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Man Pages


Manual Reference Pages  -  RANDBUFFER (3)

NAME

FBB::RandBuffer - std::streambuf generating random numbers

CONTENTS

SYNOPSIS

#include <bobcat/randbuffer>
Linking option: -lbobcat

DESCRIPTION

FBB:RandBuffer objects may be used as a std::streambuf of std::istream objects to allow the extraction of random numbers from the stream.

NAMESPACE

FBB
All constructors, members, operators and manipulators, mentioned in this man-page, are defined in the namespace FBB.

INHERITS FROM

std::streambuf

CONSTRUCTOR

o Randbuffer(int min, int max, size_t seed = 1):
This Randbuffer() constructor initializes the random generator. The seed is used to initialze the random number generator.Random values between min and max (inclusive) are returned.

VIRTUAL MEMBERS

o int underflow():
This function is called by std::istream objects using Randbuffer. It produces the next available random number, separating the random numbers by one blanks space. Random values between min and max (inclusive) are returned (see the description of the constructor).

INHERITED MEMBERS

Since the class uses public derivation from std::streambuf, all members of this class can be used.

EXAMPLE

#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 << \(dqexpect: nruns min max seed\n\(dq; 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 << \(dqextraction failed\n\(dq; break; } cout << \(dqnext: \(dq << c << endl; }

int count = 0; while (istr.unget()) count++;

cout << \(dqnumber of successful unget()-calls: \(dq << count << endl; istr.clear(); istr >> count; cout << \(dqand read: \(dq << count << endl; return 0; }

FILES

bobcat/randbuffer - defines the class interface

SEE ALSO

bobcat(7), irandstream(3bobcat), rand(3), srand(3), std::streambuf

BUGS

None Reported.

DISTRIBUTION FILES

o bobcat_3.25.01-x.dsc: detached signature;
o bobcat_3.25.01-x.tar.gz: source archive;
o bobcat_3.25.01-x_i386.changes: change log;
o libbobcat1_3.25.01-x_*.deb: debian package holding the libraries;
o libbobcat1-dev_3.25.01-x_*.deb: debian package holding the libraries, headers and manual pages;
o http://sourceforge.net/projects/bobcat: public archive location;

BOBCAT

Bobcat is an acronym of ‘Brokken\(cqs Own Base Classes And Templates\(cq.

COPYRIGHT

This is free software, distributed under the terms of the GNU General Public License (GPL).

AUTHOR

Frank B. Brokken (f.b.brokken@rug.nl).

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libbobcat-dev_3&.25&.01-x&.tar&.gz FBB::RANDBUFFER (3bobcat) 2005-2015

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