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Search: Posts Made By: ddanbe ; Forum: C++ and child forums
Forum: C++ Mar 26th, 2009
Replies: 14
Views: 1,028
Posted By ddanbe
Looks OK. The switch in the else needs + 1 from case 3 to case 12 Every month from march on needs one day more because of leapyear. Alternatively you could also use one switch and let your...
Forum: C++ Mar 25th, 2009
Replies: 14
Views: 1,028
Posted By ddanbe
Well you have made a function how do you know it works. TEST it.
Make a small program.
Input : year.
Feed year to your leapyear function does it work as expected? Is 1800 a leap year is -200 a...
Forum: C++ Mar 25th, 2009
Replies: 14
Views: 1,028
Posted By ddanbe
What about testing that function in a smal program as pointed out earlier?
For the rest that's up to you, I should start thinking of making a list like so:
jan 0
feb 31
mar 59
apr 90
etc. ...
Forum: C++ Mar 25th, 2009
Replies: 14
Views: 1,028
Posted By ddanbe
Hey! I did not notice until now, look after the and operator : !== is not an operator, use !=
Forum: C++ Mar 25th, 2009
Replies: 14
Views: 1,028
Posted By ddanbe
First don't use an assignment operator in an if statement
year%4 = 0 better use == here.
Second you don't have to declare an extra variable isLeap. Just use return true or return false.
Perhaps...
Forum: C++ Mar 25th, 2009
Replies: 14
Views: 1,028
Posted By ddanbe
Start with the leap year function:
This function must return true or false, it's input is a year value.
Test if the year value is divisible by 100, if so then test if it's divisible by 400, if it...
Forum: C++ Feb 18th, 2009
Replies: 7
Views: 1,033
Posted By ddanbe
It's _fseeki64 I think and it's in <stdio.h>
Forum: C++ Feb 18th, 2009
Replies: 7
Views: 1,033
Posted By ddanbe
fseek32( filepointer , positie , SEEK_SET )
What is the value of positie or is it a typo?
Forum: C++ Feb 2nd, 2009
Replies: 2
Views: 361
Posted By ddanbe
The first term of your sum is always zero, so start with i=2.
Use an if-statement for the first factor of your product. If i is even then it is -1 else it is 1. For the second factor I should use...
Forum: C++ Jan 31st, 2009
Replies: 5
Views: 431
Posted By ddanbe
meal = (t / (tar + 100)) * 100; ???
Why not use meal = t * (tar +100)/100; ?
Forum: C++ Jan 25th, 2009
Replies: 3
Views: 321
Posted By ddanbe
str[i] * multiplier += total;

You are multiplying on the left side of the assignment operator +=.
Note that an assignment operator is not the same thing as an equal sign in math.
This is allowed...
Forum: C++ Jan 24th, 2009
Replies: 6
Views: 415
Posted By ddanbe
#2 will print out more than a million a+space i guess...
clutchkiller:
When you have a file with a million 'a' characters in it and you want to see it (most of the time on a screen) then there is a...
Forum: C++ Jan 23rd, 2009
Replies: 11
Views: 809
Posted By ddanbe
First :
Make all your vars of type float.
The time I have to pay a meal that exceeds the range of a float I stop eating let alone that I have to pay in a range that would exceed a double type!...
Forum: C++ Jan 11th, 2009
Replies: 8
Solved: how does % work
Views: 372
Posted By ddanbe
I thought the question was how the modulo operator works, but it's about odd and even...
Forum: C++ Jan 11th, 2009
Replies: 8
Solved: how does % work
Views: 372
Posted By ddanbe
How it is actually done I dunno.
But if I would write a routine that does it I would continuously subtract 2 from b until zero or until b<2 and return that value.
Forum: C++ Jan 5th, 2009
Replies: 11
Views: 1,056
Posted By ddanbe
Use Vector and do all this in one stroke.
Vector containers are implemented as dynamic arrays.
Also : if line 14 is true you set geneBool to true, perfect!
Set genBool to false in the first place...
Forum: C++ Jan 5th, 2009
Replies: 11
Views: 1,056
Posted By ddanbe
If I understand your explanation well, do the following:

Read a line of your file.
Is line in array?
no: put it there. Increment a counter.
yes or else : read next line.
until EOF
Forum: C++ Jan 3rd, 2009
Replies: 3
Views: 945
Posted By ddanbe
An array is in fact a constant pointer pointing to a block of memory.
So
char message [] = { 'H', 'e', 'l', 'l', 'o', '\0' };
char message [] = "Hello";
is valid : initialisation

message = {...
Forum: C++ Jan 3rd, 2009
Replies: 15
Views: 655
Posted By ddanbe
It seems weird to me that a method called AddSettings would create a global variable you declared earlier.
Forum: C++ Jan 1st, 2009
Replies: 6
Views: 627
Posted By ddanbe
Locate MSVCR80.DLL on your hard drive and put it in c:\windows\system32.
A thing I found in the first hit I get when searching for "allegro MSVCR80"
It was on :...
Forum: C++ Dec 30th, 2008
Replies: 6
Views: 627
Posted By ddanbe
Well in VC++ right click the References in the Solution Explorer to Add Reference then browse for the MSVCR80.dll
Forum: C++ Dec 29th, 2008
Replies: 6
Views: 627
Posted By ddanbe
If you know which dll your problem is half solved.
Forum: C++ Dec 29th, 2008
Replies: 3
Views: 1,124
Posted By ddanbe
Whenyou add a dll you must at least have some information about what is in it. You must also use a using or include clause.
Forum: C++ Dec 28th, 2008
Replies: 13
Views: 1,159
Posted By ddanbe
strange... what if my name is U2 ?
Forum: C++ Dec 28th, 2008
Replies: 13
Views: 1,159
Posted By ddanbe
You can read in a string like this :

string Mystr;
cout << "What's your name? ";
getline (cin, Mystr);
Forum: C++ Dec 28th, 2008
Replies: 13
Views: 1,159
Posted By ddanbe
First declare an array and put your cin in a loop to read in every digit of your bignumber. Check if it's a digit and put it in the array.
Forum: C++ Dec 28th, 2008
Replies: 13
Views: 1,159
Posted By ddanbe
Have you any code?
What are the problems you have with it?
Forum: C++ Dec 27th, 2008
Replies: 8
Views: 736
Posted By ddanbe
Nice.
But why let the value be generic and the name not? Or was that the intention in the first place in which case I have said nothing.
Forum: C++ Dec 26th, 2008
Replies: 7
Views: 578
Posted By ddanbe
Please, please code tags!
http://www.daniweb.com/forums/announcement8-3.html
Forum: C++ Dec 26th, 2008
Replies: 3
Views: 383
Posted By ddanbe
It certainly doesn't harm to know this stuff.
Forum: C++ Dec 25th, 2008
Replies: 14
Solved: GUI?
Views: 772
Posted By ddanbe
GUI existed as of almost 30 years ago.
Consoles were invented before that time to replace a teletypewritermachine (tty) which was a machine producing a papertape with the output(text) of the...
Forum: C++ Dec 25th, 2008
Replies: 5
Solved: ACCOUNT
Views: 470
Posted By ddanbe
What have you written so far?
I assume it should be in C++ since it is posted here.
What kind of problems do you have with your code?
Forum: C++ Dec 25th, 2008
Replies: 7
Solved: error problems
Views: 403
Posted By ddanbe
Leave #include<stdafx.h> out.
Btw:
Computers are not god.
Computers should not be feared.
Use another learn C++ book.
Forum: C++ Dec 16th, 2008
Replies: 8
Solved: Round Buttons
Views: 1,176
Posted By ddanbe
Have you added these files to your solution?
Forum: C++ Dec 16th, 2008
Replies: 8
Solved: Round Buttons
Views: 1,176
Posted By ddanbe
I think this is what you need http://www.codeproject.com/KB/buttons/roundbuttons.aspx
Forum: C++ Dec 15th, 2008
Replies: 4
Views: 488
Posted By ddanbe
Thanks for the clarification.
I saw the forrest but forgot about the trees...
Forum: C++ Dec 15th, 2008
Replies: 4
Views: 488
Posted By ddanbe
When you mark a method of your class as virtual you give the user of your class the possibility to override that method. If you don't, the metod can't be overridden.
Forum: C++ Dec 14th, 2008
Replies: 42
Views: 1,996
Posted By ddanbe
You have a string variable declared as sortList and a method declared as sortList.
Decide what you want, there are systems who can detect this before you even compile things.
Forum: C++ Dec 14th, 2008
Replies: 42
Views: 1,996
Posted By ddanbe
case 1:
Num_Students = i;
for (int ii =0; ii < Num_Students; i++)
scores[ii] = grades[ii].ID
...
Forum: C++ Dec 14th, 2008
Replies: 3
Views: 1,196
Posted By ddanbe
You must more think in objects. What do they have? what do they do? A driver seat is not really needed when driving a car ! (But it is handy if you have one) Think in a more abstract way of driving a...
Showing results 1 to 40 of 61

 


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