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Beginners - November 2009 (Page 21)

I'm trying to write a function to find the number of twin primes (x and x+2 are both primes) between a and b which can be any very large integer. If I used ...

[3 replies] Last: Are you including and linking the necessary files? (by Bazzy)

by warp

Having a problem. I can`t compile "++count;"

Hello. I am just getting in to this language, and in the context of that I have started my biggest project to date. Iam making a program where you can enter...

[9 replies] Last: The count function is adding 1+ for every entry. Where should I inster... (by warp)

by rej3kt

do while loop is skipping

Hi all my do while loop is skipping one of my questions that i'm trying to ask. It is skipping the manx cat tail question, the only other prob is that it is no...

[11 replies] Last: got it sorted by adding another cin.getline underneath it =) (by rej3kt)

by Dissimulation

I feel like a newbie again, If functions not working

This is baffling me beyond belief, I have scryed through my code a million times. When i run this program the IFs in MovPlayer(); don't work. The first one alw...

[3 replies] Last: I can't thank you enough herbert. (by Dissimulation)

by prob

writing files

I am new to this and need some help. This program is suspose to write the assignment name, points possible, and grade in a file. Then it is suspose to display i...

[3 replies] Last: He probably thinks it does something else. (by closed account S6k9GNh0)

by userkiller

How can i make this?

i want to make something like this. How can i do it. http://up181.siz.co.il/up1/dzmeayx1dnkz.jpg

[16 replies] Last: I don't agree with hacking for use. I will hack a game to see if I can... (by closed account S6k9GNh0)

by WilliamERoberts

Errors with my C++ code

The entirety of my error: scrab101.cpp: In function ‘void drawreplace(char&, char&, char&, char&, char&, std::ifstream&)’: scrab101.cpp:1159: error: no m...

[6 replies] Last: What does that particular line look like now?? (by guestgulkan)

by ljrobison

Using the at() function of string to reverse a string.

Hello all, I have an assignment which reads: Using the at() function, write a C++ program that reads in a string by using getline() and then displays the ...

[8 replies] Last: I know that you have to use the at() function, but in the interest of ... (by jsmith)

by timHe

Addresses of extern variables

Hi, I've just been trying to share some data across files, and there's something I don't understand which I think might be behind some of the problems I'm ha...

[4 replies] Last: To answer my own question: yes. I made a couple of stupid assumptions ... (by timHe)

by btripp

Problem with istream operator

Ok. This isnt the first time ive run into problems with classes ive made before. I have created a school class. Here is the header file. #ifndef SCHOOL_H ...

[9 replies] Last: thanks for the link. (by btripp)

by preetii90

error LNK2019: unresolved external symbol

I was trying to compile my C code when a fatal error came up. the error is: >lab 10.obj : error LNK2019: unresolved external symbol "void __cdecl best(struct...

[1 reply] : You didn't define neither check() nor best(). You only declared them. (by helios)

by spiritlurker

Program falls through to end

Hello everyone. I am getting into the gist of the C++ programming language. =) I have come up with a problem and I've been brainstorming for hours. It has somet...

[1 reply] : I haven't looked at your entire program because thats a lot of code to... (by mcleano)

by bugs

question about _stdcall

I am learing MFC. Here comes a question about _stdcall in MFC RTTI structure. #define PASCAL _stdcall struct CRuntimeClass { ... ... CObject* (...

[2 replies] Last: Thanks! It helps a lot. (by bugs)

by Thade

Object oriented programming

Hi, working on an assignment we got at school. And Im kind of stuck. When i try to compile, I get an error message each time. Tried different solutions to w...

[1 reply] : Your function void komplex::ganger(komplex &B) is declare... (by jsmith)

by hopesfall

checking entry for a valid integer

I have a program that checks two inputs for integer values and it works fine but the code I have now is rather long. If I needed to check for 20 entries, is the...

[1 reply] : // Returns true if the string "checkInteger" can be parsed as an in... (by jsmith)

by jsidbury

largest element in a row and column

Row = 12 largest = matrix ; for (col = 1; col < 2; col ++) If (largest < matrix ) Largest = matrix ; if i wanted to make this a function i would hav...

[1 reply] : What is the precise purpose of the function? A handy shortcut for g... (by PanGalactic)

by ztein

left of '->fullname' must point to... it does

When trying to compile, the following error appears: (34) :error C2679: binary '!=' : no operator found which takes a right-hand operand of type 'char' (or ...

[3 replies] Last: R0mai: Thanks for info. Duoas: Will try it, thanks. Will need ... (by ztein)

by makan007

Cout Result

I would like to display as follows: Circle (4.67, 28.65, 66.75) ---------------------------- How do I cout using.... cout << "Circle: (" << 4.67...

[8 replies] Last: I think you just simply forgot to put std::cin.get(); in your codes.. ... (by nemesiscplusplus)

by shadowvillian

trouble with classes

hi, ive been trying to learn classes but i cant grasp it... what do you guys recommend i learn before attempting to learn classes?

[6 replies] Last: thanks for the reply demosthenes2k8, ill give it a shot. (by shadowvillian)

by LordMigit

while getline problems

Hey folks, im having a problem with the getline function, iv looked through all the other threads about getline and i cant find any that address my problem. So ...

[1 reply] : I don't see you attempting to seek or clear the stream in the code tha... (by kempofighter)

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