C++ :: Address Book - Program Stops After Cin
Dec 6, 2013the program is of an address book. the syntax is all fine, and the initial menu of options does show up. but once you punch in the cin, the program just stops.
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C++ :: Address Book - Add / View Entries
Sep 3, 2014This program is an address book where you caan add/view entries. I'm having a problem printing out entries. Why the information isn't getting saved into the structure array?
Code:
#include <iostream>
#include <string>
using namespace std;
struct contactinfo
[Code] .....
C :: How To Develop Address Book For Contacts
Feb 19, 2014I have to develop an address book for contacts, and it has to be able to add contacts, delete them, and show them all while implementing dynamic memory allocation. I'm thinking I should be going with an array of structures, but I'm not sure how to handle that in the context of this problem. I realize deleting them will most likely end up just being me using the free function. i'm thinking I should show all the contacts with a for loop, but say u deleted contacts, and those memory spaces were now absent, how would I go about it because the looping structure would be flawed wouldn't it.
View 3 Replies View RelatedC :: Creating Simple Address Book Struct - For Loop?
May 11, 2014My address book will be simple, and the thing's that I'm expecting to use in it are :
Pointers, Linked Lists
Malloc
Structs
Typedefs
Makefile, header file
Putting functions into different program files
I have started the program trying to create a struct, and getting it working with a couple of entries before going onto user input and splitting it up.
Code:
#include <stdio.h>
#include <stdlib.h>
int main(void) {
// Struct type address book. Just a name, a number and a pointer
[Code] .....
I'm a bit lost at this point... My knee jerk thought is to create a for loop, and cycle through the list.
I'm not sure how this would apply to this though? Without using the familiar type of print loop such as :
Code:
for (i = 0; ;i++) {
printf("%i
", array[i];
}
I'm thinking that I need to create a temporary struct that can be used to assign the value of the next struct in the list, and then somehow print from that....
I'll try and write the logic out :
while temp != NULL (The last node value is assigned NULL to show us where the end of the list is)
create a temporary pointer that can be used to keep track of where we are in the list.
print out the current entry name and number
then assign the temp pointer value to the * next of the current struct. So if we are in entry1 the *next should be the address of entry 2.
Print out entry 2 name and number, assign entry 2 next to the temp value.
C++ :: Fseek - Program Crashes And Stops Responding
Feb 9, 2015i wrote a little program with fseek. It works good till it reaches the first fseek(). Then it crashes and stops responding.My code:
ifstream inp("myfile.txt");
if(!inp.is_open()) return false;
inp.close();
FILE *f;
fopen("myfile.txt","rb");
[code].....
C++ :: Queues Program Suddenly Stops Working When Input Value
Feb 22, 2013I'm having troubles with this program I made. Put it simply, it's a basic program using Queues. Whenever I try to input a value, my compiler(Dev C) suddenly stops working. The .exe file crashes and I've no way on how I can execute my program.
Code :
#include<iostream>
using namespace std;
int *queue;
int rear, front, queueSize;
void enqueue();
void dequeue();
void display();
[Code] ....
C++ :: Program That Ask User To Input 5 Books With ISBN Title Of Book With Author
Jan 29, 2013So I was asked to create a C++ program that will ask the user to input 5 books with the ISBN, Title of the book and author/s. It will ask for 3 authors, if the book has only one author, you should leave "author 2 and author 3" blank and display only one author. Thing is... I'm having a problem with the if else condition at the last part of my program. I cant seem to make it work.
#include <iostream>
#include <cstring>
#define SIZE 5
using namespace std;
int i;
[Code]...
C++ :: Program That Will Display Name / Address And Age?
Jun 21, 2014C++: write a c++ program that will display your name, address and age..
View 3 Replies View RelatedC++ :: While Loop Stops Output
Jun 19, 2014As I was testing it, the program suddenly stopped giving an output. Here is the code:
#include <iostream>
using namespace std;
int main() {
cout << "Ten people ate breakfast with you this morning. Each of them " <<
"had pancakes.
Please enter how many pancakes each of the ten people " <<
"ate.
" << endl;
[Code] ...
The while loop after int glutton does not work and seems to stop the program. I replaced the "glutton" in the cout with "testing testing" and it still did not work. However, when I commented out the loop, it appeared. Finally, it can't be what's inside the loop, because I commented that out too, and it still didn't work.
C++ :: Grade Book - Using Vector To Get The Grades
Sep 15, 2013I am trying to make a grade book and using a vector to get the grades. I am getting errors all over and I figured this would happen because this is the first time I ever used vectors.
Code:
#ifndef ___2B__Homework__LetterGrade__
#define ___2B__Homework__LetterGrade__
#include <iostream>
#include <vector>
[Code] .....
C :: Book Database - File Output
Feb 7, 2013Book database. I use scanf to store book name,author name and year when is book written. Example:
Code:
scanf(" %[^
]",k[i].bookname);
I have problem when i want to printf all books from database with this:
Code:
for(i=0;i<counter;i++){
fscanf(f,"%s %s %d",k[i].bookname,k[i].author,&k[i].year);
printf("
%d %s %s %d",(i+1),k[i].bookname,k[i].author,k[i].year);} Output:
Number Book name Author name Year
1 King John 0
2 William Shakespeare 1590
How can i fix this?
C :: Readline Function From UNP Book And Syncterm
Jan 15, 2015I'm writing a program that uses the readline() function that comes in the Unix Network Programming book, when I use telnet to connect to my server the function reads the input perfectly displaying the username as the user types it in. However, when using a telnet client called syncterm it accepts the user input but does *not* echo it on the screen and I can't figure out why.
View 3 Replies View RelatedC :: Program Not Printing Mac Address Correctly From Ethernet Header
Jun 2, 2013I have a procedure that prints the fields of ethernet frames and ip headers. I have an issue with the src mac addr being printed incorrectly and incompletely. The part in red is the trouble code.
Code:
1#include "sniffer.h"
2
3void print_headers(struct ethhdr * ethhdr, struct ip * iphdr){
4
5 char ipstr_src[INET_ADDRSTRLEN];
6 char ipstr_dst[INET_ADDRSTRLEN];
7 char macstr_dst[ETH_ALEN], macstr_src[ETH_ALEN];
[Code] ....
C :: Exe File Stops Working And Not Able To Enter Data
Sep 13, 2013I am trying to enter data to a structure some 8 times, but not able to do so. Here is my code.
Code: #include<stdio.h>
struct _Timer {
unsigned int HH;
unsigned int MM;
}Time[8];
[code]...
But when I enter any data and press enter , the .exe file stops working and not able to enter data.
C :: Phone Book Saving To File And Retrieving
Jul 14, 2013I am supposed to make this phone book save to a file and then be able to retrieve it.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
typedef struct Phonebook_Contacts
{
char FirstName[20];
char LastName[20];
char PhoneNumber[20];
} phone;
}
[code]....
C++ :: Code Stops Executing After GetScores Function
Nov 11, 2014I am currently working on a c++ project that will input students and process their grades. I encountered a problem and my code stops executing after the getScores function. Im not sure what the problem is, but im guessing its something within the function and the loops.
//Name: getScores
//Description: Will get scores for student
//Parameters: None
//Return: testScore
double getScores()
[code]....
Visual C++ :: Find To Look For Variable Stops Working?
Oct 3, 2013Just using Find in my source code to look for variables or whatever, works once or twice then just stops - Doesn't find anything even if it's there. If I restart VS it works again, but not for long.
View 1 Replies View RelatedC++ :: Play Sound On Key Press - Stops Working After A Few Seconds
Sep 15, 2012I'm making an apllication which needs to play .wav file when user type something inside QTextEdit. I made some code but after minute or less the sound stops, so I made silly workarround. After 30 clicks I invoke sound->stop(); and then the loop start again, that works, but it's not good, can you give better solution. Here is my code:
Code:
int count = 0;
bool MainWindow::eventFilter(QObject *o, QEvent *e){
if(e->type() == QEvent::KeyPress)
{
tipka->play();
tipka->seek(0);
[Code]...
C Sharp :: How To Pick Date / Time When Serial Port Starts Reading And Also When Stops
Aug 18, 2014using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.IO.Ports;
[Code] ....
How to pick date / time when serial port starts reading , and also when reading stops ?
C++ :: Are Reference And Address Same
Aug 2, 2014Are Reference and Address same or Different?
View 10 Replies View RelatedC++ :: Finding The Address Of A Bitfield
Aug 14, 2013So I obviously can't take the address of a bitfield, but is there a way to get the address of the field holding the bitfield? What I'm trying to do is find the address of the parent field of a bitfield in a class. For example
Code:
class Foo
{
public:
int a;
int b : 4;
int c : 28;
[Code] ....
My goal is to get the offset address of the int storing c in class Foo. But offsetof uses the address of c, so I get a compile error since c is a bitfield. What I wanted as output from the above would be "4", since an int is 4 bytes (on my system). So the int holding both b & c starts 4 bytes from the start of the Foo class. Is there any way to do this in c/c++?
C++ :: Output Is Showing Address Instead Of Value
Dec 7, 2013I've run across this issue before, but for the like of me, I can't figure out what keeps causing it. The problem compiles and runs as expected; however in the salaried object (Employee #1 in main.cpp) the console displays the number of vacation days as -858993460 instead of the value entered.
The parent Employee class is abstract with calculatePay() and displayEmployee() being pure virtualls and with a Benefits, Salaried, and Hourly class derived from it.
The Salaried displayEmployee() and the portion of the Main.cpp that contains the salaried object follows. What causing this?
Salaried displayEmployee()
Code:
void Salaried::displayEmployee()
{
cout << endl;
cout << "Employee Information" << endl;
cout << "----------------------------------" << endl;
cout << "Employee Name: " << setw(7) << FirstName << " " << LastName << endl;
cout << "Gender: " << setw(12) << Gender << endl;
[Code] .....
C :: Display Address Of A Pointer
Jan 31, 2014I've got a problem with a piece of code that it doesn't seem to work anymore.
Code:
#include <stdio.h>
#include <conio.h>
main () {
[Code] ..... i
I chose a to be 5 and it displays the following:
"Type a value for a:
5
5 in octal is: 5
5 in hexadecimal is: 5
Process returned 23 <0x17> execution time : 1.031 s".I first saw this when trying to display the address of a pointer. Am i missing something? I used to run this code on dev-c++ successfully but after a day or so of practice, it's not working anymore. I switched from dev-c++ to code blocks.
C# :: Parsing String Into IP Address
Oct 1, 2012So im trying to parse a string into a Ip Address but i have a problem, the IPAddress.Parse method only works for ipv4 address's how do i parse ANY Ip address into a string, if i use the IPaddress.Parse method on my public(remote) IP it throws an exception but on ipv4 local ip it doesn't how do i parse ANY ip address the user inputs as a string as an Ip Address?
View 5 Replies View RelatedC++ :: Store Address Of Objects
Oct 27, 2014I'm using the SDL library and trying to match the C++11 standards... Anyway, I thought about a vector where I store all the addresses of game instances, so I can access them anytime... I tried with this function:
int instance_new(std::vector<uintptr_t> &instance_id, unsigned &instance_size, Instance *pointer) {
instance_id[instance_size] = reinterpret_cast<std::uintptr_t>(pointer);
instance_size++;
instance_id.resize(instance_size);
return 0;
}
Where "Instance" is the 'parent' class of various child classes like the player. So, if I have to search the existing of a thing in my game, I should check if the address references to an instance of class. How can I do this?
C++ :: Displaying Address Of Character?
Feb 20, 2013When this programs runs it displays odd symbols for the address of the character. This is only part of the program, I took out the parts that already work.
#include <iostream>
using namespace std;
char again;
[Code].....