C / C++ / MFC

Richard MacCutchan29-May-13 21:38

29-May-13 21:38

Manoj7390 wrote:
Suggest any other way to store bits in C/C++

This has nothing to do with C/C++, it's how computers work. If you will not use the shift operators to store the three bits together then you cannot store them.

Use the best guess

C^hris L^osinger30-May-13 2:06

30-May-13 2:06

Richard MacCutchan wrote:
If you will not use the shift operators to store the three bits together then you cannot store them.

C++

int Answer = u  * 4 + p * 2 + q

Richard MacCutchan30-May-13 2:50

30-May-13 2:50

Which the compiler will almost certainly optimise into shift operations.

Use the best guess

C^hris L^osinger30-May-13 3:16

30-May-13 3:16

possibly. but that extends the definition of "you" quite a bit.

int Answer = u + u + u + u + p + p + q;

Richard MacCutchan30-May-13 5:22

30-May-13 5:22

Chris Losinger wrote:
that extends the definition of "you" quite a bit.

Use the best guess

C^hris L^osinger30-May-13 5:36

30-May-13 5:36

you originally wrote "If you will not use the shift operators to store the three bits together then you cannot store them."

that's the "you".

i think it's reasonable to differentiate between what the programmer writes and what the compiler does.

Richard MacCutchan30-May-13 6:19

30-May-13 6:19

Sorry, but I don't understand what point you are trying to make.

Use the best guess

ThatsAlok29-May-13 21:42

ThatsAlok

29-May-13 21:42

though richard solutions is best.. i am suggesting simpler approach for this in my college days Smile | :)

C++

int result = i*100 + j *10 + k;

Jokes apart! are you looking for it's integer equivalent. i.e. say you have bits like this i=1,j=0,k=0 for which decimal equivalent is 4 ( binary of 100 = 4 i.e. 2² + 0 + 0 )

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Manoj739029-May-13 21:57

Manoj7390

29-May-13 21:57

No i dont need the decimal value of binary. I need to that as it is as 1's and 0's.
if i have u=1; p=0; q=1;
Then i need result = {u,p,q} = "101" (its neither decimal '5' nor decimal 'one hundred one')
Just i need to concatenate bits.
or else help me how to store binary values and which is the data type for that.

ThatsAlok29-May-13 22:25

ThatsAlok

29-May-13 22:25

if you looking for string value as i understand by double quote used by you, you can use sprintf or sprintf_s.

now if you want to store the binary value resulting from you operation (as you mentioned they are only 3 bit coming), you can use char datatype (1 byte) and store the decimal equivalent of it there, internally it store its binary equivalent only,

for say you got 101 which decimal equivalent is 5 and when you store same in char variable, it binary representation would be
00000100

cheers,
Alok Gupta
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Manoj739029-May-13 23:39

Manoj7390

29-May-13 23:39

But i need to concatenate the bits which are in different variables. how to concatenate those.. Since i cannot use shift operator here because of binary.

Richard MacCutchan30-May-13 2:53

30-May-13 2:53

Manoj7390 wrote:
i cannot use shift operator here because of binary.

What on earth are you talking about? I have shown you exactly how to concatenate these fields into a three bit value. If you really cannot understand that simple operation then I don't think you are going to get very far with this project.

Use the best guess

Manoj739029-May-13 23:58

Manoj7390

29-May-13 23:58

Can you please suggest me a program to convert a string into binary, that store in char data type.

C^hris L^osinger30-May-13 2:10

30-May-13 2:10

char * p = "101";
char * pEnd;
int val = strtol(p, &pEnd, 2);
char charval = (char)val;

this may fail if p is more than 7 bits long (since that could overflow a signed char).

COURSE SCHEDULING PROGRAM IN C++

Er.Rishi Sharma29-May-13 6:12

Er.Rishi Sharma

29-May-13 6:12

I want some help developing a program in C++ that creates course scheduling. Want a start and a good thinking.

Richard MacCutchan29-May-13 6:49

29-May-13 6:49

I think you have us confused with rentacoder.

Use the best guess

Er.Rishi Sharma29-May-13 7:44

Er.Rishi Sharma

29-May-13 7:44

No...m not here hiring a coder to do this work for me...just want a expert guidance.. thats it

David Crow29-May-13 9:25

David Crow

29-May-13 9:25

Ok, so show us what you've got so far and we'll guide you. Read #2 here.

For starters, what is course scheduling? I can come up with at least a dozen descriptions for that and may not even get close to what you are after. Is this a console application, or does it have a GUI? Will it be reading from a file? What does the output look like?

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Richard MacCutchan29-May-13 11:51

29-May-13 11:51

I think you misunderstand what's on offer here. We can answer specific questions but what you are asking for is far too broad for these forums. You need to go and do some research for yourself and come back here when you have a specific technical question.

Use the best guess

ThatsAlok29-May-13 21:44

ThatsAlok

29-May-13 21:44

Rishi S wrote:

I want some help developing a program in C++ that creates course scheduling. Want a start and a good thinking.

what it your initial analysis about project, like IDE, your initial thinking etc?

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You