C++ :: Printf Is A Part Of Code Segment But Found In Data Segment?
Sep 28, 2013printf is a part of code segment but found in data segment.....why is it so ?
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C :: Ciphering Data Segment Of Program
May 31, 2013I would like to cipher data segmet of my executable say with a simple Caesar Cipher algorithm, i.e. any text should not be readable when executable opened with a hex editor.
It should be something that converts my plain text into a ciphered form at compile time(CPP?), and when executable is being run, should be able to convert ciphered data into human readable text.
I thought meta-programming could be the approach for this. Also, implementing complex algorithms with C pre-processor (CPP) sounds vulnerable (well, depends on one's coding skills let me say)
C/C++ :: Know That Data Written To Shared Memory Segment In Unix Is Stored Properly
Mar 8, 2012I am trying to write a client/server application that takes input to an array of structures from the user,stores the data in a shared memory segment and then writes the same to a file when I close the application. How do I get started? And how do I ensure that the server stores the data correctly? Also, the server needs to be a concurrent server that accepts connections from multiple clients.
View 1 Replies View RelatedC++ :: Deleting Vector With Char - Segment Fault
Apr 19, 2012The below code is giving me segment fault during delete [] (*iter) sometimes. Is it not the proper way to delete the vector with char *
Code:
#include <iostream>
#include <vector>
using namespace std;
int main() {
vector<char*> nameList;
for (int i=0;i<1000;++i)
[Code] ....
C++ :: Sweep Line Algorithm Applied To Segment Intersection?
Apr 26, 2013I need updating binary search three. I am working on implementation of Bentley-Ottoman algorithm for finding intersections of line segments in the plane. Code I designed works properly for all, but certain types of triangles. What is happening is that one intersection inside the triangle is never detected due to a fact that segments which intersect in that point never become neighbors in binary search tree.
class segment{
double x1,y1,x2,y2;
int name;
[Code]....
C++ :: How To Delay Part Of Code
Jul 1, 2014for example i have
int count = t1;
while(count>counter){
Sleep(delay);
Int32::TryParse(textBox2->Text,add);
result = result + add;
counter = counter + 1;
Problem is that sleep stops all program for specified time, Is there an alternative to sleep that would only stop part of code or can i use sleep different way to specify what it pauses?
C++ :: Why Decrement Part Of The Code Not Working
May 17, 2012Code:
#include <cstdlib>
#include <iostream>
#include <string>
#include <stdio.h>
#include <windows.h>
#include <conio.h>
#include <exception>
#include <process.h>
using namespace std;
int main(int argc, char *argv[])
[code]....
C :: Code Won't Execute Last Call Of Printf
Nov 10, 2014I'm trying to create a program that will show what the 12th digit of a UPC code would be. However, once the user enters the first 11 digits the program doesn't execute the last call of printf. The program compiles with no issues.
Code:
#include<stdio.h>
int main() {
int o1, e2, o3, e4, o5, e6, o7, e8, o9, e10, o11, oddsum, evensum, twelve;
printf
[Code] .....
C/C++ :: Printf Floating Point Code Gives Runtime Error
Mar 24, 2013main()
{
printf("%lf",5/2);
}
this code is giving runtime error ....why ?
C :: Printf And Scanf - Output String Data At The End Of The Line
Dec 2, 2013I'm trying to get this programme to work but I can't get it to output the string data at the end of the line.I have copied and pasted the line in question below but it may be a prob with the prog further down.
It reads character input ok but doesn't put one string into another or recognize when a string is quoted in a printf.
Code:
printf("%s what is your second name?
", surname, name2, name);
#include <stdio.h>
int main ()
{
char name[20];
[Code] ....
C/C++ :: How To Reuse Existing Code To Read Data File In Qt
Aug 13, 2014I've got some code in C++ that does some basic analysis on price data and I run it from the cmd prompt. One of the functions I had built to read in the data is as follows:
void ReadPricesFromFile(constchar*filename,std::vector<PriceInfo>&prices)
{std::ifstreaminput(filename);
input>>prices;}
How would one merge this type of code into a Qt GUI? Ideally, I'd like to use something like QFileDialog to open up a folder with my data files, select a file, and then read the file that the user selects. Would the main.cpp look something like this?
int main (int argc, char *argv []) {
QApplication prog (argc, argv);
QPushButton *load_button = new QPushbutton ("Load File");
QObject:: connect (load_button, SIGNAL (clicked()), &prog, SLOT ( (ReadPricesfromFile function?);
load_button-> show ();
return prog.exec ();}
C# :: Read Data From More Than One File At Once - Not All Code Paths Return A Value
Apr 11, 2015I am trying to read data from more than one file at once. The files are different types e.g. one is a text file one is an xml file like so, StudentInformation.txt, CollegeInformation.xml. The files are all stored in one place, in this case on the D drive of a local computer. I am trying to locate any files in the D drive with a file extension of .txt or of .xml (there may be more than two of these files in the future, so I'm trying to allow for that). Then I want to open all of these files, extract the information and output all the information in one display window. I want all the information from these two or more files to be displayed together in the display window.
Here is the code so far. It is throwing up errors.
//Load from txt files
private void btnLoad_Click(object sender, RoutedEventArgs e)
{
IEnumerable<string> fileContents = Directory.EnumerateFiles("D:\", "*.*", SearchOption.TopDirectoryOnly)
.Select(x => new FileInfo(x))
.Where(x => x.Extension == ".xml" || x.Extension == ".txt")
.Select(file => ParseFile(file));}
[Code] ....
The error it throws up is:
Error 1 'BookList.Mainwindow.ParseFile(System.IO.FileInfo)': not all code paths return a value
C :: Header Files Not Found On Mac
Nov 2, 2013I have a piece of code in C with header files included. I run it on Mac OS X Maverick with XCode 4.6.2 installed. GCC is also installed. Note that Command Line Tools in XCode are already installed.
When I compile it, the error I receive says something like this:
add.c:1:19: error: stdio.h: No such file or directory add.c:2:20: error: stdlib.h: No such file or directory add.c:3:20: error: unistd.h: No such file or directory
However when I run it on Ubuntu, it compiles without a problem.What to do?
C++ :: How To Tell Function Which Part Of Struct To Use
Jul 4, 2013Say I have a structure defined as such:
struct data{
char c;
int x;
};
And I want to create a function to print either c or x. However, I don't want to just use a switch or something to figure this out, I want to reference which part I'm outputting.
Now here's the twist
vector<data> dataList;
I need to access element x or c in the vector, but all I pass is the vector and which element, so that I might have something like:
void (vector<data> x, DataType i){
cout << x[0].i;
}
So now, if I pass either x or c (someway), I can output one of them.
C++ :: Identifier Not Found For Maximum Value
Sep 10, 2013I am working on a couple C++ projectsfor my class. On one of my projects I get this error "identifier not found" for maximumValue. here is the code that I have done. I have got almost all the code from my text book..
// Three numbers.cpp : Defines the entry point for the console application.//
#include "stdafx.h"
#include <iostream>
using namespace std;
int main() {
// demonstrate maximum int value
int int1, int2, int3;
[Code] .....
C++ :: End Of File Found Before Braces
Dec 7, 2014I have counted my braces and it look to be correct but I am seeing double.. I am getting the "end of file found before the left brace.. do I have one in an incorrect place?
#include <iostream>
#include <string>
#include <fstream>
#include<cmath>
using namespace std;
int totalCaloriesBurned (double);
[Code] .....
C++ :: Clear Part Of The Screen?
Nov 3, 2014Is there any way I can clear only a selected part of the screen? (I'm aware of system("cls"))
For example, when you enter a date, and is wrong, could it just errase that input and only say "Wrong try again" without errasing everything else you where doing?
In this case, a function that only errases what is in the while
while(not wrong)
{
cout<<"DIA: ";
cin>>obj.dia;
cout<<"MES: ";
cin>>obj.mes;
cout<<"ANIO: ";
cin>>obj.anio;
}
PS: Also, is there any whay in which you can ask the user to enter the date DD/MM/YYY?
C++ :: Library Not Found In QT Creator
Jan 23, 2015I am trying to link OpenCV to my qt project, but for some reason it doesn't seem to able to find my files. my .pro file looks like this
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = opens
TEMPLATE = app
INCLUDEPATH += /usr/local/include
HEADERS += mainwindow.h
LIBS += -lm -lopencv_core -lopencv_highgui -lopencv_video -lopencv_imgproc
SOURCES += main.cpp
mainwindow.cpp
FORMS += mainwindow.ui
I get the error message saying library not found for -lopencv_core and it is the same for the other ones.
I've been following this guide : [URL]
What is going on?
C++ :: Object To Return Part Of Itself
Dec 7, 2013Is it valid for an object to return an object of they same type? GetBlock method
class memBlock {
private:
char *mem;
unsigned long length;
public:
memBlock(char *data,unsigned long startPoint, unsigned long endPoint) {
[Code] .....
C/C++ :: Cannot Find Out Why A Certain Part Is Looping
Jan 20, 2015I am having a little bit of trouble with what should be a simple part in my code. For some reason it keeps looping the name part of the program and I seem to be passing over the problem in the code.
Here is the code:
#include <iostream>
#include <string>
using namespace std;
[Code]....
C/C++ :: How To Delete Part Of The String
Nov 26, 2012I have the following string: "type computer {dell}"
And I want to remove the {dell}
So that the output on the screen type computer
Or delete any clause between the two brackets {}
How do i do that ?
C++ :: Error 127 - Process Not Found
Feb 21, 2015tell me which .dll or library I'm supposed to use to link this program:
#include <iostream>
using namespace std;
void antpost (int num, int& anterior, int& posterior) {
anterior = num-1;
posterior = num+1;
[Code] ....
I think my linker needs an additional #include to be able to deal with int& anterior and int& posterior. I'm not sure as I'm new to C++. My version of Dev-C++ is Orwell V5.8.3.
C++ :: Erase Part Of The String?
Sep 29, 2014Code:
// string::erase
#include <iostream>
#include <string>
int main () {
std::string str ("This is an example sentence.");
std::cout << str << '
';
str.erase (10,8);
std::cout << str << '
';
Code:
Output:
I don't understand this program. What do these 2 numbers represent? The index of an element in a character array? The 10th character of the array is 'n' and 8th is a "space".
C :: How To Convert Part Of String And Integer
Jan 2, 2014I'm having a problem converting part of a string to an integer.I used strtok to seperate my string and I have also a function for atoi but how to apply it to my strtok function.What i need is to change the char *years to an int.Have a look of what I got:
Code:
int main() {
char sentence[]="trade_#_2009_#_invest_#_DEALING";
char *word=strtok(sentence, "_#_");
char *year=strtok(NULL, "_#_");; // assigning NULL for previousely where it left off
char *definition=strtok(NULL,"_#_");
char *synonyms=strtok(NULL,"_#_");
[code]...
C :: Strcat With Nulls As Part Of Array
Mar 30, 2014I have a character array that includes configuration bits that are 0x00, thus when I try and do a strcat it adds the appended string into one of those spots instead of the end of the array.
View 2 Replies View RelatedC :: Printing Duplicates Found In Array?
May 8, 2013I'm having some trouble printing the duplicates found in an array. Specifically, when the value is at more than 2 positions. So if the value 3 is at position 1, 10, and 11 it'll print three messages instead of two:
value 3 at position 1 is also at position 10
value 3 at position 1 is also at position 11
value 3 at position 10 is also at position 11
instead of
value 3 at position 1 is also at position 10
value 3 at position 1 is also at position 11
This is real simple problem, but I can't seem to figure it out. I've been trying to implement another array to 'remember' the encountered position, but I haven't had any luck.
Code:
for(i = 0; i < num_count; i++){for (j = i + 1; j < num_count; j++) {if (num[i] == num[j]){printf("
value %d at position %d is also at position %d", num[i], i, j);}}}