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]....
I've implemented it a bit differently: I create 2 temporary arrays, one for the numbers lower from the pivot , an done for numbers greater then the pivot. in the end of each iteration the 2 arrays are copied to the original array:
Code: #include <iostream>
void QuickSort (int* A , int start, int end){
if (end-start<3){
return;
}
int mid=(start+end)/2;
int pivot=A[mid];
int lA[end-start] , rA[end-start], rCounter=0,lCounter=0;
int curr=0,i=start;
[code]....
Code:
#include <iostream>
using namespace std;
int main () {
char character = 'a';
[Code] .....
the point of this code is to increase character by 1 (so from a to b in this case).
The line highligted in red is the line that the system is rejecting at the moment (but there may be other issues). why it is invalid?
I just dont see what the issue is here. I have stared at this thing forever. Im trying to make a calendar from scratch so I can be prepared for my second test on Friday.
Code:
#include<stdio.h>
#include<stdlib.h>
int main(void)
{
int i, n, s;
[Code]....
#include <iostream>
#include <string>
using namespace std ;
int main() {
string bored ;
do {
cout << " program" <<endl ;
[Code] .....
I made this as a simple do/while program, and if i run it, the second do/while statement will keep on going forever, without the [cin >> bored;] line working?
I am trying to release my C++ app to run on desktops that dont have VS installed and have created an install shield app to install on the desired computer. my issue is even after packaging it, it still requires certain DLL's...I read online that I had to copy 'msvcr120.dll' and a few others to syswow64 and sys32 folders but now when I try run my app it just crashes before starting.
I think it sucks that Microsoft no longer packages required DLL's like it used to in 2010.
my text for the score and difficulty doesn't seem to work. They are both appearing twice and not updating. The score text worked fine until I inserted the difficulty text and I can't seem to find the problem. URL.....
#include "stdafx.h"
#include <iostream>
#include <sstream>
#include <SFML/Graphics.hpp>
int main()
{
sf::ContextSettings settings;
//settings.antialiasingLevel = 8;
[code]....
i'm right now using C, IO is done via ncurses, but that won't affect the following problem, i think. The relevant code is:
#define SIDEBARWIDTH 27
//...
typedef struct {
[Code]...
surprisingly this works, now the new 3rd outputline is correct again. So it seems that the printcommand has some troubles with accessing the struct here. Not sure if that might be ncurses fault. Still feels odd.
I should reduce the number of bitmaps I used in my code. I translated my particle engine into code that could be compiled as plain standard C
Currently, the code has a segmentation fault somewhere that I can't figure out. How it should function is that it takes orders from a queue for new lasers to store the instances in a linked list. It then takes that data and updates its coordinates, one node at a time. The first node should also be the first node to complete its life, so it gets removed, and the list is set to the next node in memory. If there are no more nodes left, a if-statement should catch it and either break the current loop, or wait for more items to be requested. If there are nodes left, the process will continue to remove the first node in the list until there are none left. Obviously this is not quite how it works. When I tested in once in SDL, the laser would update every 5 frames, but wasn't shown constantly, and would crash after the node was to be disposed of. When I initialize with the SDL parachute, it would exit before I event saw the screen. Also, the code I translated to standard C will display that the laser has been updated to the screen, but it never says that it has moved up. It crashes after about 4 printf() statments execute. My debugger has been giving me mixed SIGTRAPS, and "nothing is wrong" output. Here is the code in standard C:
Code:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define MAX_LASER_QUEUE 10
}
[code]....
Im about to program a RPG and, of course, the player has got an inventory. The items in this inventory are stored in a linked list and have IDs in form of strings.
player.cpp: (just the most relevant)
#include <list>
#include <string>
using namespace std;
[Code] ....
Of course, when the player saves the game, the inventory has to be saved too.
game.cpp(just the m. R.)
#include <fstream>
using namespace std;
class CGame{
[Code] .....
Now, in my code I write the linked list into the file savegames.sav
void CGame::save(CPlayer* player){
m_out.open("savegames.sav", ios::out);
m_out.write((char* ) &player->m_inventory, sizeof(player->m_inventory));
m_out.close();
}
In another function i load the list:
void CGame::load(CPlayer* player){
m_in.open("savegames.sav", ios::in);
m_in.read((char* ) player->m_inventory, sizeof(player->m_inventory));
m_in.read();
}
And when i access the loaded linked list with the .empty() function or so, Windows says the following:
<Mygame.exe> funktioniert nicht mehr (in English: doesnt run anymore).
I tried so much to fix that but i dint reach my aim.
I realized a Matrix class to practice and I have a problem I can not solve! Here my problematic code:
Mtrx.h:
Code:
template <class T>
Mtrx::Mtrx(dim m, dim n, const bool random_constructed = false, const T min = static_cast<T>(0), const T max = static_cast<T> (10))
Mtrx.C
[Code] ...
And here the relative main section:
Code:
Mtrx rand1 ( 5, 5, bool);// ok
cout<<rand1<<endl;
Mtrx rand2 ( 7, 3, bool, -5, 20);// ok
cout<<rand2<<endl;
Mtrx rand3 ( 7, 7, bool, 0., 15.);// compilation error: undefined reference to
// "Mtrx::Mtrx<double>(unsigned long, unsigned, bool, double, double)"
// collect2: error: ld returned 1 exit status
I compiled in a Linux OS with g++ -std=c++11
I wrote a program with function my own function which count the digits of entered number. The problem is whatever i type it shows 0 digits.Why is that?
Code:
#include <iostream>
using namespace std;
int cikCipari (int skaitlis, int cipars);
int main()
[Code] .....
Title is self-explanatory.
Code:
#include <iostream>
using namespace std;
int main ( ) {
float number;
float sum;
float divi;
while(number != -1) {
[Code] .....
I installed FLTK 1.3.X from [URL] on my visual studio 2012 compiler and use PPP book for C++ programming [URL]. My problem is about filling a Shape in.
Code:
#include <Simple_window.h>
using namespace Graph_lib;
int main() {
Simple_window win(Point(100,100), 1000, 600, "Binary_tree");
Graph_lib::Circle c(Point(200,200),50);
c.set_color(Color::red);
[code]....
When I run the program, All three Shapes are drawn on window but only the Rectangle is filled in! Why? set_color works for the three and apparently the set_fill_color is defined for all Shapes and it too should work but why it doesn't for Circle and Ellipse?
This [URL] is the .CPP and .h files ( )
Overview: I'm creating a code to simulate quantum tunneling current.
I'm getting the code to output data on a spreadsheet file, and it all works except the following part, which are just giving values of 0 all the way down for the entire column.
j_tl=((eV*hbar*k)/(m/c*c))*(1 - R_lr - T_rl);
When I remove the ((eV*hbar*k)/(m/c*c)) part of it, it gives out values for the (1 - R_lr - T_rl) so I presume the problem is in the former. But I'm struggling to think what it could be. The same is happening for j_tr.
Full code here
#include <iostream>
#include <math.h>
#include <fstream>
#include <stdio.h>
using namespace std;
int main() {
double k,q,p,y;
double E; //Electron energy (V)
[code]....
My coin/money change code works when there can be an exact change each time, i.e. when the 1 cent option is available. However, when the change options are only $10, $5, $1, 25 cents and 10 cents, it does not give me what I want for instance, I wanted to get change for $237.80, I was expecting to get:
23 10's, one 5, two 1's and 8 dimes. However, the code below is giving me 23 10's, one 5, two 1's and 3 quarters (there is no option left for the 5 remaining cents).how to fix it?
Code:
#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
void change(double cents, int a[]);
int main() {
double Dollars;
double cents;
[code]...
I wrote a program which was supposed to decrypt a file encrypted with the XECryption algorithm. Now, I know the decryption algorithm, but I have a problem with my ifstream object. It doesn't read anything at all, and the ofstream object just outputs a single random byte in a never ending loop. I've tried using cin, which works correctly, but it's not what I want.
Here's the code:
#include <fstream>
#include <iostream>
using namespace std;
int main() {
ifstream in("file.in", ios::in);
if (!in.is_open())
[Code]....
I'm doing this on a Windows 8(.1) pc with Code::Blocks 13.12. In the file (file.in) I have replaced the points with spaces. What is wrong with the code?
i have a question, i'm studyng the string library type and i have to write this program :
Code:
std::string word;
while (std::cin >> word) {
std::cout << word << std::endl;
}
why if my input is :
hi my name is ^Z
the output is :
hi
my
name
is
why the program doesn't fall out from the while loop ?
why my program does not recognize my sequence of end of file ?
I'm reading a binary file and I want to read all of the letters, but I have noticed that it doesn't read all of the letters and I think it is because of appears as data.
View 11 Replies View RelatedThis 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.
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?
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.
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].....
I have a function in one src file called from code in a different src file.
In ig_cfunc.cpp
Code:
#include "ig_tools.h"
int x2_count = 0.0;
float rel_branch_degree_tmp = 0.0;
string type;
vector<int> is_disp_type;
[Code] ....
I am getting a linker error,
Code:
ig_cfunc.cpp:1609: error: `calc_rel_branch_degree' undeclared (first use this function)
I have deleted all of the objects and recompiled to make sure that everything is in sync. I can't see what the issue is here and I'm not sure what to do next. This code actually worked until I changed the name of the function, so the types are all correct and such. This is the format I use for all external functions ....
i have been making code of a chessgame and now sddenly computer freezed and now there's not code in .cpp file! Although my .cpp file shows size of 16kb but when i open it . there's nothing except bank file
View 1 Replies View RelatedHere is program I have written which reads the destination, then finds it from a separate file, and reserves the information on a different file. But the reserved file has hex code information, how can I output my result to the file in normal alphabet/number/symbol characters? I've tried fputs,fprintf, and fwrite , and all give me the same result. The array c, is the one to be written to file.
void main {
FILE *afile = fopen("flightrecord.txt","r");
int i=0,j=0,k=0,z=0,y=0,sum=0,seat=0,g=0;
char destination[10],a[1000],c[1000],b[1000],name[100],last_name[100],c_number[15],plane[]={'P','6','2'};
printf("What is your destination?");
scanf("%s",&destination);
[Code] ....