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<title>FBB::RandBuffer</title>
<link rev="made" href="mailto:Frank B. Brokken: f.b.brokken@rug.nl">
</head>
<body text="#27408B" bgcolor="#FFFAF0">
<hr>
<h1>FBB::RandBuffer</h1>
<h2>libbobcat-dev_3.19.01-x.tar.gz</h2>
<h2>2005-2013</h2>
<html><head>
<link rev="made" href="mailto:Frank B. Brokken: f.b.brokken@rug.nl">
</head>
<body text="#27408B" bgcolor="#FFFAF0">
<hr>
<h1></h1>
<html><head>
<title>FBB::RandBuffer(3bobcat)</title>
<link rev="made" href="mailto:Frank B. Brokken: f.b.brokken@rug.nl">
</head>
<body text="#27408B" bgcolor="#FFFAF0">
<hr>
<h1>FBB::RandBuffer(3bobcat)</h1>
<h2>libbobcat-dev_3.19.01-x.tar.gz random number streambuf</h2>
<h2>2005-2013</h2>
<p>
<h2>NAME</h2>FBB::RandBuffer - std::streambuf generating random numbers
<p>
<h2>SYNOPSIS</h2>
<strong>#include <bobcat/randbuffer></strong><br>
Linking option: <em>-lbobcat</em>
<p>
<h2>DESCRIPTION</h2>
<p>
<strong>FBB:RandBuffer</strong> objects may be used as a <strong>std::streambuf</strong> of
<em>std::istream</em> objects to allow the extraction of random numbers from the
stream.
<p>
<h2>NAMESPACE</h2>
<strong>FBB</strong><br>
All constructors, members, operators and manipulators, mentioned in this
man-page, are defined in the namespace <strong>FBB</strong>.
<p>
<h2>INHERITS FROM</h2>
std::streambuf
<p>
<h2>CONSTRUCTOR</h2>
<ul>
<li> <strong>Randbuffer(int min, int max, size_t seed = 1)</strong>:<br>
This <strong>Randbuffer()</strong> constructor initializes the random generator. The
seed is used to initialze the random number generator.Random values between
<em>min</em> and <em>max</em> (inclusive) are returned.
</ul>
<p>
<h2>VIRTUAL MEMBERS</h2>
<p>
<ul>
<li> <strong>int underflow()</strong>:<br>
This function is called by <em>std::istream</em> objects using
<strong>Randbuffer</strong>. It produces the next available random number, separating the
random numbers by one blanks space. Random values between <em>min</em> and <em>max</em>
(inclusive) are returned (see the description of the constructor).
</ul>
<p>
<h2>INHERITED MEMBERS</h2>
<p>
Since the class uses public derivation from
<strong>std::streambuf</strong>, all members of this class can be used.
<p>
<h2>EXAMPLE</h2>
<pre>
#include <iostream>
#include <istream>
#include <bobcat/randbuffer>
#include <bobcat/a2x>
using namespace std;
using namespace FBB;
int main(int argc, char **argv)
{
if (argc == 1)
{
cout << "expect: nruns min max seed\n";
return 1;
}
Randbuffer rb(A2x(argv[2]), A2x(argv[3]), A2x(argv[4]).to<size_t>());
istream istr(&rb);
for (int idx = A2x(argv[1]); idx--; )
{
int c;
if (!(istr >> c))
{
cout << "extraction failed\n";
break;
}
cout << "next: " << c << endl;
}
int count = 0;
while (istr.unget())
count++;
cout << "number of successful unget()-calls: " << count << endl;
istr.clear();
istr >> count;
cout << "and read: " << count << endl;
return 0;
}
</pre>
<p>
<h2>FILES</h2>
<em>bobcat/randbuffer</em> - defines the class interface
<p>
<h2>SEE ALSO</h2>
<strong>bobcat</strong>(7), <strong>irandstream</strong>(3bobcat), <strong>rand</strong>(3), <strong>srand</strong>(3),
<strong>std::streambuf</strong>
<p>
<h2>BUGS</h2>
None Reported.
<p>
<h2>DISTRIBUTION FILES</h2>
<ul>
<li> <em>bobcat_3.19.01-x.dsc</em>: detached signature;
<li> <em>bobcat_3.19.01-x.tar.gz</em>: source archive;
<li> <em>bobcat_3.19.01-x_i386.changes</em>: change log;
<li> <em>libbobcat1_3.19.01-x_*.deb</em>: debian package holding the
libraries;
<li> <em>libbobcat1-dev_3.19.01-x_*.deb</em>: debian package holding the
libraries, headers and manual pages;
<li> <em>http://sourceforge.net/projects/bobcat</em>: public archive location;
</ul>
<p>
<h2>BOBCAT</h2>
Bobcat is an acronym of `Brokken's Own Base Classes And Templates'.
<p>
<h2>COPYRIGHT</h2>
This is free software, distributed under the terms of the
GNU General Public License (GPL).
<p>
<h2>AUTHOR</h2>
Frank B. Brokken (<strong>f.b.brokken@rug.nl</strong>).
<p>
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