[c++] Forum Topics

Everything works well, but I couldn't figure out how to use the else statement in case the user inputs 0 as a number..any comments/suggestions? [code] /* Program description: Create a program that prompts for two integer values. The program will display whether the integers are either: - and +, + …

I am a student with an assignment to wirite a program that makes change but i am not getting the correct output what am i doing wrong? [code] #include <iostream> using namespace std; //function prototypes int change1(float); int change2(float,float); int change3(float,float); int change4(float,float); int main() { //declare variables float Purchase=0.0; …

[code] #include <iostream> #include <fstream> #include <string> using namespace std; const int MAXSIZE = 5000; double maximum(double nums[], int size); double combineMax(double max1, double max2, int size1, int size2); int main() { string inputFileName1, inputFileName2; ifstream ifp1, ifp2; ofstream ofp; double *num1 = 0, num2[MAXSIZE], *tmpPtr; int ctr1 = 0, …

I dont know what they mean by undetermined character constant [code] #include <iostream.h> #include <stdlib.h> class student { char st_name[25]; char st_major[25]; int i_test1; int i_test2; int i_test3; int i_average; char ch_grade; char ch_option; public: void getdata(); void processdata(); void putdata(); }; int main() { do{ student.getdata(); student.processdata(); student.putdata(); cout …

I was recently given a list of possible C++ interview questions by a recruiter for a firm on Wall St. One of the questions was: [b] How would you generate a compile time error if the sizeof(int) is not equal to 4? [/b] I was thinking along the lines of …

I am very new to c/c++ programming. i was writing a few lines of code and after compiling and running the program i did not receive the desired output. can you please help me in this matter. /* Test.c */ #include <stdio.h> main() { char i[30]; clrscr(); printf("Enter a name: …

i got this code segment frm a bk...but am not understanding it....help me out... :?: int place[4][3]={{1},{1,2},{1,2,3},{1,2,3}}; int row,col; for(row=0;row<4;row++) { cout<<'\n'; } for(col=0;col<3;++col) { cout<<setw(3)<<place[row][col]; } :rolleyes:

Hello I know this is not good code, but i was wondering why dubble delete gives an error (not an exception!!) and dubble free doesn't?? If new/delete works like malloc/free. Is the error caused by the destructor?? and if so why??? [code] Integer *m = (Integer*)malloc(sizeof(*m)); free(m); free(m); Integer *m …

Hi..this is a program to find if the no. is prime and to find the factorial of a given no. i have validated this program ..so that it gives an error message and [U]exits[/U] when negative nos. or zero are given as input. Instead of exit..i want to display the …

hai friendz, I am a Bioinformatics Masters degree student. I am doing my final semester project in the topic Molecular Docking on C++ in Linux platform. During the programming I felt a problem in calling/executing a progam in to my program. I have to call a program which accept a …

How can i declare an array with variable size? i dont want it to be dynamic array, it have to be static. I mean the following: [code] int size; cin>>size; float array[size]; [/code] the previous code when compiled gives me that a constant expression required for the array declaration, although …

Hi. My name is Roxanne and I am a C++ / C# programmer. In the company that I’m working at, we are programming a business program for the customers and the software have been done in Visual C++ 6.0 I have to create and add to the software a new …

I can't seem to get this code to displayEmployeeInfo if the user enters a negative number for ID. Also I can't seem to get a total of all wages to display. Any helpful hints would be greatly appreciated. Thank you! [code] #include <iostream> #include <iomanip> using namespace std; #include <string> …

Hi all, when does the memory gets allocated to the function i.e. at compile time or at run time. If its at compile time the how is it? Thanks Tushar

[code] #include <stdio.h> int i,type; int buffer[100],line[50]; struct student { char name[20]; int age; int id; }; struct student students[3]; int main() { for(i=0;i<3;i++) { printf("please enter your name:\n"); fgets(students[i].name,sizeof(students[i].name),stdin); printf("please enter your age:\n"); fgets(buffer,sizeof(buffer),stdin); sscanf(buffer,"%d",&students[i].age); printf("please enter your id:\n"); fgets(buffer,sizeof(buffer),stdin); sscanf(buffer,"%d",&students[i].id); } while(1) { int *ptr=students; printf("Please enter the …

I found this neat little GUI calculator program on the net. It uses a function called _gcvt(double val,int limit,string cBuf), which seems to be used to convert a double val to a string cBuf, with some formatting and limiting. I replaced it with sprintf(), but the output looks rather crude …

ok im trying to make the towers of hanoi program but i get the following compile error: [Linker error] undefined referrence to 'WinMain@16' Heres the code, thanks for any help [code] #include <iostream> #include <cstdlib> using namespace std; void towers (int numDisks, char source, char dest, char auxiliary) { static …

[code] #include <iostream.h> #include <string.h> #include <stdlib.h> #include <iomanip.h> class hope { char st_title[25]; char st_website[35]; char st_star[25]; char st_maker[25]; char st_rating[5]; int i_minutes; int i_year; float f_cost; int i_age; char st_status[6]; char st_response[20]; char ch_option; void getdata(); void processdata(); void putdata(); public: void run(); }dvd; void main() { char …

[B]I need some help finding a windows tutorial for C, not C++.[/B] (I am trying to learn C, compile about fifty pages of reference notes on it, and THEN learn C++. That way I dont have to worry about mixing things up, I will have notes and can forget about …

need help my program has a table and when progrm run , if for any reasen the power went off i missed last records that i post to table any body can tell me what can i do? :!:

First of all, I am new to this forum. If I post this thread incorrectly, please let me know so that I will know better next time. :cheesy: I am having difficulty understanding what user-defined simple data types, namespaces, and string type have to do with calculating taxes. I am …

How would you write a program in c++ that would print all pythagorean triples from 1 to 50? :?:

I'm writing a program that reads a text file and puts it into an array of structs. There can only be one transaction per line in this format: custNumber firstName lastName numItemsPurchased amtSpent What I dont understand is how do you put the data in the file into an array …

hi guys, Below is my program and it is giving me turf time.I want it to read-in 1-for counting cars,2-for counting money and Esc-key for displaying totals.Pliz give me ideas.(i'm using Microsoft-visual c++) [code] #include <iostream> using namespace std; #include <conio.h> class tollBooth { private: unsigned int cars; double money; …

I was just thinking if it is possible to determine ones own ip address with the help of C++???Can someone please clear this query of mine

Hi there. Im new to C++ programming, but I know my way around Delphi. I'm doing a project that must be made in Borland C++ Builder. My problem is right aligning items in TListBox and TComboBox. Any help would be appreciated. kv.TSverrir

I've been working on this for hours I know the errors are staring me in the face but I just can't see them. Any help would be greatly appreciated. //prb01-1.cpp //This program calculates the total surface area of a pool #include <iostream.h> #include<iomanip.h> //using namespace std: int main() { const …

Need a bit of help formatting my output. I'm not even sure that this can be done. The output from the following code looks like this: Here is your output! ******************** rval = 0.954316 tval = 9.03351 p = 0.999997 Two tailed value = 5.716140e-006 Ok is there anyway I …

Where can i find more info about the inner implementation of new/delete?? There is a lot of info about the different kinds of malloc but i can't find anything about new/delete. IS this compiler specific or defined by the standard?? thx in advance

[code] // PROGRAM TO FIND THE NEXT DATE OF A GIVEN DATE #include<iostream.h> #include<conio.h> class udate { int day, month, year; public: void read() { cin>>day>>month>>year; } void write() { cout<<day<<"/"<<month<<"/"<<year; } friend int valid(udate); void operator++(); }; int valid(update D) { int d = D.day; int m = D.month; …