Using GDB, I am able to find out that it crashes at the "++iter" as the .h file indicate it was a "++" operation for the iterator. Tracing up the stack frame it indicate it crash during the copy constructor of some "__rb_tree_node". I did some Googling and it seems that is some Red-Black tree implementation for the map. Honestly I do not quite understand the Red-Black tree and I believe STL map is a very very well tested container, so the problem must lie in my code so that I can look out for it.
{ int codice; char* nome; char* cognome; int esami; printf("Leggi uno studente da tastiera e memorizzalo in una struct "); lettura_studente(s1, codice, nome, cognome, esami); return 0; }
[code]....
In conclusion I'va two problems:
1) Program crash; 2) I can't read struct studente within parameter function. What are the problems?
I'm writing a code using least mean square to fit a sample of data. The code is running till an iteration where it crashes and returns a segmentation fault core dumped
(the memory used is always closed to 2g mem=1805804kb,vmem=1926132kb, seems like the code can't go beyond) .
But If i try to fit at this last iteration the code works perfectly, so i think that I'm not trying to access a variable at a wrong index but it might be dynamic memory allocation ( a pointer to a matrix that I didn't free or something like that). The code is complex and calls too many routines, I'm combining cimg , c++ and old c. How can I track this error?
I need to do an equivalent of kill -11 <pid>(which is in unix) in windows.
I need to crash a process with SEGV so that it would dump core in windows. Is there any tool by which we can do this . Also is there any sample code through which we can achieve this .
In windows we have taskill which only terminates a process , but is unable to send a signal like SEGV to the process upon which it would terminate and dump core .
I wrote an application so I can manage the products for my e-commerce site. It uses MySQL 64 bit. Problem is some of my stores have in excess of 3 million products. The files that contain the data are all CSV. I parse the lines... format the data... write to table. On most of the stores which contain 10 - 60 thousand products it only takes max 3 min to write it all in. I have been running it on this one store for 6 hours now and it has barely made a dent. I know there are almost 3mil products in this one but it should be going much faster given what the speed was for the 60K stores. Is there a faster approach to handling a massive dump like this? I should also add that there are quite a few indexes. These indexes are there for ordering and fulltext search once the products have been activated on the site. I cannot create the table without the indexes and add them later since there is already preexisting data that is using the indexes.
I used to use OutputDebugString, and not using it now because it only allows to strings to be outputted, are there any methods that I can dump virtually anything to the console?
cout << thing << endl;
But what if I am not start running the program from the command prompt?
I am doing Histogram using pthreads and after long struggle on it.. finally it says 'Segmentation Fault (Core Dumped)'. I knew that error means something somewhere I am accessing to a wrong memory location.
Here is the code, and I can get it to compile successfully, but when I run the program, I get a "segmentation fault (core dumped)" error. I am guessing it might be related to a buffer overflow but I cannot say for sure.
Code: #include <stdio.h> typedef struc { int recordNo; char name[20]; int qty; float cost;
Ok, so doing an assignment for a random number game where you guess and it says too high or too low until you get it right or run out of tries. Here is what I got so far:
It's compiling ok, and displays the first call to the printf function from main. However, after this I get the 'Segmentation fault (core dumped)' at the terminal, presumably from the call to the dictionarySort function.
I had a little look around and found it is something to do with non-existent or not available memory addressing, I think? Even so, I can't figure out what is causing the issue in my code.
I need to find a string(&login=) from physical memory dump file.And i have to print the word or string following it.Is there any C# code for this problem?
Parts of this program are missing. The last few lines are confusing, since the variable 'a' gets incremented then decremented. But there are no loops. I understand that the value of 'a' is passed to 'c' before 'a' is changed in both cases.
But where, and when, do the changes take place? Is the decrement ever processed? Is there a better way to write these lines?
Code: main(){ int a = 21;int b = 10;int c ; c = a++; cout << "Line 6 - Value of c is :" << c << endl ; c = a--; cout << "Line 7 - Value of c is :" << c << endl ; return 0;}
I am trying to call Display menu. If up key is pressed Displayed has to be incremented and stay in particular window if Decremented, go to previous Display function and show previous Display function. LCD & Keypad Shield Quickstart Guide | Freetronics
void main() { int a=1; cout<<a++<<" "<<++a<<" "<<a++<<endl; }
If I execute the above program i should get 1 3 3. But I'm getting different values when I executed this program. The values that I get after execution are 3 3 1.
I have created this code; it is a taxi management system. I've made a class 'List' which handle a linked list structure of the waiting taxis and waiting passengers. The class has a public int variable: waiting, which keeps track of the number of waiting taxis/passengers.
#include<iostream> using namespace std; class Queue{ //Class for indivdual taxis and passengers, which will be members of linked list. public: string id; Queue *next; Queue (){
[Code] .....
But when I run the code and type in a new taxi number, the code does not increment the number of taxis by one the linked list by one. I can't seem to find the problem.
BTW, in the 'int main', I've added "<< taxi_list.waiting" at the end of the line after the user inputs the new taxi registration number, so that I can see how many taxis are now on the list. This is what is being shown as zero, no matter what.
I have a counter that onclick should increment 1 and it does that on click, but if I click the button again, it won't increment again. Instead it will be stuck at 1. How can I make it go up if the button is clicked more than once? Also this is a web application.
protected void submitAnswerButton_Click(object sender, EventArgs e) { int counter = 0; if (mathAnswerTextBox.Text == answer.ToString()) { answerStatus.Text = "Correct!";
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data;
[Code]....
I have driver table this is my fields as following DriverID INT DriverName nvarchar50 Nationality nvarchar50 Address nvarchar50 I have form driver have 4 texbox textbox1 DriverID textbox2 DriverName textbox3 Nationality textbox4 address this table have two records
when i press buton next (NextBtn_Click)to go third record it not accept I need next button increase by 1 if record not exist and update this in table How i do this example if i have two records
1 aln american newyork 2 adam british british
when i press next button it ok work in records exist but when i press next button to third record it not accept why what i need is when press next after 2 it come 3 in text box driver id and update this number in table
I created a table called registration and I have set an auto increment ID for each record. The problem is when I delete a certain record the ID didn't remove or deleted, for example if I entered these records: -
1,Bob,Bob123,Bob_2@hotmail.com then if I deleted it the next id record will be 2 which is supposed to be 1.
here is the SQL Command:-
CREATE TABLE Registration ( Reg_Id INT PRIMARY KEY IDENTITY, Name varchar (255), UserName varchar(255) NOT NULL, Reg_Password varchar(255), Email varchar(255), Reg_Rank varchar(255) );
I have a class I am building called date and I've built all my functions to run and done all the necessary error checking in each function. However, my last and final function I have to write is where the # of days passed in as a parameter and then I have to increment the days by that many. And if the user does not increment any days at all in the parameter and leaves it blank, then it automatically increments by one day. I am having trouble with this. So for example if the user was to do this:
Date d1(10, 31, 1998); // Oct 31, 1998 Date d2(6, 29, 1950);// June 29, 1950
d1.Increment(); // d1 is now Nov 1, 1998 d2.Increment(5);// d2 is now July 4, 1950
The function starts out looking like this
void Date::Increment(int numDays = 1) { }
I know I have to use a for loop to accomplish this. I just don't know how to get it to where the days passed in will go to the next month and then days passed in would go to the next year.
