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endl
manipulator function
<ostream>
ostream& endl ( ostream& os );
Insert newline and flush
Inserts a new-line character.
Additionally, for buffered streams, endl flushes the buffer (i.e. writes all unwritten characters in the buffer to the output sequence, see ostream::flush).
Parameters
- os
- Output stream on which the insertion is performed.
Because this function is designed as a manipulator, it can be used directly with no arguments in conjunction with the insertion operator (<<) on output streams (see example).
Return Value
The same stream object on which the operation was performed (parameter os).
Example
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// endl
#include <iostream>
using namespace std;
int main () {
int a=100;
double b=3.14;
cout << a;
cout << endl; // manipulator inserted alone
cout << b << endl << a*b; // manipulator in concatenated insertion
endl (cout); // endl called as a regular global function
return 0;
}
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This example demonstrates different ways of using a manipulator.
Basic template declaration
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template <class charT, class traits>
basic_ostream<charT,traits>& endl ( basic_ostream<charT,traits>& os );
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See also
| flush | Flush stream buffer (manipulator function) |
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