C++ :: Retrieve Information From Two Files And Put Them In A Single File
Nov 23, 2013
I created a simple program that writes some text to two different text files. how to create a program that would retrieve the information from those two files, and put them in a single file, first the content of input1 and then the content of input2. how to do this. Here is the program that I created that creates the two files.
#include <iostream>
#include <fstream>
#include <string>
int main() {
using namespace std;
string input1;
ofstream fout("input1.txt");
I used to retrieve IP and NIC information by querying windows registry. Now I'm trying to use GetAdapterAddresses() API. Using GetAdapterAddresses() to get IP is not that easy, I need to dig a long deep as I check some examples so far, anyways my question is: Calling this API will return success on all versions of Windows ie: 32bits & 64bits ?
Though Microsoft has not opened any source, where this API is actually retrieving Windows IP information.?. Is it reading Registry or some windows file.
I am trying to retrieve information from a website [URL] .... and have written a C code as follows:
Code: #include <stdlib.h>#include <stdio.h> #include <string.h> #include <curl/curl.h> int main(int argc, char* argv[]) { /* Exit status to return */ int exitStatus = 0;
[Code] .....
The output of this program should be: From To 4504111 B0LPF3 4504111 P62993
The first print option [printf("%s", url)] gives the url output as [URL] .... which on being manually pasted in any web-browser gives the correct output but the program fails to give the output.
cheapest item = Oranges most expensive item = Raspberries total cost = 55.44 shopper = Winnie B. The Pooh
When I run my code however, it doesn't get past shampoo and will continue to add shampoo to the total cost infinitely. How can I change the code to produce the proper information?
I was wondering if i had to say simply retrieve data from a server whether it be simple plain text for variables or download whole files (FTP), what would be the best method for this? I would imagine there is a pretty big difference between retrieving text and downloading files but im just wondering what the best thing would be to research for both.
I'm a beginner with C and wonder how to include single header files (*.h) in to my project. I mean header files which are not included to the standard installation package.
I thought it would work if I just copy the newheader.h file in to library folder c:MinGWinclude, but it didn't work. Is there some kinf of GCC -command or procedure to add these single header files or how it should work?
All of those standard header files are working well and I don't have any problems with them.
I've tried to form together the following code so that I can process multiple files from one user specified directory. However, when I run the program it works great for the first file, but all other files are blank. The problem starts on the following line:
I'm trying to print a single linked list backward with functions/classes. I have created the main file and 3 header files. But I'm getting an error on one of the header files, linkedListIterator after adding #include "linkedListType.h". It says that "linkedLlistType.h" is calling itself. And when I try to run it, I get an error of "too many header files." I have tried changing the headers many times, but nothing seems to work.
.cpp file:
/*(Printing a single linked list backward) Include the functions reversePrint and recursiveReversePrint, as discussed in this chapter, in the class linkedListType. Also, write a program function to print a (single) linked list backward. (Use either the class unorderedLinkedList or the class orderedLinkedList to test your function.)*/
I've created a text file with the numbers from 1-450. After writing code to retrieve and print out the contents in the text file, the compiler only printed out the numbers 124-450. Is there a reason why this is happening?
I am using the OpenCV library (2.3.1-7) and Qt-Creator (2.4.1) and I have this simplified piece of code that reads in an image as cv::Mat and then applies the OpenCV function pyrDown to the cv::Mat.
#include "opencv2/highgui/highgui.hpp" #include "opencv2/gpu/gpu.hpp" using namespace std; using namespace cv; int main()
[code]....
This piece of code runs just fine and puts out the two different images as exected.
What I need to do now is to retrieve the source code of the "pyrDown"-function and then modify it according to the needs of the project that I am working on.
If I comment out the following line
//#include "opencv2/gpu/gpu.hpp"
then this results in the following error message:
'pyrDown' was not declared in this scope.
Apparently, pyrDown only works if #include "opencv2/gpu/gpu.hpp" is included in my code. Therefore the header of pyrDown should be included in this file, correct?
I am using Qt-Creator and the tooltip text for "pyrDown" is as follows:
Therefore, when i checked the file "/usr/include/opencv2/gpu/gpu.hpp" (which is the complete path to the file), looking for the headers of "pyrDown" I expected to find a matching header.
Those are all the lines of code where the character string "pyrDown" is included.To me, being rather a newbie, it is kind of strange that there is no header that matches the call of the function as it was included in my simplified code example at the very top of this post.
What I would like to understand is the following:
1) Is the file gpu.hpp really the one that stores the header that is used for the call in my code example? If so, I would like to understand why this is the case, since the data types of the parameters seem not to match (eg "GpuMat&" vs. "InputArray"). In gpu.hpp there are other files included, using the "#include"-command, but a text search in those files did not find any strings like "pyrDown" in any of them.
2) If gpu.hpp is not the header file that I am looking for, which one is the correct one and where can I find it?
3) The most important part for me is: Where can I retrieve the corresponding .cpp file for pyrDown, since this is crucial to the progress in my project. I have googled a lot and I found lots of .cpp files that were named "pyrDown.cpp" (example: [URL]), but none of them seems to be the one that I am looking for since either the data types in the header are not in accordance with what I expect or there are #include commands for files that I do not have available on my machine. And I assume that any .cpp-file that tries to use files that are not on my computer can not be the one that is used for the call in the code example at the top of this post.
When I try to compile a single file with GCC (I'm using Code::Blocks as my IDE if that is relevant) it gives me a bunch of undefined reference errors. Well, of course they are undefined since I haven't linked anything yet, but why is GCC complaining at compiling time?
The problem is that when I try to link and compile the project in one go I don't get any errors. The references in question are from the GLEW library if that is relevant.
srccharrenderer.o:charrenderer.cpp|| undefined reference to `_imp____glewDeleteBuffers'| srccharrenderer.o:charrenderer.cpp|| undefined reference to `_imp____glewDeleteBuffers'| srccharrenderer.o:charrenderer.cpp|| undefined reference to `glEnableClientState@4'| srccharrenderer.o:charrenderer.cpp|| undefined reference to `_imp____glewBindBuffer'| srccharrenderer.o:charrenderer.cpp|| undefined reference to `glVertexPointer@16'|
How would i get the total amount of elements From the input file(The .dat file) and then store them in a variable?Here is an example to show you what i want. If a line on the .dat file looked like this
1 2 3 4 5 6 7
How would i find the total number of elements? For example the total number of elements in this line would be 7.
The problem is that ... Even though it is reading from a a file, it is not reading a one struct. In this piece of code I'm trying to read the last struct, which should be k... The struct itself is here
The problem is that i dont know how to do because 'getline' won't work i think.
the file looks like this:
******************* Inventory of MyInventory ******************* Some info More info ------------------- 000 Toys 6.25 a short description 126/44 Cards 2.25 some text ******************* Inventory of MyInventory2 ******************* Some info More info ------------------- 000 Toys 6.25 a short description 126/44 Cards 2.25 some text
So what I need to know:
- the name of the Inventory (MyInventory, MyInventory2...)
- the numbers in each row (000,126/44...)
- the name what it is (Toys,Cards...)
- the price (6.25,2.25...)
- and the description(problem here is, that there are not the same amount of words for each description)
I tried it with 'getline' but this is not working because the lines are so different each time.
I want to receive an information from a file. For instance, you created a file name "sample.txt" via fstream and stored a bunch of people's name, address, phone number in that "sample.txt".
Now, I want to see what's stored in this file. Suppose, I wanted some particular guys address, phone number by just typing is his/her name.
How to relate the name with address and phone number of particular people? I just started the file creating so I wanted to know about it.
#include<iostream> #include<conio.h> #include<fstream> #include<string> using namespace std; int main() { ofstream outputData;
I am trying to read in player names (ex: first last) from a text file into the people[].name data struct. I can successfully read in my card file, but I cannot get this to work. I get a seg fault. I believe this is because nothing is actually being read in for my while loops. I can't use std::strings so these must be c-style strings aka char arrays.
// deck of cards // below are initializations #include <iostream> #include <fstream> #include <ctime> #include <stdlib.h> #include <string>
using namespace std; //globals const int maxCards = 52;
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.
I want to take the informaition from this file and save it into a struct the file conteins name age year (in char) and a grade it is somthing like this
file Nikos Tolis 19 A 8 Iwanna Nikolaou 20 B 9 Kwstas Doukas 20 Β 6 Georgios Pappas 19 A 7 Iwannis Lekatis 20 Β 7 Nikos Ntoumas 19 A 5 Maria Oikonomou 20 B 6 Kwstas Argyrou 19 A 10 Irw Ntouma 20 B 8 Leuteris Doukas 19 A 6
I want to read till i found the '32' the space in ascii here is my code so far
Code: #include<stdio.h> #include<string.h> #include<stdlib.h> struct students { char *name; int age;
Create a simple data file like the example shown below containing the 4 dates below plus 10 or more additional dates. The file should include 1 date per line and each date should have the form MonthNumber-DayOfTheMonth-Last2DigitsOfTheYear with no extra spaces. All dates should be in this century. No error checking for invalid dates is necessary.
My Output displays like
February -19,1991
How do I get my program to ignore the dash between the dates?
#include <fstream> #include <iostream> #include <string> #include <cmath> using namespace std; int main(){ const int M = 13;
I'm trying to open a file (contains member information) and store the information in an object, which is then inserted into a linked list. However, the current code just leaves a blank command window hanging with nothing happening.
