It's no bother at all, but you are right I don't understand what you are attempting. It sounds like you are doing something to these 5 copies and then seeing if doing something to them didn't change...

You could just say....

if (mask_bit == 1)
result = original;
else
resilt = altered_pixel;

Becuase if the mask is one bit and the pixel is 8 bits you'd have to do some fussing with stuff to...

So you have pixels represented as some number of shades of gray. And you want to AND them with something? Why AND? Is this some sort of mask where all ON (black? white?) is a mask to include the...

you could, for example, use printf or sprintf or its ilk. Take a look at the specifications for the strings. You can control right or left justification, leading zeros, number of digits after the...

You want to print this bill on a printer or on disk? On which OS? Are you using MFC, which has extensive printer support built in? Is you app a windowing app or a console app (I assume a windowing...

Dave beat me by one minute! Rats! :-)

Ah, well, great minds.....

how about:

char filename[ 256 ]; // or MAX_PATH or whatever
...
sprintf( filename, "%d.txt", i ); // now filename will be 1.txt, 2.txt, whatever.

and run the loop from 1 to < 6 or 1 to <= 5,...

Here is your culpret:

beg=a[0];
end=a[9];

beg should be the bottom of the range to search, in this case 0.
end should be the top of the range to search, in this case n (not 9).

You are...

As Dave says, you won't convince any legitemate system to allow:

free("ERROR");

the equivelent of which you are doing by returning a pointer to "ERROR".

It generally works to return NULL if...

And your question is.... ?

Please don't say "write this for me!"

I don't know what IA-64 and IA-32 refer to. Is that a particular hardware standard?

Typically segfaults of this type are because your CPU demands that shorts be aligned on short boundaries, longs...

You might investigate the std::map template, where you could do something like:

map<string, string> variableMap;

and then fill it in with commands like:

variableMap["CustomerName"] =...

Or since you only have three possabilities, could it be as simple as

if (stricmp( variable_name, "temperature" ) == 0)
<set temp>
else if (stricmp( variable_name, "pressure" ) == 0)
<set...

http://www.google.com/search?hl=en&q=%22space+complexity%22

71,000 answers there!

Code tags would help, yes. See the note about code tags at the top of the forum.

But, offhand, here's what I noticed:
1) I don't see you setting the id number of the node
2) You do a strcpy()...

If the data received is 2 bytes, why can't you use a switch?

#define SWITCH_DATA( L, R ) ((L << 8) | R)

switch (SWITCH_DATA( firstByte, secondByte ))

case SWITCH_DATA( 'A', 'B' ):
<do stuff...

fflush() is one of the standard C routines for file manipulation. It causes the currently pending data, if any, to be 'flushed' (written) to disk. When you call fwrite(), the data may not be...

There are generally two kinds of parameters to a function, those by VALUE and those by REFERENCE. A VALUE parameter is one where the variable's value (it's contents) are passed to the routine,...

That sounds great! Did you have a question, or something we should comment on?

Were you hoping someone has a program lying around that does this? Like, someone who took this class last year? ...

Like this?

virtual void **ReturnArrayOfPointers() = 0;

Replace void with the array of pointer's type (like int, float, MyRec, whatever)

you mean like:

1.2345
1.2344

is the same to 3 figures?

So, couldn't you say

int intX1 = (int)(x1 * figures);

Ok, here's another way to think about pointers.....

Imagine you are at a dog show and there's a row of dogs in front of you. The judge says he wants to see the dogs in order of size. Your job is...

I'm no math major, but the running average idea is something like this:

can you add these as static members to BST? Static because you need this for the whole tree, not just for a single node:
...

And, using statics and globals really undermines the meaning of a recursive function, in my humble opinion. It also makes the function non-thread-safe, which may be ok in this instance but isn't a...

I suppose with floating point numbers you could keep a running average as you go, but why do this extra weirdness when you can get the total and total count recursively? Is it just because that's...

You didn't mention where this is, I can think of two valid places:

GLfloat colours[][3] =
{
{ 1.0, 1.1, 1.2 },
{ 1.3, 1.4, 1.5 },
<and on and on>
};

In this case, the declaration...

Right, you are confusing 'chars' with 'array of chars' and 'array of array of chars'. It would probably help yourself to describe what the variables are ("this is a char", "this is an array of...

How about something along these lines, assuming every node has a value 'myValue' and a left and right child pointer:

int BST::findTotal( int &nodesFound )
{
nodesFound++;
int total =...

It sounds like you changed

sprintf(files_to_open, "/usr/bin/ksh %s", filename);

to

sprintf(&files_to_open, "/usr/bin/ksh %s", filename);

because that would be a char**, not a...

files_to_open has no space reserved for it. You declared it as a char* but didn't 'new' it. So do one of these two things:

char* files_to_open = new char[ kMaxFileSize ]; // don't forget to...

If you were reading names from a file and wanted to make them prettier you could use strlwr() and the like, but here you are manufacturing totally random names in a loop, so you could do something...

inside the loop try:

searchptr=strstr(searchptr+1, line2);

You want to start each subsequent search at one char past where the last search stopped.

Oh, yeah, and move the printf INSIDE the...

Ususally it means you referenced a pointer that is NULL or uninitialized. In your case, 'sp' appears to be an uninitialized pointer.

For small simple loop variables, or very localized intermediate results, I may use single letter variables.

And, of course, for loops, the time-honored values of i,j,k,l left over from FORTRAN are...

The polling idea is something like:

while (BumpersOk())
{
if (!DecideWhatToDo()) break;
if (!BumpersOk()) break;
if (!DoWhatYouDecidedToDo()) break;
if (!BumpersOk()) break;
}

Well, if threads aren't supported by your IDE or the OS that is running on the robot, you're in a world of hurt. You could build your own thread management, but that is pretty advanced.

Is the...

Make a separate thread that monitors the bumper. When the bumper is activated, it calls some routine to immediately shut down the motors, or whatever.

Do you have to poll the bumper switches, or...

Your code tries to read 16 chars from the console, but you say you need to be reading from a file. As Naru points out, you can use fgets, or you can use fgetc() or something similar.

int count =...

Close, but you want to count the number of LINES, and the total number of BYTES you read. How about this pseudocode for the loop:

int ch; // fgetc returns an int, not a char
// skip the for...

Generally, a binary tree is a collection of nodes, each with one 'parent' and two 'children', a 'left' child and a 'right' child. In addition, there would be some data or payload.

But from there,...