31 Input/output library [input.output]

31.8 String-based streams [string.streams]

31.8.3 Class template basic_istringstream [istringstream]

31.8.3.2 Constructors [istringstream.cons]

explicit basic_istringstream(ios_base::openmode which);

Effects: Initializes the base class with basic_istream<charT, traits>(addressof(sb)) ([istream]) and sb with basic_stringbuf<charT, traits, Allocator>(which | ios_base::in) ([stringbuf.cons]).

🔗

explicit basic_istringstream(
  const basic_string<charT, traits, Allocator>& s,
  ios_base::openmode which = ios_base::in);

Effects: Initializes the base class with basic_istream<charT, traits>(addressof(sb)) ([istream]) and sb with basic_stringbuf<charT, traits, Allocator>(s, which | ios_base::in)
([stringbuf.cons]).

🔗

basic_istringstream(ios_base::openmode which, const Allocator& a);

Effects: Initializes the base class with basic_istream<charT, traits>(addressof(sb)) ([istream]) and sb with basic_stringbuf<charT, traits, Allocator>(which | ios_base::in, a) ([stringbuf.cons]).

🔗

explicit basic_istringstream(
  basic_string<charT, traits, Allocator>&& s,
  ios_base::openmode which = ios_base::in);

Effects: Initializes the base class with basic_istream<charT, traits>(addressof(sb)) ([istream]) and sb with basic_stringbuf<charT, traits, Allocator>(std::move(s), which | ios_base::in) ([stringbuf.cons]).

🔗

template<class SAlloc>
  basic_istringstream(
    const basic_string<charT, traits, SAlloc>& s,
    ios_base::openmode which, const Allocator& a);

Effects: Initializes the base class with basic_istream<charT, traits>(addressof(sb)) ([istream]) and sb with basic_stringbuf<charT, traits, Allocator>(s, which | ios_base::in, a)
([stringbuf.cons]).

🔗

template<class SAlloc>
  explicit basic_istringstream(
    const basic_string<charT, traits, SAlloc>& s,
    ios_base::openmode which = ios_base::in);

Constraints: is_same_v<SAlloc, Allocator> is false.

Effects: Initializes the base class with basic_istream<charT, traits>(addressof(sb)) ([istream]) and sb with basic_stringbuf<charT, traits, Allocator>(s, which | ios_base::in) ([stringbuf.cons]).

🔗

template<class T>
  explicit basic_istringstream(const T& t, ios_base::openmode which = ios_base::in);
template<class T>
  basic_istringstream(const T& t, const Allocator& a);
template<class T>
  basic_istringstream(const T& t, ios_base::openmode which, const Allocator& a);

Let which be ios_base::in for the overload with no parameter which, and a be Allocator() for the overload with no parameter a.

Constraints: is_convertible_v<const T&, basic_string_view<charT, traits>> is true.

Effects: Initializes the base class with addressof(sb), and direct-non-list-initializes sb with t, which | ios_base::in, a.

🔗

basic_istringstream(basic_istringstream&& rhs);

Effects: Move constructs from the rvalue rhs.

This is accomplished by move constructing the base class, and the contained basic_stringbuf.

Then calls basic_istream<charT, traits>::set_rdbuf(addressof(sb)) to install the contained basic_stringbuf.