Hello,
I have some difficulty to understand the scope of this program adapted from C++ book of D.S. Malik I am reading.
I put the header and the main program as attachment to save space. My problem is the output:
I was expecting Line 9 part would be the same result as Line 9-2 part, but the sum of the two numbers is not right. It is difficult for me to understand why. The problem may be related to die::roll() and die::getNum() functions in this case, but I am not sure.
Also I am aware the rand() function here so each time the number will change. Can somebody elaborate it for me? Thanks a lot!
I'm having a problem getting this to work..
I got 3 files,
start.C - Where i got my main() function
Menu.C & Menu.h - Where I'm trying to use hash_map
start.C
#include <iostream>
#include "Menu.h"
using namespace std;
int main() { /* test code here */ return 0; }
Menu.h ... (1 Reply)
Each thread has a copy of auto variables within a function, but variables
declared as static within a function are common to all threads. To circumvent
this can static variables be placed outside the function. If so, will the
scope of the variable be file only or will it be extern, and will each... (7 Replies)
Hi ,
I'm trying to change the variable value in a while loop , however its not working it seems that the problem with subshells while reading the file.
#!/bin/sh
FLAG=0;
cat filename | while read data
do
FLAG=1;
done
echo $FLAG
Should display 1 instead displays 0 (13 Replies)
Hi,
I am stuck while developing a shell sub-routine which checks the log file for "success" or "failure". The subroutine reads the log file and checks for key word "success", if found it set the variable (found=1). It returns success or failure based on this variable.
My problem is, I can... (2 Replies)
Hi,
I want to know about the variable scope in shell script.
How can we use the script argument inside the function?
fn () {
echo $1 ## I want this argument should be the main script argument and not the funtion argument.
}
also are there any local,global types in shell script?
if... (3 Replies)
Hi, I'm trying to define an MPI_datatype for a structure, then do message passing for this created datatype. However, when I tried to broadcast the initialized data from rank 0, I found that part of the received data at other ranks are not correct. Could you please help me take a look at my code... (0 Replies)
Hello
I am having issues with a script I'm working on developing on a Solaris machine.
The script is intended to find out how many times a particular user (by given userid) has logged into the local system for more than one hour today.
Here is my while loop:
last $user | grep -v 'sshd'... (7 Replies)
Hello,
I met a problem with following code:
#!/usr/bin/perl -w
# test.pl
use strict;
use diagnostics;
use DBI;
my $dbh = DBI->connect(
"DBI:mysql:BibleBook","yifangt","password")
or die("Cannot connect: $DBI::errstr");
my $sql = qq(SELECT * FROM library WHERE isbn =... (2 Replies)
Discussion started by: yifangt
2 Replies
LEARN ABOUT DEBIAN
rolldice
ROLLDICE(6) Games Manual ROLLDICE(6)NAME
rolldice - rolls virtual dice
SYNOPSIS
rolldice [ options ] dice_string dice_string ...
DESCRIPTION
rolldice rolls virtual dice. The dice strings passed on the command line contain information on the dice to roll in a format comparable to
the format used in fantasy role playing games.
OPTIONS -h,--help
returns the usage of diceroll
-v,--version
returns the version of diceroll
-r,--random
uses /dev/random for random number generating
-u,--urandom
uses /dev/urandom for random number generating (default)
-s,--separate
prints out the result of each individual die separately, as well as the operations and totals
DICE STRING FORMAT
The dice string uses the following format:
{#x}{#}d[#|%]{*#}{+/-#}{s#}
The dice string doesn't have to be in the format that I outlined above, but this is the nicest order for me. It will try to parse any dif-
ferent string containing the same sections in the best way it can, and will throw out anything that isn't one of the sections below.
{#}d[#|%]
This is the only required part of the string, and now really isn't even required, as it defaults to 1d6 if not found. The
first number is the number of dice to roll, and the second number is the number of sides the dice have. The numbers rolled
on each die are then added up and given as the result. Hence 3d6 means "roll three six-sided dice, add them together and
return the result". If the first number is left out, then the number of dice defaults to 1. If the second number is not a
number, but a percentage sign, then the number of sides becomes 100 (for a percentage roll).
{#x} This number tells how many times to roll. For example, if you want to roll 3 6-sided dice 6 times, you would say 6x3d6.
This would return six numbers, corresponding to the six different rolls.
{*#} This number tells how many times to multiply the result of each roll. 3d6*100 would return a number in the range of
300-1800, since 3-18 is the range resulting from 3d6, which is then multipled by 100.
{+/-#} This number is the modifier to be added or subtracted, depending on the sign, from each roll. 1d4+1 would result in a range
from 2-5 (1-4 for the die, plus 1). This step is handled *after* the multiplication modifier.
{s#} This number tells the program to drop the # lowest dice rolls. This step is handled *before* the multiplication modifier.
in the order show above. For an extreme example, "3x4d6*5+1s2" would roll four six-sided dice, drop the lowest two, multiply the result by
5, add 1 to that, and repeat the process two more times, for a total of three results.
DIAGNOSTICS
The following error messages may appear on STDERR:
Failure in getting dice attributes
Either memory could not be allocated while parsing the string passed to the rolldice program or an invalid dice string was entered.
Failure in rolling dice
Memory could not be allocated while actually rolling the dice.
Unknown option
Take a wild guess ;)
BUGS
I haven't noticed any yet... rolldice is a quick hack to provide a virtual dice roller for FRPGs that I play. Any improvements are
greatly welcome, as I am not the most experienced C coder...
AUTHOR
Stevie Strickland <sstrickl@cc.gatech.edu>
VERSION
1.10 - 25 Nov 2001
Linux 25 Nov 2001 ROLLDICE(6)