C++ :: Opening A File In Void Function

Feb 26, 2013

how do you open a file inside of a void function

this is the code i have

#include <iostream>
#include <fstream>
#include <sstream>

[Code]....

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C++ :: How To Output Void Function On A Text File

Feb 12, 2013

So I am writing this code that analyzes a file called "analysis.txt" and prints out in an ouput file (called "report.txt") the results of the analysis, i.e.,(the frequency of all alphabet letters present in the file).

I am having trouble with outputing on the file2.

here is what I have:

Code:

#include<iostream>
#include<fstream>
using namespace std;
ifstream file1;

[Code]....

I tried to lose the "<<" after the file 2, but it's still giving me an error. how to output a void function on a text file?

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C++ :: Inputting TXT File Into 2 Parallel Arrays Via Void Function

Nov 10, 2014

I have a .txt file that I need to input into two parallel arrays. The first array needs to be on dimension and the second needs to be two dimensions.

This is a sample from the .txt file:

Australia62.762.163.359.7
Austria052.853.154.6
Belgium30.430.327.525.3
Canada61.356.257.754.5
Chile026.425.431.1
CzechRepublic038.327.325.2
Denmark65.067.162.355.0
Estonia51.732.929.834.3
Finland55.242.942.143.3
France35.728.330.228.8
Germany56.447.242.646.6
Greece30.326.925.013.1
Hungary032.521.818.6
Iceland068.271.666.0

this is what I have for code so far:

#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>

using namespace std;
const int SIZE = 40;
const int COLUMN = 5;
void getData(ifstream& inf, string n[], double tstData[][COLUMN], int count);

[Code] .....

when I compile and run the code and have it display it does not read the first item into the 1-d array, instead it appears to read the 4th number from the left into the 1-d array and then into the second spot in the 2-d array, then again in its proper place and finally it has this number repeating through the rest of the arrays:

-92559631349317830000000000000000000000000000000000000000000.00 followed by the number 59.7 from the .txt and the long number again.

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C++ ::  Why Every First Function Of Each File Get Error - Multiple Definition Of Void Pointer

May 6, 2014

I declared all functions in header file, such as:

bool readCase();

bool meshing();
bool readMesh();

bool calculateFlowfield();
bool readFlowfield();

bool calculateEvaporation();

And then I define them in separated .cpp files, each .cpp file include the header, but I got multiple definition error, why?

Even the int main() function, which only decalred and defined once got this error, why?

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C :: Opening A Data File Or Not

Jul 18, 2013

I have attempted a couple of different times to open a .txt file in a program, however it always goes to the "file was not opened."

Code:

#include <stdio.h>
#include <stdlib.h>
int main()
{
FILE *inFile;

[Code]....

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C++ :: Opening A File Within A Directory

Apr 26, 2013

I have problems opening a file within a directory.

#include <dirent.h>
#include <string>
#include <vector>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

[Code] .....

Error Message:
$ ./dirsearch ~/Documents/College/textfiles/
[..]
[yomama.txt]
Error : Failed to open entry file - No such file or directory

Here are my current file permissions:
textfiles$ ls -l
total 8
-rw-rw-rw- 1 jav jav 7 Apr 26 13:14 moretext.txt
-rw-rw-rw- 1 jav jav 10 Apr 26 12:38 yomama.txt

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C++ :: CPP File Not Opening Correctly?

Nov 2, 2014

When I try to open the cpp source in Visual Studio, it just opens a blank notepad window. The cpp file says its 4 kb and there was code in it.

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C/C++ :: How To Print PDF File Without Opening It

Feb 21, 2015

I would like to know what is the best compiler for a very simple program. I'd like to be able to print a pdf file without opening it.

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C++ :: How To Tell If File Is Locked Without Opening

Dec 11, 2013

I need to find if a file is locked, but I dont want to open the file as I will be checking 1000's of files.

can I do that in C++ or VC++

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C :: Opening A File For Read Only On Screen

Apr 4, 2013

How to open a file and just print what is in that file on the screen. I though maybe I had the directory wrong but putting G: or G: give me the same result. When I select 1 it just goes to the next line and doesn't print anything.

Code:
int getchoice(void)
{
int num;
int choice;
FILE* outputfile;

[Code] ....

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C :: Opening Audio File Using Language

Sep 6, 2013

how to open an audio file using c. write a code to open an audio file.

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C :: Opening File - Read / Write

Aug 5, 2013

this is my read/write functions based the read from the last post! then went nuts with it! used the %19s%*s on the write to the file, solved all the probs on the read side! but any refining on this would be great. This is another program that i started with the forums, and started going my own direction!

Code:

void WriteAccount(int account,char *a[])
{
FILE *fptr;
char Memo[20];
char buff[20];
double Amount;
struct tm *sTm;
}

[code]....

the a[] is a string array with bank account names, and Account is the number on the menu based list.

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C :: Opening File And Copy String To That In Other

Jun 22, 2014

I am getting an error when i try to open FILE which user must enter then program must open that file i an function and copy string from that file in other .

Error is expression (stream !=NULL)

insert Code:
#include <stdio.h>
#include <stdlib.h>

void FileCopy(char a[],char b[]);
void main() {
char a[40],b[40];

[Code] ....

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C++ :: Opening File Using Variable (Char Or Int)

Mar 14, 2013

Can we open a file in c++ using a variable(either character or int)?

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C++ :: Opening User Input File Name?

Jun 17, 2013

why this is looping in an error message. I am inputting the entire file name when I run the program and it just keeps falling into my "if(!inputfile)" statement. Let me know if there is anything I'm just not seeing.

#include "File.h"
#include <iostream>
#include <fstream>
#include <string>

[Code]....

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C++ :: Error Opening File In Input

Nov 8, 2014

ofstream infile;
infile.open("Input.txt");
if(infile.fail()) {
cout << "Error Opening File in Input" << endl;
system("pause");
exit(1);
}

So I'm trying to see if it fails, but if i change "Input" name would the computer just create a new file name of it for example if i change "Input" to "asdf" the computer is just going to create "asdf" how do i fix it.

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C++ :: Opening And Reading Text File

Nov 6, 2013

My project includes opening and reading a text file ("customers.txt"). This is my text file:

6
Joe
P 10.02 Y
Mary
r 15.50 N
Dan
U 19.00 y
Victoria
R 6.50 y
Nick
n 0 Y
Vigo
p 18.27 N

I wrote this code, but it seems not to find the text file.

#include <iostream>
#include <fstream>
using namespace std;
int main() {
ifstream inputFile;
int number;

[Code] ......

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C Sharp :: Opening A File By Using The Extension?

Apr 24, 2013

The code below is used to return a file path.

 private string BrowseJournalFile(string startRelativePath)
        {
            string str = "Journal files (*.log)|*.log|All files (*.*)|*.*";
            return PathTools.BrowseFile(startRelativePath, str, this.RootPath);    
        }

So once I click browse I get something like "E:New Files" But there is this .log file in this folder which I want to automatically store in this path.

Right now I have to click on this .log file and then select open. Is there a way I can directly load the file.I have been trying to use the FileStream but no luck.

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C++ :: Wfopen And Fopen Not Opening File

Mar 16, 2012

_wfopen and fopen don't open exist file... File name I viewed during debugging

Code:

wchar_t *CurrentDir = new wchar_t[512];
GetModuleFileNameW(NULL, CurrentDir, 512);
int sz = wcslen(CurrentDir);
for (int i = sz-1;;i--) {

[Code] .....

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C++ :: Pass 2 Arrays Into Void Function And Return Values To One Function?

Feb 12, 2014

I'm trying to pass 2 arrays into a void funtion, and return values to one function.

this is the the program I'm working with, after I'm done I have to split it into 3 files, a header, a main, and a separate cpp file for the functions to live in.

#include <iostream>
using namespace std;
void processArrary(int numberCount[], int Numbers[], int intnumberSize, int numberCountSize);
int main() {
int Scores[26] = {76, 89, 150, 135, 200, 76, 12, 100, 150, 28, 178, 189, 167, 200, 175, 150, 87, 99, 129, 149, 176, 200, 87, 35, 157, 189};
int numberCount[8] = { 0 };

[code]...

The goal of this program is to separate and count the groups of numbers then output the amount of numbers in each group. Near as I can tell, everthing should work, but I'm getting all zeros to be displayed in each group.

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C/C++ :: Error Handling For File Opening And Reading

Apr 23, 2014

I am writing to write a program and performs the following tasks

- Reading a file (txt file contains some temperature values)
- Display the temperature values (contents of the file)
- Calculating the average of the temperature values in the file.
- finds the maximum and minim value of temperature in the file.

The program is user interactive and waits for the user input and process according to his input (choice)

I have managed to complete the program and covered all the expect except the error handling for file opening and reading, although I have managed to do it for the part one part (i.e for the choice == 1)

I can repeat it for the other choices (i.e for 2, 3 ) but I do not want to repeat the code and do it in a different function or do it once for all. While making an attempt I can not handle the rest of the program and all the program turns into a mess.

#include <iostream>
#include <fstream>
#include <iomanip>
int menu();
int myChoice(char);
char inputValidating();

[Code] .....

Need Error handling for file opening and Reading that is used once, So far I have managed to do it for choice 1

Text file can be found in the attachment

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C++ :: Opening Files In Hex Mode To Compress File Size

Sep 10, 2014

I have an idea which i will try to implement in C++,I want to compress file size through making my own numbering system which is 80-based number, I do really want to know whether this even possible ? I learnet that Hexadecimal uses symbols like A, B, C, D, E, F to represent 10,11,12,13,14,15 -- and that's what i want to do to my own numbering system but in a bigger scale .if possible: How can i use C++ to open a file in Hex mode ?

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Visual C++ :: Opening A File From Local Path - GetStatus Failed?

Aug 1, 2013

I am trying to open a file from local Path by the follwing code

CString csRegExtractFileRemote;
CFileException ef;
CFileStatuscfsStatus;
CFile cfSAP;
csRegExtractFileRemote = "c:SWRemoteFilesample.txt";

[Code] ....

Compilation is success full ,but i am observing that some junk value is there in the path variable. After Reaching If statement cursor went to final return statement ...

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C++ :: Void As Function Argument

Mar 24, 2014

I was reading about void as function argument, but I did not fully understand it's meaning in C.

In C++
void foo(void) {}
and
void foo() {}

are the same. It means no arguments for foo function. But in C it's different. First function means the same as in C++, but second means

In C, an empty parameter list means that the number and type of the function arguments are unknown. But if it is unknown you can't use this arguments if user specifies same. Because here are no variables to store them. So doesn't result are the some? You do not get any arguments. O do I can get this arguments from some hidden variable?

For example.

void foo() {
printf("%d", var);
}
foo(5);

It is very unclear for me. Do this apply to main function too?

int main(void)
int main()

or can I use arguments given to int main() like given to int main(int argc, char* argv[])

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C++ :: Using Break In Void Function That Does Not Contain A Loop

Jan 14, 2015

I need this break in my main function, but I'm not allowed to put it in void since void is not located in a loop. How can I solve this?

Code:
#include <iostream>#include <string>
using namespace std;
void login(string x, string y);
string username;
string password;
string x;
string y;

[Code] ....

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C++ :: Multiplication Table In A Void Function?

Jan 20, 2015

I wanted to make a multiplication table.

Here's the code:

#include<iostream>
#include<conio.h>
using namespace std;
void initArray(int arg1[50][50], int r, int c) {
int val=1;
for(int row=0; row<r; row++) {

[code]....

I want the output to be like this:

1 2 3
2 4 6
3 6 9

If the user inputs 3 rows and 3 columns.

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