Tie::FlipFlop - Alternate between two values.
use Tie::FlipFlop; tie my $flipflop => Tie::FlipFlop => qw /Red Green/; print $flipflop; # Prints 'Red'. print $flipflop; # Prints 'Green'. print $flipflop; # Prints 'Red'.
Tie::FlipFlop allows you to tie a scalar in such a way that refering to the scalar alternates between two values. When tying the scalar, exactly two extra arguments have to be given, the values to be alternated between.
Tie::FlipFlop
Assigning to the scalar leads to a fatal, but trappable, error.
The current sources of this module are found on github, git://github.com/Abigail/tie--flipflop.git.
Abigail <cpan@abigail.be>.
Copyright (C) 1999, 2009 by Abigail
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
To install Tie::FlipFlop, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Tie::FlipFlop
CPAN shell
perl -MCPAN -e shell install Tie::FlipFlop
For more information on module installation, please visit the detailed CPAN module installation guide.