Beginners - C++ Forum - December 2014 (Page 5)

hey!Hello I have a question about fuction that i have trouble with. I need to get 2 numbers. K and num1. For example num1=5 and k=2 the program will print this ...

[1 reply] : anyone please? (by Elads11)

by raminlich

compile in cmd windows

hi all, im using MinGW can anyone tell me the exact step of this? i know there is a lot of good ide but i really want know this manner. thank u.

[7 replies] Last: when i tried to compile using cmd with C::B\mingw there was a blink of... (by anup30)

by deathslice

Error after inputting seven numbers

This error always occur after I input 7 numbers. What could it be? #include <iostream> #include <limits> #include <vector> void checkingInput(int &); void d...

[5 replies] Last: Alright, fixed it with vectors. Hurrah for vectors. (by deathslice)

by golarmMZ

Trouble with random number generation

I'm trying to make the range smaller when the computer is guessing a number. I got the higher end, but I don't know how to make the lower end range higher whe...

[1 reply] : You use a constant on line 6 to indicate the lowest number in the rang... (by cire)

by loopdydoo

Need help with random number generation

I need help writing a bit of code that makes something have a 5% chance of happening, and then if it doesn't happen, it needs to have a boolean variable equival...

[3 replies] Last: For percentages I usually generate a floating point number between 0-1... (by Disch)

by pacman169

Program to solve quadratic expression

Help I need with this #include<iostream> #include<cmath> #include<math.h> using namespace std; int main() { double a, b, c, x1, x2, determ...

[4 replies] Last: Please observe: http://www.parashift.com/c++-faq/floating-point-arith.... (by keskiverto)

by Lee125

void function

Hello guys. can you explain to me? why void function cannot be placed after main function? #include <iostream> using namespace std; const int WIDT...

[5 replies] Last: why the function prototype look like different as usuall. Can I know... (by AbstractionAnon)

by xxgixxx

comment ne pas réecrire tout le code pour un autre level?

salut, j ai besoin d 'aide urgent svp. j ai passé toute la nuit a chercher la solution mais je trouve rien. ce code est un level d 'un jeu. quand j 'ai essa...

[1 reply] : hi, I have need of emergency help please. I spent all night searchi... (by AbstractionAnon)

by xxgixxx

can someone explain this line for me ? :0

explain the line underlined plz ?:0 std::ifstream fin; fin.open("itemstore.dat",ios::binary); fin.read((char*)&amt,sizeof(amt));

[1 reply] : Did you check the reference page? http://www.cplusplus.com/reference/... (by AbstractionAnon)

by Lee125

void function versus value return function

What happens if the return statement is commented out? Nothing happens when i removed the return statement in void findNumber function. Can anyone expalin to ...

[2 replies] Last: Thank you Peter87. I understood now. (by Lee125)

by fx11

strstr

I'm reading a book about C. Here is an example program. Why doesn't strstr() find the "town" inside the tracks array? #include <stdio.h> #include <str...

[4 replies] Last: Thanks. Removed '\n', more precisely replaced '\n' to '\0', it work... (by fx11)

by Lee125

unknown file.

What the best program for open this file. i didnt know how the file can read. the type of file is O File (.o)

[1 reply] : Object files are produced by the compiler when a source file is compil... (by Peter87)

by Hashirama senju

Help with doxygen.

Hello. I am trying to use this C++ reference archive(http://en.cppreference.com/w/Cppreference:Archives) with doxygen. The information under "Doxygen tag file" ...

[1 reply] : Can someone help me please (by Hashirama senju)

by shadowCODE

Parse XML in C++

I want to parse an XML file to a text file containing a table of the XML data using Qt or any other library in C/C++. I have seen many examples and tutorials b...

[2 replies] Last: Thanks. I but "luck" is not enough to go through xmlLite. Think ill sp... (by shadowCODE)

by closed account 375jz8AR

Help with creation of functions

hi i created this programm, but now i need to divide it by functions, one for creation of points, an other for center of mass, an other for rotation and an othe...

[no replies]

by rwhoech

DrawText() does not work properly in Release build

Title: Release version of a 32-bit Win app fails to render text properly Background: I am running 64-bit Win 7 OS. I have been developing Win apps in MS 2...

[no replies]

by deathslice

Not saving input and updating. (1,2,3)

I'm pretty sure the problem is because I'm not referencing the input once the function terminates. I'm testing player1 input and whenever player1 inputs X or O ...

[44 replies] Last: I was thinking of something like this. pseudocode for (int i = 0; ... (by deathslice)

by phztfte1

Problems with Object String Length

Write your question here. Why in some cases len is calculated using 1. len = strlen(str) + 1; 2. len = strlen(obj.p) + 1; 3. len = obj.len; 4. ...

[4 replies] Last: Similarly, for the Copy constructor, len should also be obj.len; and ... (by MiiNiPaa)

by igoreshka3333

Streams & files

Hey there! The program below are supposed to take as an argument a few files and place them in a vector. Then creates the file and writes the text of incoming f...

[6 replies] Last: Thank u! (by igoreshka3333)

by closed account 375jz8AR

Generate by random a set of n points in 2D Cartesian Coordinates System

I have a problem with this code, when i try to run it the result is a lot of 0.00000. I need to generate random set of 2d points. I am new, so maybe what i wrot...

[9 replies] Last: Thank you very much guys, you are great!! (by closed account 375jz8AR)

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Beginners - December 2014 (Page 5)