits>* sb);
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// [istream.unformatted], unformatted input
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| 50 |
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streamsize gcount() const;
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int_type get();
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basic_istream& get(char_type& c);
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basic_istream& get(char_type* s, streamsize n);
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basic_istream& get(char_type* s, streamsize n, char_type delim);
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basic_istream& get(basic_streambuf<char_type, traits>& sb);
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| 56 |
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basic_istream& get(basic_streambuf<char_type, traits>& sb, char_type delim);
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| 57 |
+
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basic_istream& getline(char_type* s, streamsize n);
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| 59 |
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basic_istream& getline(char_type* s, streamsize n, char_type delim);
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+
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basic_istream& ignore(streamsize n = 1, int_type delim = traits::eof());
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int_type peek();
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basic_istream& read (char_type* s, streamsize n);
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| 64 |
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streamsize readsome(char_type* s, streamsize n);
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| 65 |
+
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basic_istream& putback(char_type c);
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| 67 |
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basic_istream& unget();
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| 68 |
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int sync();
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| 69 |
+
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pos_type tellg();
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| 71 |
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basic_istream& seekg(pos_type);
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| 72 |
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basic_istream& seekg(off_type, ios_base::seekdir);
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| 73 |
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protected:
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| 75 |
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// [istream.cons], copy/move constructor
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basic_istream(const basic_istream&) = delete;
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basic_istream(basic_istream&& rhs);
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// [istream.assign], assignment and swap
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| 80 |
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basic_istream& operator=(const basic_istream&) = delete;
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| 81 |
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basic_istream& operator=(basic_istream&& rhs);
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| 82 |
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void swap(basic_istream& rhs);
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| 83 |
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};
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// [istream.extractors], character extraction templates
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template<class charT, class traits>
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basic_istream<charT, traits>& operator>>(basic_istream<charT, traits>&, charT&);
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template<class traits>
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basic_istream<char, traits>& operator>>(basic_istream<char, traits>&, unsigned char&);
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template<class traits>
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basic_istream<char, traits>& operator>>(basic_istream<char, traits>&, signed char&);
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template<class charT, class traits, size_t N>
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basic_istream<charT, traits>& operator>>(basic_istream<charT, traits>&, charT(&)[N]);
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template<class traits, size_t N>
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basic_istream<char, traits>& operator>>(basic_istream<char, traits>&, unsigned char(&)[N]);
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template<class traits, size_t N>
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basic_istream<char, traits>& operator>>(basic_istream<char, traits>&, signed char(&)[N]);
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}
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```
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+
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+
The class template `basic_istream` defines a number of member function
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signatures that assist in reading and interpreting input from sequences
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controlled by a stream buffer.
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+
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+
Two groups of member function signatures share common properties: the
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*formatted input functions* (or *extractors*) and the *unformatted input
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| 108 |
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functions.* Both groups of input functions are described as if they
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obtain (or *extract*) input *characters* by calling `rdbuf()->sbumpc()`
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| 110 |
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or `rdbuf()->sgetc()`. They may use other public members of `istream`.
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| 111 |
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