Beginners - C++ Forum - February 2011 (Page 9)

importing numbers 1 by 1 in a 2d array

Hi all, I have a working code here for importing numbers from a .txt file, one by one into a 2d array. #include <iostream> #include <fstream> #includ...

[no replies]

by kowbonez

Do not count multiple spaces as words

I'm making a program that counts the number of words from a user's input. So far, it works but only if the user inputs one space between words. Otherwise, the p...

[4 replies] Last: #include <iostream> #include <string> #include <sstream> // added ... (by mikeofthenight)

by sorthon123

C++ troubles

#include <iostream> #include <cmath> // for abs function using namespace std; // ---------------------------------------------- // Functio...

[1 reply] : you don't ever return anything from find_root. (by hamsterman)

by tonnot

A case of forward instancing, how to know if the object were created?

I have at my prog.h file Class tha_class; .... private: Myclass *the_class; And later at prog.cpp, I have a function that create the instance: ...

[1 reply] : have it point to 0. you should have all unused pointers point to 0. u... (by hamsterman)

by tonnot

Can't use Char buffer with strpbrk function ?

I have a fstream instance to read data from file. And I keep on very confused. BIN_BUFFER = new char ; (declared as char * BIN_BUFFER ) FILE.read (BIN_B...

[2 replies] Last: aaarrggssss ! Thank you (by tonnot)

by mothmann

Math arc length and points

Lets say I have a circle. radius = 16 center is point 0,0 i have 1 point on the circumference of the circle. i know the angle to the point. i know the x a...

[3 replies] Last: L/r = angle in radians? Yes. To find a point on the arc, you can... (by matsom)

by tonnot

Urgent ::I can't define a function to accept "" or NULL

I have myclass::operator << (std::string data) {} myclass::operator << (const char * data) {} myclass::operator << (bool data) {} Ok , if I call cl...

[3 replies] Last: Why do you call class<<NULL ? If you have a char pointer you can chec... (by Bazzy)

by gatmalice

Passing structures to a function [need assistance please!! D:]

I'm really lost on how to pass my structure to a function. Basically I have the listed structures, and I need to pass them to a function for conversion. Can ...

[9 replies] Last: You don't need to use pointers. You can pass it by (const) reference i... (by Bazzy)

by nekoxandu

ceil not working?

I cannot get this program to round the amount of gallons up to the nearest integer for some reason while using the ceil command inside the function FindGallons,...

[4 replies] Last: now it's telling me that in converting from an int to a double. //... (by nekoxandu)

by SFX9901

Point me to the right direction (no pun intended)

I am trying to create a program that would collect the number of students and movies for each student. The program will then dynamically allocate it and calcula...

[13 replies] Last: Thank you :) (by SFX9901)

by shan03

Linker error?

This s my code..I am using dev c++ compiler....I got the following error... [Linker error] undefined reference to `err_handler(void*, int, int, int, char...

[1 reply] : You need to link against the library that offers you the function err_... (by Zaita)

by gemineye904

Struggling with program using functions, vectors and sorting.

I've been assigned the following. Task #1: Define a struct type called Student. A Student has the following members: • last name (a string) • first na...

[3 replies] Last: Student LIST ; cout << "How many students are in the class?" << ... (by Zaita)

by pelotron

cin statement being skipped

I'm trying to validate the input of this double price variable. If the input is invalid, i.e. "string" or other non-numeric characters, it goes into an infinit...

[3 replies] Last: Cool, thanks guys. Another one down. (by pelotron)

by xCaldazar

cin char and spaces ' '

So I have run into this problem a few times in class lately. I have found one way around it but wanted to see if anyone could provide a little better informatio...

[3 replies] Last: There is also the noskipws manipulator. (by Duthomhas)

by tonnot

A strange behavior of overloaded operator '<<'

if have : myclass& operator << (std::string data); myclass& operator << (bool data); Ok I dont know what can be happen, but myclass<<"hello"; is proce...

[4 replies] Last: Likewise, you need to qualify all your argument types with const . ... (by Duthomhas)

by turbowhat

New to C++, code written, look at code 4 me?

Like the title says I'm a student, new to C++, I've written this app that plays this flippin rock, paper, scissors game but when you run it you have to type in ...

[5 replies] Last: Awesome, thank you very much, I appreciate the help. It looked more c... (by turbowhat)

by tonnot

How to process a few << << << operators as one ?

How can I do that ? I want to do for my function the same as cout <<"hello" << a_string << "how are you"; But every << are processed individually. ...

[2 replies] Last: If you want to have all the data delivered at the same time, you can u... (by Bazzy)

by gberg927

namespace and includes causing compiler issues.

I am trying to compose a 1 dimension function evaluation tool for a school project. I am pretty new to C++ and am getting some compiler errors. Function1D.cpp...

[4 replies] Last: It's going to be the same deal as before, you need to include Function... (by Roastern)

by daveofva

Variable being used without initialized

// David1 // Lab 14. This program takes user input and assigns // appropriate values to the sides of a triangle. #include "stdafx.h" #include <iostream> ...

[4 replies] Last: Oh, Awesome! Thank you so much! (by daveofva)

by knightx

Did I do something wrong?

Calculate the product of odd integers 1 to 10 using while loop and display result. #include <iostream> using namespace std; int main() { int count =...

[7 replies] Last: If you want to make this program to work, just swap line 14 with 15,... (by TJbla2e)

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Beginners - February 2011 (Page 9)