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General C++ Programming - January 2015 (Page 9)

This is the error message I keep getting. main.obj : error LNK2019: unresolved external symbol "public: __thiscall Defense::Defense(class std::basic_string<char...

[2 replies] Last: Wow. I can't believe I missed that. Thank you so much. I really apprec... (by Boomers)

by beko

Ordering a map by value

So I have a map of the form: std::map<std::string, int> m; I want to order this by its int value, but I don't know how to write such a function. I've had ...

[2 replies] Last: You could use boost::multi_index. (by kbw)

by ShazzyFeey

Switch Statement

Question: The program is about to compare any two numbers. Then, it will display whether the number is minimum or maximum. Please use switch statement. Here'...

[12 replies] Last: > I HAVE TO USE SWITCH!!! IT's PART OF THE QUESTION switch( (x>y) - ... (by JLBorges)

by BKR1888

Changing String to bool?

Hi I want to change string to bool but I'm having trouble doing this. Any help is much appreciated. #include <iostream> #include <fstream> #inc...

[2 replies] Last: > I want to change string to bool but I'm having trouble doing this. ... (by JLBorges)

by elliven96

Error Prompt

Okay, hello. I would like to ask if there is a problem with my codes that it gave me an error message that sounded like 'Fault: access violation at 0xXXXXX: rea...

[4 replies] Last: you should check code again. (by AssignmentExpert)

by MarkyMark

Dynamic Array Allocation Program

I am trying to read from a file the names, id numbers, and 4 grades of 5 stduents. Here is the code: #include "stdafx.h" #include <iostream> #include <fst...

[4 replies] Last: Yes, there is a very simple way. std::vector<> is very easy to use. ... (by JLBorges)

by HalfNOoB

C++ Camera/Collision Detection Problem

Hi guys Still working with SDL2 and c++ my map collision is messed up since I implemented my Camera. I do understand that everything has a relative Position o...

[11 replies] Last: Anyone? This is a voluntary Project for School making out 100% of my e... (by HalfNOoB)

by chamb1990

where am I going wrong?

Hi there Im a complete 'NOOB' to c++ and an absolute beginner. Im creating a program with parameters to convert pounds to euros, I keep getting this errorc2447:...

[1 reply] : void showPriceInEuros(int pounds, int euros); // is wrong { // your... (by sujitnag)

by kulkarnisr

Selecting the design pattern for validation

I am looking into some design pattern which helps me for validation. Please let me know if you have any suggestion. I thought about using strategy but not s...

[3 replies] Last: Thank you (by kulkarnisr)

by EpicAll Rounder

Horrible Error: LNK2019

Hey. I have a real problem. I am making a small 2D game and am trying to set up the SDL, but when i try compile it, these horrible error appears: Error 2 err...

[2 replies] Last: You forgot to link to opengl32, or you're using GCC and need to reorde... (by S G H)

by dkaip

cannot bind ‘std::basic_ostream<char>’ lvalue to ‘std::basic_ostream<char>&&’

Hello. In code in my project i have no problem. But sinse remove it in new header file compiler says cannot bind ‘std::basic_ostream<char>’ lvalue to ‘std...

[12 replies] Last: The all mesage ... main.cpp||In instantiation of ‘stringify operato... (by dkaip)

by VitorR

Converting numbers - the easy way

Good morning everyone, I'm a games/apps developer and right now I'm developing games/apps for iOS, Android and also PC / Facebook. I've also been working on C+...

[2 replies] Last: Is there any easy way to code a value conversion From where to where... (by MiiNiPaa)

by BKR1888

wrong check for Batch code entry end condition?

#include <iostream> #include <fstream> #include <string> using namespace std; int check_Pythag(int DIMA, int DIMB, int DIMC) { if (DIMA*DIMA == DIMB*DI...

[4 replies] Last: This is a duplicate topic. dhayden gave the answer in the other one... (by TheIdeasMan)

by MissKaramatic

Cannot seem to make code display lines

Hi! I'm trying to write a code that displays lines between user designated points with circles at each point, but I can't get the lines to display! I'm at a los...

[1 reply] : Hi, Please don't do multiple posts about the same topic, just keep th... (by TheIdeasMan)

by cosmos

what's different between pass vector iterators and deque iterators in following code

namespace sort { template <typename Itr> using type = typename std::iterator_traits<Itr>::value_type; template <typename T> using viterator = ...

[4 replies] Last: thank you very much (by cosmos)

by MissKaramatic

NEW QUESTION EDIT: cannot convert int to int*

Hi, I'm a first year c++ programmer and am having trouble with this code. The errors are... error C2059: syntax error : ']' for this line drawPolyLine(x,...

[10 replies] Last: now I just have to figure out why my graphics aren't what they're sup... (by MissKaramatic)

by Sheldon255

Random Number Guessing Game

Write your question here. I am trying to get the user to enter the min number allowed and the max number allowed for the random number to generate between. I a...

[2 replies] Last: Thank you, I will try that when I am back in school friday. (by Sheldon255)

by vastrolorde

Values wont stay negative

I have a function that rotates a vector 90 degrees. Only problem is, i never get negative values. For some strange reason, no matter what i do, the value of x i...

[8 replies] Last: It rotates point 90° counterclockwise around point [0; 0]. Everythin... (by MiiNiPaa)

by loganathan

Friend function can't able to access private member

Am trying to write table object into file. Here's the source code .hpp file class Table { private: int table_no; std::string table_type; bool ...

[4 replies] Last: Hi MiiNiPaa.. i can't write the programme of object oriented programmi... (by black eagle)

by lolwe

Satck Input/Output files

Create a program that contains the following functions: -create two dynamic stacks with integer data contained in an external file. -Sort items in stacks by t...

[no replies]

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