I want to replace what is in a specific sector with value inside a buffer(dummy value). This code will read what is inside a specific sector. To make sure it works it display what is inside the sector and it displays the chosen dummy value. (the two cout's in main)
What I want to do is to replace the dummy value with what is inside the specific sector. So if the dummy value is '0', I want to replace what is in sector 285 with '0'.
I am trying to write a to a specific sector in a flash drive. The problem is that it will only allow me to write to sectors 0 to 15. When I try sector 16 or higher nothing happens, but in sector 0 to 15 is is working fine.
#define BUFFER_SIZE 512 int main(void) { FILE *volume; int k = 0; long long sector = 0; char buf[BUFFER_SIZE] = {0};
I can access a physical device to read a specific sector in a USB hard drive. But my question is how can I Write to a specific sector? Lets say I want to replace what is in a specific sector of a hard drive with a new data.
I'd like to be able to add additional class-methods through lua for any classes that I've bound in c++, but I'm unsure how to do it.
The problem is that luabind uses a function as the __index-metamethod for any bound classes instead of a table, so I don't see a way to access the class-methods at all.
What I essentially want to do is to add a lua-function to the list of methods for this class, and be able to overwrite existing ones:
local t = tableOfClassMethods local r = t.TestFunc -- Reference to the c++-function we've bound t.SomeFunction = function(o) end -- New function for all objects of this class t.TestFunc = function(o) end -- Should overwrite the c++-function of the same name
I was wondering if there is a -> simple <- way to overwrite existing text in a masked texbox...
Example: I have a masked textbox, where you can insert dates. That means that you can enter only numbers for the day, month and year.
If I have to do it programmatically, there is no problem... I already have some ideas how I could do something like that, but I would like to know if VS has any parameter or any option I only have to activate.
so I wrote this code in class today and I'm almost done but I need to come up with some sort of equation to add up all the total values. The problem is I am reading data off a txt file so it's all being read as one thing. I don't know how to get each specific value and add them all together. This is my code so far.
I end up multiplying the amount by the price to get the total value as shown in the code above. Now I just don't know how to add the total value of each item to get the total overall value. Also I haven't used invTotal because I want that to be the overall total.
How do I return a specific value from a function in order for me to cout it in my int main?
In this case i have solved for a value sigma1 in my function but i want to use the value of sigma1 in my int main also and in other places so how would i do that?
Basically I am creating a game and I need the ai to look for specific buttons. At the moment this is the code I have, and what it does is it makes the ai look for any random button that has't already been clicked.
Code:
private Button look_for_spaces() { Console.WriteLine("Looking for spaces"); Button b = null; foreach (Control c in Controls) { b = c as Button; // performs a cast
[Code] .....
Now what I'm trying to do is make the ai go through 4 searches in steps instead of looking for any button. I want it first to look for buttons 1, 2 and 3, if there's a space in any then it will be clicked but if all of them are already clicked it will look for spaces in buttons 4, 5 and 6 and so on if that makes sense. But i'm not too sure how I would do it.
I want to get the value of "Skateboard" on file. So I need to read 9 lines. On the 9th line, the gets() loop will stop. But, what if I only want to get the value of "Skateboard" as integer (87) and not a string? Also, is it possible to scan the value of Skateboard if it's located on a different (or unknown) line?
im having trouble with a function im writing. Its supposed to find the minimum value in an array and return the location of that value heres what i have so far :
int findLowest (int numb []) { // findLow will hold the subscript of the lowest value in the array int findLow = numb[0]; int x; for (x = 0; x < 5; x++){ if (numb[x] < findLow) findLow = x; } return findLow; }
I'm trying to open a text file with the name "text.txt", for the purpose of only displaying in the console an specific part of the text file. For example, if I got "This is a test [TEXT] This is the message that should display [/TEXT] this is the end of the file", I want only "This is the message that should display" to be the output, the thing is that I can't imagine anyway of doing that. what I should do?
Code: Primitive<uint64_t> b = 0xCCCCCCCC00000000; I need to save the first 31 (most important) bits - 7FFFFFFE.
I found this solution in the Internet:
Code: start = (((b)>>(first)) & ((1<<(((last+1)-(first))))-1)); but in my case for this code: Code: Primitive<uint64_t> start = (((b)>>(32)) & ((1<<(((63+1)-(32))))-1));
I'm trying to add more student information to the specific txt file. I did struct my student information and separated it with an array with max size of 200.
The inside of my current file looks like
Toshi Aka Nonal Donald
The first one represent student[0] and next one is student[1] and so on till student[199]. Right now, only 4 space is occupied, which means the array has information till student[3] but not from student[4] (I guess it has null condition).
What I want to do is, I want to add a new student information to student[4] and till student[199] once at each time.
So, my prompt will look like Would like to add a new student? Y/N (if yes goes to below statement and exit if NO) Hi. Please enter the information of new student. ___________ Student added. Please press any key to continue.
If the key is pressed, it goes back to my initial prompt and continues till I press N.
I sure I'm not using for loop to do this thing, because I'm adding student name one by one.
However, the array is already occupied by other student name till student[3] so, I want to add a new student information to student[4] (I don't want to overwrite the current information). And if student[4] is occupied, then [5] and so on.
This code is working totally fine. Right now, I'm trying to update a specific data from the student info. Let's say I'm trying to update my student number of Daniel. So, in this case, I want to replace 6744590 to some other student number. I think I have to use fseek() or rewind() and use fputs() but, I don't know how I should decide where to look.
In my calculator, I am trying to make it so that you put enter 1 to add, 2 to subtract, 3 to multiply, and 4 to divide. I am facing the issue of making it so that you must enter a number, however instead of it being any number, it must be 1, 2, 3, or 4, and if it is not any of those numbers, you must re-enter the number. Here is a little snippet of my code:
Code:
printf("Please enter 1 to add, 2 to subtract, 3 to multiply, or 4 to multiply: "); while (scanf("%d", &input) != 1) { while (getchar() != ' '); printf("Invalid option. Please try again: ");
How would one go about doing this? I am very fond with Windows I/O, but not so much with this subject. I am decent with fstream, probably not as skilled at it as I should be, but I assume <fstream> would be a better choice, since it isn't locked to Windows.
Anyway, say I have a .txt file like this:
Bill is a cow. Bill likes meat. Bob is a pig. Bob and Bill are friends.
And I want to count the number of times "Bill" is written. How would I do that?
