C++ :: Cannot Write As Binary Using Dat Format In Ubuntu
Nov 29, 2014I cannot write as binary using .dat format in ubuntu, why?
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C/C++ :: Custom Binary File Format
Jul 9, 2014Development of a custom binary file type? So far all I know is the just the basic structures of the binary file type, I know that structures are involved but the implementation part I have run into walls.
View 1 Replies View RelatedC/C++ :: Converting BMP To Strings Of 0 And 1 (Binary Format)
Mar 14, 2014I want to read a Bitmap file in C language and produce the binary equivalent of it in the form of 0's and 1's.
View 1 Replies View RelatedC++ :: Writing In Binary Format Array Of Unsigned Int Values
Aug 5, 2013I am trying to write down in binary format an array of unsigned int values but i get the following compilation error :
: In function ‘int CIndex(std::fstream&, std::fstream&, std::fstream&, std::fstream&)’:
./src/IndexBuilder/index.cpp:23:26: error: no matching function for call to ‘std::basic_fstream<char>::write(int*, long unsigned int)’
./src/IndexBuilder/index.cpp:23:26: note: candidate is:
/usr/include/c++/4.6/bits/ostream.tcc:184:5: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::write(const _CharT*, std::streamsize) [with _CharT = char, _Traits = std::char_traits<char>, std::streamsize = long int]
This is the part the is not working:
Code:
// uia is : unsigned int * uia;
// then I have allocated the space for it
// load it with unsigned int's
// k is the number of variables in my array
o.write(uia,sizeof(unsigned int)*k); But thsi should be so simple and strait forward.... in c i do it as :
Code:
fwrite(uia, sizeof(unsigned int), k , fp); but since i would need to convert fstream to FILE* i decided to do it c++ way.
and this is how i opened the file :
Code:
o.open (fileName.c_str(),std::ios::out|std::ios::binary);
C/C++ :: Error / The Specified File Is Unrecognized Or Unsupported Binary Format
Mar 17, 2014I am getting a weird error "The specified file is an unrecognized or unsupported binary format"
I have this >
#include <iostream>
#include "calculator.h"
using namespace std;
int calculator::getDisplay() {
return display;
} void calculator::enter(int nu
[code]......
C/C++ :: Display Contents Of Binary Tree In Per-level Format - Undefined Reference
Oct 5, 2014I am coding in C++ an implementation of BTree Insertion. I want to display the contents of the Tree in a per-level format. After writing functions and trying to run. I get the error Undefined reference.
// C++ program for B-Tree insertion
#include<iostream>
using namespace std;
// A BTree node
class BTreeNode{
int *keys; // An array of keys
int order; // Minimum degree (defines the range for number of keys)
BTreeNode **child; // An array of child pointers
int size; // Current number of keys
[Code] .....
C :: Binary File Write By User Input Then Printing Binary File Data Out
Dec 6, 2013Following is the program I wrote it basically takes 9 inputs and then save them into binary file. then print out the data stored in binary data and find inverse of it then print the inverse out. but its stuck in a loop somewhere.
Code:
#include <stdio.h>
int main() {
int a[3][3],i,j;
float determinant=0;
int x;
FILE *fp = fopen ("file.bin", "wb");
[Code] .....
C++ :: Using Binary Write To Save A Struct
Aug 13, 2013I'm still reading Prata's book and there is a section where they explain how to write files using the binary mode.
They define a struct
Code: const int LIM = 20;
struct planet
{
char name[LIM];
double population;
double g;
};
planet pl;
And they say you can use the binary mode to write the whole struct at once (in text mode you need to specify every member).
Code: ofstream fout("planets.dat",
ios_base:: out | ios_base::app | ios_base::binary);
fout.write( (char *) &pl, sizeof pl); I don't understand why they use Code: fout.write( (char *) &pl, sizeof pl) instead of just Code: fout.write( pl, sizeof pl)
C++ :: Read Text Write Binary
Feb 4, 2013I am planning to use this mostly to copy binary files, but why won't this work with text???
input.txt
int main(int argc, char* argv[]) {
// open file
std::ifstream ifs;
ifs.open("./input.txt", std::ios::binary);
[Code] ....
output.txt
310^?z^@^@^@^@^@300367346^A^@
Will this method always work to copy a file?
C++ :: How To Open Binary For Read And Write
Feb 19, 2014#include <stdio.h>
#include <stdlib.h>
int main () {
FILE * pFile;
long lSize;
char * buffer;
size_t result;
pFile = fopen ( "myfile.bin" , "rb" );
[Code] .....
How to open binary for read and write? Why the buffer is char * buffer? i mean in binary u cant read chars . How can it be? how the data is represented? just like txt file? What the buffer will contain how to print this buffer???
C++ :: Write A Location In A Binary File
Jan 3, 2013I have a std::vector of short ints that I need to write to a specific location in a binary file (without using .NET code). To that end, I wrote up this code:
Code:
ofstream fileStream (filePathString, ios::out | ios::binary);
int curPos = 2821;
fileStream.seekp(curPos);
int iter = 0;
while (iter < 1024*1024){
char bytesToWrite[2];
//Low byte
bytesToWrite[0] = LOBYTE(dataVector[iter]);
[Code]...
The code runs without crashing, but when I look at the file afterwards in a hex editor, every byte (even those outside the range I thought I was writing to) are replaced with 00. I suspect I'm missing something in my understanding of file streams. Did I write that code correctly? Seekp does move the pointer over the next byte to be overwritten, yes? Am I getting a memory leak somewhere?
C :: Write Array Of Struct To A Binary File
Mar 6, 2015im trying to write an array of struct to a binary the array of struct is filled with data from a text file .
the program gives no errors or warnings but does not write anything at all to the binary file here is the main
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct matches
{
char teamA[20] ;
char teamB[20];
int scoreA ;
int scoreB;
[Code]....
C++ :: Read In Binary Files Then Write To Another File
Oct 11, 2014I would like to read in binary files, then write them to another file.
I write a code, what works perfectly, if I would like to just copy the file to another. But I want to make it a little other.
If I open a file in hex-editor I also can see the ASCII values. But I would like get the ONLY the hex values to the other file.
For example:
d5 57 4f ad 30 33 0b 4e 49 a7 05 18 c4 90 66 d8 45 ac 39 3e 7d f1 a8 02 80
14 20 90 6e 20 12 38 0c 65 4a 28 d2 80 72 04 20 a9 4a 82 84 60 6a 0b 25
59 4c 30 c8 69 c0 ec fa 36 ed 3a da b1 9a 82 02 e0 bb 7e 41 87 02 f6 10 34
eb 95 93 63 01 6b 8d e1 d7 43 c3 df 92 5d 8a ed 57 61 4e 36 07 2a d7 56 2b
b5 0e 55 83 b4 76 8c b7 61 77 0e c9 76 0c 81 1b 01 63 0c 8b 73 57 d5 6d 4c
0c c2 0d 52 45 18
How could I make it?
C++ :: Write Struct With String In Binary File
Jan 11, 2015I have a structure :
struct Entrainement{
string muscleCible, nom, unitesObjectif;
double objectifActuel, dernierObjectif, objectifInitial, capaciteInitiale, progression[10];
};
and I want to write in a binary file the structure. The following works perfectly....
(*pointeurFichierEntrainementBin).write((char*)&exercice, sizeof(Entrainement));
except when the string exceed 11 characters. I guess it's because it has to pick a fixed sized for the string? but what if I want to always be able to have string up to 200 character? because now I can't exceed 11..I know writing a string with c_str() works, but I would like to write/read the structure in one shot.
C++ :: Write Destructor For Binary Search Tree?
May 12, 2013I am trying to write the destructor for my binary search tree. But how to write this.
I have tried
delete root; and delete [] root;
but it doesn't work.
So, here is my code.
#ifndef TREE_H
#define TREE_H
struct PersonRec {
[Code]......
C/C++ :: How To Write 0 Or 1 To Binary File In Bits Not In Bytes
Aug 20, 2014How I write a 0s or 1s to binary file in bits not in bytes how can i do that ???
View 2 Replies View RelatedC++ :: Write To A Binary File - Int Array Is Not Initialized
Oct 30, 2013This is what I have so far
My function does not work and my compiler says my int array is not initialized
#include <iostream>
#include <cctype>
#include <string>
#include <fstream>
#include <stdio.h>
using namespace std;
void arrayToFile(ofstream tak, int *arr[], int size )
[Code] ...
C :: Write / Read Tree Nodes Into A Binary File
Oct 20, 2013I have a binary tree, and I want to store all information its leaves stores into a binary file and then read it.
What I tried:
A function that reads the tree, and whenever it finds a leaf, it writes in the binary file:
Code:
[...]
if(tree->right == NULL && tree->left == NULL){
fwrite(tree, sizeof(tree), 1, output);
}
[...] a
And in the main function:
Code:
[...]
for(i=0;i<5;i++){
fread(tree, sizeof(tree), 1, output);
printf("This is the leaf number %d", tree->num);
}
[...]
I'm trying to read 5 nodes just to see if its working but it isn't. The output shows the first node of the tree everytime.
C :: How To Write One Binary Tree Function To Sort The Data
Dec 2, 2014The Problem You are part of a company writing a spreadsheet program. As you know, spreadsheets can be sorted on any column. You're part of the project is to write one binary tree function to sort the data [Hint: use different fields when inserting nodes in the tree.] and a second function to list it in either an ascending or descending sequence. [Note: Each of these functions may actually need to be a set of related functions.]
For sample data you will have a disk file containing information about Shakespeare's plays. Your first function should create a tree based on the sort selected by the user and the second function to display the data in the sequence selected by the user. Regardless of the column being sorted, data in individual records always be displayed in the same line of the output.
Input : Each record will contain the following information: First Performed 9 characters Printed 5 characters Title 26 characters Type 7 characters
Output : Tabular output should be aligned in columns with two spaces between each. All columns should have headings. It should be sorted on the column specified by the user.
Example (This sample data provided so you can test your program.) If the data is:
1595-96 1600 A Midsummer Night's Dream Comedy
1594-95 1623 Two Gentlemen of Verona Comedy
1596-97 1623 King John History
1597-98 1598 Henry IV, Part 1 History
1611-12 1623 The Tempest Comedy
1602-03 1623 All's Well That Ends Well Comedy
[Code]...
Source: [URL]...
Possible outputs are
1 - for a sort by title: First
Performed Printed Title Type
--------- ------- -------------------------- -------
1595-96 1600 A Midsummer Night's Dream Comedy
1602-03 1623 All's Well That Ends Well Comedy
1606-07 1623 Antony and Cleopatra Tragedy
1599-1600 1623 As You Like It Comedy
[Code]....
2 - for a sort by first performed: First
Performed Printed Title Type
--------- ------- -------------------------- -------
1590-91 1594? Henry VI, Part 2 History
1590-91 1594? Henry VI, Part 3 History
1591-92 1623 Henry VI, Part 1 History
1592-93 1623 Comedy of Errors Comedy
1592-93 1597 Richard III History
[Code]....
C++ :: Read And Write Binary Tree To File - Deserialization
Jun 24, 2013So as a learning exercise, I am trying to read and write a binary tree to a file. After googling around, I decided to use a preorder traversal (including null nodes) to write the binary tree to the file. I got stuck trying to read a tree from a file. I can't figure out how to create an unknown number of nodes when they are needed. I could use an array, but that just seems bulky - plus it could run out of space. Is that what I have to do? I've heard of vectors before, but not very much.
View 5 Replies View RelatedC++ :: Write And Read Class Objects In Binary File?
Jan 11, 2013if i have 2 variables for which values are given by the user,then,does the information get stored into the file in the name of the variable,or just like packs of information.....if the former is true,how to extract the information of a particular variable alone from the whole file?
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Sep 27, 2014what can i do to fix ? why do i get the error ?
View 2 Replies View RelatedC++ :: Compile OpenGL Program In Ubuntu
Aug 15, 2014I am trying to compile an OpenGL program in Ubuntu.This program opens a blank window.
Code:
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#include <cstdio>
#include <iostream>
int main(int argc,char* argv[])
[code]....
C/C++ :: Sending Data To USB Port In Ubuntu?
Apr 21, 2014How to send a keystroke or a mouse event to another running process in Ubuntu? I want to write a C program that reads data from the USB port sent by AVR Micro Controller board continuously.In response to that it checks the data received and sends a command to another process running on the computer? Example,when the program reads 101 from the USB port it sends left mouse button down to the VLC media player window that is currently running?
View 1 Replies View RelatedC/C++ :: Read CSV File From Flash Drive (Ubuntu 12.04)
Mar 26, 2013I want to read a file from my flash drive called text.csv. However, I cannot even open the port where my flash drive is connected. This is the code that I am using, but I get error since the first part. When I run the program it says "fopen Error". I am using Ubuntu 12.04.
#include<stdio.h>
#include<string.h>
#define SIZE 1
#define NUMELEM 5
int main(void) {
FILE* fd = NULL;
[Code] ....
C++ :: Program Code To Create Database Add Delete Record In Ubuntu
Feb 13, 2014i want programcode which can be executed for create database add delete record in ubuntu
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