A Tour of C++ (C++ In-Depth Series) by Stroustrup Bjarne

Author:Stroustrup, Bjarne [Stroustrup, Bjarne]
Language: eng
Format: epub, mobi, pdf
Publisher: Addison-Wesley Professional
Published: 2013-09-19T00:00:00+00:00

if (cin.eof()) {

// .. all is well we reached the end-of-file ...

}

else if (cin.fail()) { // a potentially recoverable error

cin.clear(); // reset the state to good()

char ch;

if (cin>>ch) { // look for nesting represented by { ... }

switch (ch) {

case '{':

// ... start nested structure ...

break;

case '}':

// ... end nested structure ...

break;

default:

cin.setstate(ios_base::failbit); // add fail() to cin's state

}

}

}

// ...

}

8.5. I/O of User-Defined Types

In addition to the I/O of built-in types and standard strings, the iostream library allows programmers to define I/O for their own types. For example, consider a simple type Entry that we might use to represent entries in a telephone book:

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