Beginners - C++ Forum - July 2011 (Page 23)

C++ undefined reference and exit error...plz help?

I'm using Dev C++ compiler. I keep getting these two errors. [Linker error] undefined reference to `taxAmount(int, double, double, int)' and ld returned 1...

[11 replies] Last: taxAmount is a function, not a variable... so maybe that's how OP tr... (by Catfish)

by Peyton

Complex Square Root

Hi, I'm just wanting to write a program that requests the integers a, b and c from the user, calculates the roots and displays the result(s). I get (nan, ...

[5 replies] Last: I use a different compiler, so I can't be sure, but try replacing 2 wi... (by hamsterman)

by vastrolorde

string to int

Im trying to writn stirng to int funtion for my string class. Its for learnig purpose. but i cant seem to find the correct thing to add into atoi. class Str...

[8 replies] Last: i have forgottne how to call my cti function If you have it accordi... (by coder777)

by xXmusicmanXx

help!

how can I stop this loop? getline is not reading until the end of the file like it should, and I don't know how to break the while loop. Please help! #includ...

[3 replies] Last: while(!fin.eof()){....} http://www.cplusplus.com/forum/beginner/3... (by muratagenc)

by muratagenc

custom strcat() question, is this code safe?

I got the following code from a book, it works but I don't think it's a safe function. Why? let me put the code first; void myStrCat (char * s1, char * s2, i...

[6 replies] Last: great tips, thanks. I also like the comment This is a minor auxiliar... (by muratagenc)

by soheilghafurian

logical operations for const char *

I have a simple question! why is this not true? (d == "cplusplus") when const char *d = "cplusplus"; how should I do the comparison then?

[8 replies] Last: Apparently! (by Nisheeth)

by Zarakava

Writing to a file, need help

well, I'm trying to learn how to write binary files, and I seem to have hit a snag. void save() { fstream myFile ("data.bin", ios::in | ios::out | ios:...

[15 replies] Last: So better use the stream mechanism. You can overload the << and >> ope... (by coder777)

by twentfiveu

I get an illegal initalization

#include <iostream> using namespace std; #include <string> class Event { public: void setEventData(string eventName, int hour, int minute, int ...

[3 replies] Last: that's related to pan's reply. you did define the class but after you ... (by chipp)

by Slaunger

Review of two simple function templates

Hi forum, First post here. I trying to learn myself C++ by writing small programs, which solves some of the problems at Project Euler (http://projecteuler.ne...

[6 replies] Last: It won't yield any overhead because gcd_helper's constructor does n... (by Slaunger)

by julzhef

Need help with an array

Hello everyone, I am trying to make the number of days in a month display when the user enters the month (1-12). For example, if the user enters the number 2, ...

[2 replies] Last: Here's how I'd do it: int main() { int month = 0; cout << "... (by creekist)

by jgirl2412

Random Number Generator

I created this program for a class assignment and it works fine but I noticed that sometimes it will return 2 of the same numbers in the same run. Is there a wa...

[5 replies] Last: That's what he's doing, creekist. The problem is he needs numbers wit... (by Disch)

by DirtyPowder

Nested loops not incrementing

Hi I am trying to make a nested loop that builds a triangle with the height based on user input. The trouble is none of my for loops seem to be incrementing. I ...

[2 replies] Last: Take a look at line 24, you are saying as long as ast is equal heightt... (by twentfiveu)

by ausairman

need help passing a stream to a function

I'm trying to get a function to use and add to an fstream, but it doesn't seem to work. Here's what I've got so far: void append_log() { fstream out(lo...

[4 replies] Last: hamsterman, that snippet ran fine. I did some looking and it turns out... (by ausairman)

by kyranstar

Have Problem

#include <cstdlib> #include <iostream> using namespace std; int main(int argc, char *argv ) { string answer; cout<< "what is your favorite book?\n"; ...

[5 replies] Last: Yes. It does. Thank you, though. (by kyranstar)

by Parkournerd

Where to learn GUI?

I can't seem to find anything helpful. I'm using Visual Studio 2011 (c++).

[2 replies] Last: visual c++ is GUI oriented. also i hope you mean 2010 i dont think th... (by vlad61)

by mantale1

Reading Data from file into 2-d array trouble

Hi all, I'm trying to write a program that will take tab delimited data from a text file and put it into a 2 dimensional array. I've been doing some researc...

[2 replies] Last: OK, so I now understand that the segmentation error was the result of ... (by mantale1)

by TLO

Excel does not see DLL anymore when used with GSL working function

Hi, I am new to C++ and request kindly help. I need to link C++ with excel, I managed to program basic DLL's with basic functions exported to Excel (+, square, ...

[no replies]

by wtf

My program executable is 128K.

Why is the size reported in task manager 552K?

[11 replies] Last: That's perfectly normal, it doesn't go any lower than that. Your appli... (by Athar)

by jeffsg605

Setting up code::blocks

I've only used dev-c++ and Visual C++ which comes with all the libraries. Does Code::Blocks not come with any libraries? And if so where do I find them and ho...

[5 replies] Last: Copy and paste the exact error message(s) you're getting. (by Athar)

by Shay9999

Array troubles

I'm having some problems creating arrays, anyone know what's wrong? int check; //The while statement effects the value of check while (...) {...

[2 replies] Last: Great, your going to make me read the one section I was avoiding >_< ... (by Shay9999)

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Beginners - July 2011 (Page 23)