Annex D (normative) Compatibility features [depr]

D.15 char* streams [depr.str.strstreams]

D.15.3 Class istrstream [depr.istrstream]

D.15.3.1 General [depr.istrstream.general]

namespace std { class istrstream : public basic_istream<char> { public: explicit istrstream(const char* s); explicit istrstream(char* s); istrstream(const char* s, streamsize n); istrstream(char* s, streamsize n); virtual ~istrstream(); strstreambuf* rdbuf() const; char* str(); private: strstreambuf sb; // exposition only }; }

The class istrstream supports the reading of objects of class strstreambuf.

It supplies a strstreambuf object to control the associated array object.

For the sake of exposition, the maintained data is presented here as:

(1.1)
sb, the strstreambuf object.

D.15.3.2 istrstream constructors [depr.istrstream.cons]

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explicit istrstream(const char* s);
explicit istrstream(char* s);

Effects: Initializes the base class with istream(&sb) and sb with strstreambuf(s, 0).

s shall designate the first element of an ntbs.

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istrstream(const char* s, streamsize n);
istrstream(char* s, streamsize n);

Effects: Initializes the base class with istream(&sb) and sb with strstreambuf(s, n).

s shall designate the first element of an array whose length is n elements, and n shall be greater than zero.

D.15.3.3 Member functions [depr.istrstream.members]

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strstreambuf* rdbuf() const;

Returns: const_cast<strstreambuf*>(&sb).

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char* str();

Returns: rdbuf()->str().