C++ :: Does Remove Not Work With File Directories?
Apr 12, 2014
I'm using the code found on the site here:
//* remove example: remove myfile.txt */
#include <stdio.h>
int main () {
if( remove( "myfile.txt" ) != 0 )
perror( "Error deleting file" );
[Code] ....
I replaced the myfile.txt with the directory of the file I want deleted.
"C:SOUNDSsavegame.dat"
It returns: Error deleting file. No such file or directory exists.
I've triple checked the directory. Its correct. I must be using this incorrectly. How?
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Mar 6, 2015
I'm stuck on unix system programming and am beginner about it. Assume that there is a directory which X. There are a file(text1.txt) and another directory which is Y in X. Last, there are two files(text2.noExtension) and text3.noExtension) and another directory which is Z in Y. My goal is that read files and enter directories until there is no directory. How to go on. Example:
Code:
#include <stdio.h>
#include <dirent.h>
int main (int c, char *v[]) {
struct dirent *pDirent;
DIR *pDir;
if (c < 2) {
printf ("Usage: testprog <dirname>");
return 1;
[Code]...
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Apr 3, 2014
I have a program where I want to export the .lib file in a "Lib" folder, and the .dll file in the "bin" folder. How can I choose where the lib file and .dll file go?
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Dec 11, 2012
I am creating small application using c#.net.I removed all image tag using regular expression no I want to remove all video file and flash file also in source code of webpage.
so far I have tried this ...
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
[Code] .....
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Mar 11, 2013
I have written this code to remove the comments from an input file and then put it into an output file. The program compiles and runs but it removes the whole line of code when it encounters a /* */ type comment. I believe the problem is in the while loop but I just don't know where.
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main(void) {
string infile, outfile;
ifstream source;
ofstream target;
[Code]...
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Jun 3, 2013
This is the first time I'm working with 2d arrays and I have to read the pixels in the input file, then store the pixel from the input image file into the array. And there is a maximum width and height of 500. If the file's too big, then I have to print an error message. Also, my array should only be filled up to the dimensions of the input image file.
I have the code for everything up to that point but I'm not too sure how to approach this. I've defined max_width and height at the top of my file as 500 and I'm thinking of putting this part of the program into a new helper function. But I'm not completely sure how to start, I do know that the array would look something like this though:
int array[max_height][max_width].
1) the syntax of printing the error message/storing the values and 2) the values for my pixels in the input file are all in a single column; each value after the ppm format header is on a new line.
what the input file looks like:
Code:
P3
493 401
255
71
0
0
76
4
5
87
11
NOTE: First three lines are the header information for the ppm format; the numbers that follow go like this: red, green, blue, red, green, blue, etc.
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Feb 20, 2015
I have tried with some logic for removing comma operator in test.ini file but its not working how to remove comma and get output. For example:
Input
inside test.ini file the name is in format,
ajs,18.0,15.0
expected output
ajs 18.0 15.0
but I am getting,
ats,18.0,25.0 2686760 4200912
Code:
#include <stdio.h>
#include <stdlib.h>
int main()
{
FILE *fp;
char strConfName[25] ;
float a,b;
[Code] .....
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May 24, 2014
I have a C++ program that performs calculations on numbers in a text file. However, suppose we have additional words in the text file such as "Title". In this instance, the program will not calculate the numbers in the file because of the text.
How do we remove text from a file using the C++ program? e.g. if I wanted to specify the program to remove any instances of the word "Title", how would I do it?
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Jul 5, 2013
I'd like to remove the character % from a text file using c++
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May 14, 2014
Ive been having a hard time creating bin file. Whenever I append data, the data wont show in browse function. And this program works good without the bin file code.
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
[Code]....
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Jun 3, 2014
I want to remove some character in my file. too i want to replace some char to another. I know the easiest way for this job is we write final text in file. i mean we first produce sightly text then write it in file . I don't want use of temporary string.
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Sep 30, 2014
So first, I'm sending files from a server to a client. Basically, the server says "Incoming file" and tells the client "The name of the file is: ". So taking the name, I need to create folders, if they don't exist, for the received file to be placed in (since std::ofstream doesn't allow creating directories).
My current code below is working. My trouble is listed below the code.
std::stringstream ss (name);
//name is the recv'd name
std::string token;
[Code].....
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Mar 12, 2015
I am working on a program where I am reading in a text file to be parsed to load data objects into their appropriate classes. I have a class to load in this file and to parse its contents. I am at the point where I would like to include the ability to have both C and C++ style comments in this text file. My current class has a constructor that takes in const std::string for its file name. Upon construction I have a while loop that calls a member function getNextLine() as long as this is true this loader class object then calls parseGui(). All of this works correctly so far. Within the function getNextLine() looks like this:
// ----------------------------------------------------------------------------
// getNextLine()
// Returns True If It Got A Line Of Text (Could Be Blank If It Is All Commented Out Or
// If It Truly Was A Blank Line). False Is Returned When There Is No More Data In The File
bool GuiLoader::getNextLine() {
if ( !_file.readLine( _strLine ) ) {
return false;
[Code] ....
As you can see this getNextLine() method reads in a single line of text and saves it into its member variable which is a std::string. It increments the line number, then a utility function trims out leading and ending white spaces. The next part is where this class calls a member function to remove comments. It is in here where I need to parse the string to look for comments either "//" C++ style line comments or "/* ... */" C style block comments that can span multiple lines. I have tried many different ways to go about doing this, and I am stuck on the C style comments. A note to consider is this: the way this code is designed is reading in a line of text from the file into a string variable and in doing so it is not logical for me to read in the complete file and do a pre-parse scan or analyzer.
This is what I have so far, however there are still cases that this code will fail on
// ----------------------------------------------------------------------------
// removeComments()
void GuiLoader::removeComments() {
const unsigned tokenLength = 1;
static std::string::size_type indexA;
static std::string::size_type indexB;
const std::string commentStartingToken( "/" );
const std::string blockCommentStartingQualifier( "*" );
[Code] .....
An example of where this code will fail is when it encounters a single '/' any where on a line of text as it goes into an infinite loop. I am not sure on how to go about skipping this lonely '/' and advanced the index to look for a possible next '/' that belongs to a '//' or a '/*'. I know that this is sort of trivial, but for some reason or another I am having writers block.
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Jan 23, 2013
I need to compute some values, place them in a structure containing two vector variables, and save them in a CSV file. Right now, I can't even generate a file. I wrote the structure definition and file writing code in a header file (after first borrowing it). I have a "button" that is supposed to trigger all of the activity. I'll attach the code below:
HEADER
________-----_______------
#ifndef EINSTEIN_H
#define EINSTEIN_H
#include <stdio.h>
struct SizeAll{
int year;
double R;
};
int write_to_file(int count, struct SizeAll *data, char const *fileName)
[code].....
My grasp of pointers and how and when to use them evaporated long ago.
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Oct 5, 2013
[URL] ....
I've been getting these errors on two computers through four different compilers. It seems the directories arnt set up. If that's the cause, I have no clue how to resolve that.
Its a very simple prog too; it just calculates a dist, using dist formula.
#include <cstdlib>
#include <iostream>
#include <math.h>
using namespace std;
void calcDistance (int x1, int y1, int x2, int y2);
[Code] ....
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Oct 23, 2013
I have these two files:
/project/protocol/guarddog/report.h
/project/protocol/sky/report.h
I have two report.h files located in two different directories. However the contents of them are different. How can I include the report.h file located in guarddog into the report.h file located in sky?
I assume just doing this would be ambiguous:
#include "report.h"
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Dec 28, 2014
Using CodeBlocks. I've added the path to the library files in 'search directories' in 'linker' tab.
E:DataCompLibrarySDL2-2.0.3libx86
I also added the include files location in 'search directories' and that works fine.
But still when I add 'SDL2.lib' in linker settings and try to compile I get: cannot find -lSDL2.lib
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Nov 19, 2012
For each project in a VS solution it's possible to stipulate per-project folders that get searched in addition to the folders that you've set globally for Visual Studio.
Which folders take priority? Do the project's folders get searched first? Or do the global folder get searched first? Or is it possible to select one set as having priority over the other?
(this is VS 2005 BTW)
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Jun 4, 2012
I am currently working on a program that will take an image and compare it with all other images in the current directory and sub-directories. I decided to use Qt for this as Qt has a QImage class with an overloaded == operator. This seems to work well if there are duplicates of the same size.
However, my goal is to not only find duplicate images of the same size, but the same image which may be a different size. To do this, I shrink the larger image to the size of the smaller image using the QImage scaled function.
The concern I have with this is that the scaling isn't done the same way the smaller image may have been scaled. I tested this by shrinking a copy of a picture in Paint, that image does not get deleted. I believe that == is looking for an identical image, so when I do the shrinking (via that scaled function), even if it is of the same picture I shrunk in Paint, the two methods of shrinking are not identical, and so the images appear different.
Any better method I can try? Something that can allow for slight deviations, such as an image being 99% "the same" as another. (I admit here that I will need to define some metric for what "the same" means.) In this case, the method assumes they are "identical" and gets rid of one of them.
The main way I can think of doing this is to go through each image, one pixel at a time. If the two pixels from the different images at the same index are the same, then I can increment a same pixel counter. If this number is 99% (or some other threshold) of the total pixel count, I can make the assumption the images are the same.
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Jul 21, 2013
The code below is suppose to create directories and upload files, but it is not working. What can I do to make the code work?
Code:
void CRECURSIONDlg::Recursion(CString sPath) {
hInternet = InternetOpen(TEXT("BEAR FTP"),
INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0);
// Make sure there are no errors
hIConnect = InternetConnect(hInternet,"192.168.1.4", 211,
"******", "*****", INTERNET_SERVICE_FTP, INTERNET_FLAG_PASSIVE, 0);
[Code] ....
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Apr 28, 2014
So I have a small program which is supposed to write and read multiple objects from a file, but for some reason it doesn't write the information when I use "fstream" to create the object from the fstream class, but it does when I use "ofstream". Also, it doesn't read the information from the file no matter if I use "fstream" or "ifstream". I watched a video where this exact code worked just fine, but it just won't work when I run it. I'm using Dev C++ 4.9.9.2, I don't know if that has anything to do with it, I also tried it with Code::Blocks, didn't work either.
Here's the code.
#include <iostream>
#include <fstream>
using namespace std;
class Person
[Code].....
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Jul 25, 2013
I need a code in c++ . It should count the Files and Directories in root folder with every folder information i need the below information
1) no of files and folder
2) how many files are there in each folder
3) with size of every folder and files it contains
I am new in c++ ....
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Nov 14, 2013
I've just started learning from "Jumping into C++". Great book. Unfortunately, I've also encountered my first snag. Practice problem number 3 from chapter 4 tells me to make a small calculator that takes one of the four arithmetic operations and its two arguments as input and give the result as output. Here's what my newbie mind came up with:
Code:
#include <iostream>
#include <string>
using namespace std;
int main()
[Code] .....
The thing that I don't get is why doesn't the function "getline" work. It's worked in previous programs. The program seems to work if I simply replace getline with a simple "cin". I could easily use that as a cheap fix but I am interested in knowing why "getline" refuses to work anymore....
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Feb 7, 2014
what I do I cannot get a division to work:
Code:
//END RANGE INPUT
long double End;
printf("
Please enter the start of the range (Lower Bound):
");
[Code]...
No matter what I input for the values of 'Start', 'End' and 'Interval', the value of 'SizeL' always seems to be -2.
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Apr 9, 2014
I am writing a simple console-based tic-tac-toe game. I am trying to write a function to check whether someone has won the game.
The board data is saved in an array called board: Code: int board[3][3] with each element corresponding either to an empty spot, an X, or an O, using the numbers 0, 1, and 2, respectively. For clarity:
Code:
#define EMPTY 0
#define X 1
#define O 2 Here is my function: Code: int check_state(int board[3][3]) {
int winner = 0;
[Code].....
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Aug 4, 2014
I have a C-based string. trying to remove some sub-string, I got at:
char str[]="alireza tavakkoli";
char* pos = strstr( str, "reza");
for(int j=pos-&str[0];j<pos-&str[0]+strlen("reza");++j)
str[j] = 7;
But I don't like the last line.isn't there a better solution?
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