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Beginners - November 2018 (Page 7)

Funtion that multiplies every element of array type point

This is code for multiplying all array elements type Point with integer Vector Vector::Multiply_with_m(int m) { Vector v(this->dim); int i; for (i =...

[9 replies] Last: There's are errors: void Vector::Rotiraj_desno(Vector v) { int i;... (by kbw)

by sabagventsadze

help in pair code

#include <iostream> using namespace std; main(){ int n; cin >>n; for(int i=1;n<=100;i++){ for(int k=1;n<=100;k--){ } } return 0; } So i wrote th...

[2 replies] Last: See this thread on the same topic: http://www.cplusplus.com/forum/begi... (by Satan)

by TrelosGatos003

Hello im just wondering how to do this?

I want to make a program that it can solve this a*x+b I just started so I don't know to do it can you please help me?

[8 replies] Last: y is a*x+b, the variable holding the output. MikeyBoy didn't write the... (by Satan)

by masterinex

how to convert char * to char []

how to convert char * to char ? I have some code that receives data , a char *, using the #include <WinSock2.h> receive function. i would like to convert t...

[2 replies] Last: You can copy the string literal into a non-const array, and then use t... (by MikeyBoy)

by Unspoken

Function template, is it possible to constrain what parameters I can pass?

Hello, Often I need to define callable as a parameter for my function. I do it like this: template<typename MyCallback> void DoSomething(MyCallback...

[4 replies] Last: Mr. Borges, you help is invaluable as always. Thank you for your time ... (by Unspoken)

by whitefall

returning a local pointer

I have a question about returning a local pointer, does the folloing code violates the local pointer rule ? I found similar quetion, but the vector doesn't pop ...

[2 replies] Last: Actually I wouldn't return a reference (unless you absolutely have to)... (by coder777)

by KingReno

Header file error / Makefile.win

Good day people. I am new to OOP, so I asked a friend to give me a challenge. He gave me this question: The volume of a cylinder is calculated using the for...

[1 reply] : It's because your compiler doesn't know the path of your Cylinder.h fi... (by nuderobmonkey)

by KingReno

2d Vector help

Good day to you all, I have a the following program to do: Write a program that will have two user defined functions. One function will allow the user to enter...

[7 replies] Last: Looks fine to me. (by kbw)

by WyntrHeart

How do I read this tutorial code line?

I'm having trouble reading one of the code examples from the Classes section of this website's tutorial pdf. My problem is on line 16: // pointer to classes ...

[5 replies] Last: CRectangle rect ; creates a two element array of class CRectangle on... (by closed account E0p9LyTq)

by ryan157

Undefined reference error? Rational class lab

Why does my code give me this error when I try to compile it? "/tmp/cciZVFen.o: In function `main': Lab6rational.cpp:(.text+0x22): undefined reference to `...

[1 reply] : You never defined the functions under the class.. how is the compiler ... (by Satan)

by kcattgirl

HW Help Can't Figure it out

This is a homework assignment for my class, and the professor didn't explain switch and two-way statements very well. Included is what I have so far, so please ...

[16 replies] Last: The sample code did not make much sense to me, I'm not trying to be a ... (by kcattgirl)

by soulworld05

sizeof and how many bytes

Hello, I tried to do some experiment. The result are different and confused. Could anybody explain what and where do each line do. I saw the max number before i...

[3 replies] Last: ohh now I got it, thanks! (by soulworld05)

by mpj91bv

arrays

I have this problem that I am working on that i have to create an array of 10 random numbers and then display it, find the highest value, find the lowest value,...

[1 reply] : Hello mpj91bv, PLEASE ALWAYS USE CODE TAGS (the <> formatting butto... (by Handy Andy)

by TheDomesticUser2

How to get size of a character

Hello. Currently, I am creating a game called Hangman. Whenever the program asks the user to pick a number, if he/she enters a character more than one letter, t...

[1 reply] : if you just need 1 character from the stream you can just throw away t... (by closed account SECMoG1T)

by nickp220

Need help with code

Hello everyone I am in need of assistance for this program that I am writing. When I run the program I receive 8 errors 4 of which are claiming lines 35,37,57, ...

[2 replies] Last: Thank you very much felt like bagging my head against the wall for som... (by nickp220)

by costinelglavan

C++_Templates_No1

#include <cstdlib> #include <iostream> #include <vector> using namespace std; class Complex { double mRe; double mIm; public: Complex(do...

[1 reply] : #include <iostream> class Complex { public: Complex (double re ... (by Enoizat)

by closed account SECMoG1T

too much cpu usage from my thread pool.

so i have written a command line utility program that scans a directory for files ["dat","txt",...] and use regex to find a search string in all searchable file...

[13 replies] Last: @kbw thank you very much for the suggestions, i'll definitely try that... (by closed account SECMoG1T)

by vysero

Unused method arguments

I will get straight to it. Let's say I have the following method deceleration: QString makeVersionString(const CVersionTag* firmwareTag, ...

[4 replies] Last: Is there a common method for documenting an overloaded method? For ins... (by vysero)

by jjordan33

My array sorting isn't working

Hi, Arrays are a really weak area of mine. I have a program that opens text files(the files contain a simple list of words all lowercase in no particular order)...

[1 reply] : C-style arrays decay into pointers when they are passed to functions. ... (by Enoizat)

by truckboy98

Tracing output confused at some points!

i am having some real difficulties in finding out the output in the following code i tried tracing it however i kept getting the wrong output at the second time...

[2 replies] Last: " // to the second (x) shouldnt it only accept (y)? Not sure what you ... (by truckboy98)

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