[binary] Forum Topics

Hey guys, I would like some help regarding saving or reading to or from a bin file. I've read several online tutorials about file input/output, however it doesn't given specific information when applying it to both an array of structures. My knowledge of pointers is weak, as I constantly need …

[CODE] #include <stdio.h> #include <stdlib.h> typedef struct filedata { char data[100]; }data_t; data_t * fname=NULL; //IS AN ARRAY OF the structure filedata REQUIRED HERE void quit() { printf("\nPress enter to exit"); fflush(stdin); getchar(); } int main() { char ch; fname=(data_t *)malloc(sizeof(data_t)); FILE *fptr=NULL; atexit(quit); printf("Please enter the file name to …

So, I've written a Custom Binary Format outline but I'm not sure how to translate it to code. I was looking for a few tips on where to get started? Here's my outline. MAPDATA { signature // U24 0x4D, 0x41, 0x50 (MAP) version // U8 0x01 width // U16 (MAX …

I'm trying to modify this code: class Tree: def __init__(self, cargo, left=None, right=None): self.cargo = cargo self.left = left self.right = right def __str__(self): return str(self.cargo) def print_tree_inorder(tree): if tree is None: return print_tree_inorder(tree.left) print(tree.cargo, end=" ") print_tree_inorder(tree.right) So that it adds parentheses around every operator and pair of operands. …

hi all, this is some extra credit from class we sat around cleaning up code today this is what we came up with public boolean equals2(IntTree t2){ return equals2(this.overallRoot, t2.overallRoot); } private Boolean equals2(IntTreeNode r1, IntTreeNode r2){ if(r1 == null || r2 == null){ return r1 == null && r2 …

Hello all!Im trying to write a program that accepts a string from users and then converts each character in the string to its corresponding 8-bit binary code and store it for further manipulation on obtained bit. I have the following code but it is not executing as expected : #include …

Say I have code like this... typedef struct { unsigned A:1; unsigned B:1; } FlagStruct; extern FlagStruct *Flags; Imagine that the Flags instance is a shared resource in a multi-threaded application. Say thread #1 decides to read the value of Flags->A but thread #2 decides to set or clear Flag->B …

Alright, so I am building a Converter to convert ASCII to Binary and for some reason, the for each loop stops working when it hits a space, and I have no idea why. I'm probably just over thinking it. Extra: Can you tell me how to force the output binary …

Hello, I have a bug in my program somewhere and I cannot understand why. The program merely prints data from a binary file. Here is the code: #include <iostream> #include <fstream> #include <vector> #include <cstdint> using namespace std; int main(int argc, char *argv[]) { if (argc!=2) { cout<<"Invalid argument count, …

This is what I have to code. Input an array of numbers(any numbers that user inputs from standard input, aka keyboard), remove numbers from array that are not 0 and 1. Thay array should now be bitwise moved with << or >> (again user choses the number of spaces moved …

this code was error.please help me fix it include <iostream> include <conio.h> include <algorithm> using namespace std; int a[]={1,5,7,4,9,8}; BST*binary_search_tree; struct BST{ int value; BST* left; BST* right; }; int search_bst(BST* node,int key){ if(node==NULL) return -1; if(key<node->value) return search_bst(node->left,key); if(key>node->value) return search_bst(node->right,key); else return node->value; } void insert_bst(BST* &treeNode,BST* newNode){ …

Hey guys, this is my solution to a simple problem and I was looking for some feedback on my code. Please post any criticism you may have about it. //Test project for string to binary conversion// #include <iostream> #include <string> using namespace std; void binConvert(string ConvertMe){ int ArraySize = ConvertMe.length(); …

I have an interesting problem and have searched the internet, but haven't yet found an answer. Consider the following function: function get_setting_values_from_file( $parameter ) { exec("/usr/var/binary --options $parameter", $output, $return); $settings = file( $output[0] ); } I need to unit test a similar function. I am currently using phpUnit for …

Hi, thanks for looking at this thread. :) **The goal:** I have this 2D boolean array (from my [decoder](http://www.daniweb.com/software-development/java/threads/452559/decoder-simulatorcalculator-complement-of-2-problem) thread). I managed to write a method that goes through the rows and appends a '1' or a '0' to a string based on what's in the array (1 for true, …

I got a java test done and somehow my answer for this question is incorrect, can you guys help me explain it? So the question is: in a binary tree with height 3 the least deep leaf has depth 2 (Root has depth 0). a)Max numbers of nodes this tree …

I have a script that uploads documents, it uploads them in the destination folder, but not the info about the document. Pleasa help i need this as soon as possible. No errors show. <?php $UploadDirectory = 'C:/wamp/www/agenda1/uploaddok/uploads/'; //Upload Directory, ends with slash & make sure folder exist $SuccessRedirect = 'http://localhost:8080/agenda1/index2.php'; …

can anyone show me how to upload a binary file using Ajax (and php of course) I mean the html and js ?

Hi everyone. I'm tying to understand the instruction below. I wish someone could explain me what it means: tree->destroy(((AvlNode*)(*position)->data)->data); // destroy the left branch of the binary search tree starting from the specified node static void destroy_left(BisTree* tree, BiTreeNode* node) { BiTreeNode **position; // can't remove from an empty tree …

Hello everybody. Here is my remove method for bst. As you all know, there are 3 cases to consider while removing a node from bst. For the last case, when a node (which is to be removed) has 2 children, I want to use predecessor instead of successor to change …

Ok so this is my task: Description: Create a generic class called GenBinTree. GenBinTree will use nodes that store a value of the generic type to store its contents. This tree will not be a search tree (no ordering of nodes by value). What ges me its the the part …

hi i have an string array in which i have combinations of 0's and 1's like on index 0 i have "01", on index 1 i have "11", on index 2 i have "00", on index 3 i have"10" etc is their any possibilty that i can take these values …

**the code works perfectly, just i got something i dont understand...** i'v been trying to get a hold of recursion and sorting for about 3-4 days now, im getting some of it, but still not happy enough.. i searched for some good code for binary search and merge sort on …

so i was trying to make a binary tree program. just inserting and deleteing. some how i messed up. i think insertion is ok till level 1 after that stays on level 1 only. also the function to delete the whole tree is not working. it only deletes node at …

Hi, i need to create a binary matrix (one which elements can only be 1 or 0) in openCV. The nearest that I was getting is creating a matrix which elements are 8-bit values using the CV_8UC1 dataType. There must be another dataType which specifies that the matrix elements are …

I would like to make a memory allocation: `(*matrix)[i]=(int*)malloc(sizeof(int)*sz);` But I have got an error message: Invalid operands to binary * What should be the problem?

Hello all! I have used this forum many times in the past to solve a variety of programming related problems, but am truly stumped on a segfault within a binary search tree. I have isolated the segfault to a fscanf statement that look legitamate to me. The following code blocks …

Hello, I am trying to recreate a data type in java used by adobe, it is an unsigned integer 30 bits long or U30 by the specification. Anyway i am having problems understanding the binary output, the definition states: "The variable-length encoding for u30 uses one to five bytes, depending …

Hey guys im need some help with this binary calculator, you enter the amount of bits or n in and then it calculates the number? In order for you to understand my problem more I will explain why I am making this, I asked my dad how big 128 bit …

If a heap is like a binary search tree shouldn't it search in O(log n)?

Hey, Iv been working a lot with binary files recently and i am currently stuck trying to save a string to a file. The problem is i do not want the literal string value of "010100000000000100010011000000000001000100110" to be saved to the file I want the above binary string to be …