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General C++ Programming - April 2018 (Page 7)

i got multiple txt files and i am trying to load data from the filed and want to store it in the vector. I am totally confused in it hoe to start it. Any kind o...

[1 reply] : Your question is too vague. (by tpb)

by Andrew012p

I need help for my test

Hello programmers. I'm honestly here for help with these programs. What will their answer be? Thank you for your help. Here are the links: https://pastebi...

[4 replies] Last: I understand. Thank you. It was very simple. (by Andrew012p)

by JN1982

Arrays

Need to answer the ffg questions but battling to find the answers: 1. Given the following array declaration, what is the value stored in the scores element...

[2 replies] Last: thanks for being so frank and helpful at the same time (by JN1982)

by BigfootCpp

Best way to use 'using'

Hello, I would like to know the best way to use the 'using' keyword. I am aware that there are topics (especially on stackoverflow), but unfortunately I stil...

[8 replies] Last: Thank you for your answer and help :) (by BigfootCpp)

by devildogdeveloper

Feeling like I'm missing something here....

So I have an assignment, I want to believe that the pieces are there, but I'm failing to connect some dots. What exactly am I doing wrong here? I'm newish to C+...

[1 reply] : Look at this snippet: case 1: int setWeight(); void initiailize(); v... (by jlb)

by CharlesPhillips

Defining Functions, Passing Values In/Out

All - First, I used to do some very simple C++ coding a few years ago - just picking it back up. Passing values, pointers, etc into and out of functions has ...

[8 replies] Last: So what is the name of the input file supposed to be? Your line 14 see... (by CharlesPhillips)

by adam2016

Networking protocols

Hey guys I was having a discussion with my lecturer earlier about how networking protocols are implemented and he says that they are a set of rules written in a...

[3 replies] Last: thanks guys Hayden I found a copy of his book online http://www.r-5.... (by adam2016)

by aidam

Invert an integer

hi guys i was doing a exercise about invert an integer,but i have to do this using vectors . example 321 will be 123 I did the program, it worked, but when I p...

[2 replies] Last: ok I assume this is meant to remain in C and that you don't want a C++... (by jonnin)

by user42

number exersizes

I am a beginner in c++ and wanted to learn some tips and tricks with working on digits and numbers. for example to get the last digit of a number we do number%1...

[2 replies] Last: there are literally millions of these things. eg x >> 1 is the same ... (by jonnin)

by SteelCity

Read access error thrown when calling destructor

I'm currently writing a linked list project for school and I'm coming across an error when calling the destructor. My destructor looks like this: EmployeeLis...

[3 replies] Last: The destructor is called whenever the object is destroyed . That's t... (by MikeyBoy)

by anon001

Can someone help me break down my assignment

I am having a trouble just breaking down this big assignment. I have code done, want someone to tell me if I am on the right track Here is my assignment: 1. Cre...

[6 replies] Last: thank you @Thomas1965 (by anon001)

by gouthamgumm

how to solve linker error while using FFTW library?

I want to make use of FFTW library for calculating FFT of a sequence. But when I try to compile it, I get 'undefined reference to' error. My project is located ...

[1 reply] : You need to make sure your linker knows where to find the library. (by MikeyBoy)

by sharfooth2323

I need help with my autoclicker.

Alright, before you say just use mouse_event, just hear me out, please. I am making an autoclicker that only clicks when you hold left click down. I tried this ...

[1 reply] : Wow I just looked up the code for a tool called FastClicker, and it ma... (by poteto)

by elohssa

What's the rule on static template member initialization?

Are compilers allowed to optimize these out if they are not referenced? Seems different to normal static members, which alsays initialize. https://wandbox.o...

[1 reply] : > Are compilers allowed to optimize these out if they are not referenc... (by JLBorges)

by Helquin

LNK 2019 && Lnk1120

I have been looking around on the forums, and most people say this is called when a function does not have a body but I have checked and all have a body. I am n...

[11 replies] Last: In case anyone ever stumbles upon this. I had it for a win32 project a... (by Helquin)

by AdamWazer1998

Reverse engineering code

Hi there, I am currently doing an assignment where I have to write a code to decrypt a text file that is given to me. I am just stuck on how to reverse engineer...

[8 replies] Last: I had the srand() inside a while loop therefore it was giving me rando... (by AdamWazer1998)

by d1g1talarts

hash table collision/insertion

I think i have the openAddress method working, but i am unsure of how to continue with the chaining one. I can't figure out how to access the members of the poi...

[no replies]

by helios

How to RAIIfy this common pattern? (1,2)

//Foo foo; //Bar bar; //Baz baz; { auto old = foo.get_snafu(); foo.set_snafu(x); //... foo.set_snafu(old); } { auto old = bar.g...

[23 replies] Last: @helios, you're not wrong, but the way you replied on page 1 could be ... (by Ganado)

by d1g1talarts

What is a collision in a hashmap?

There are two inputs an inputHash and text which would indicate a collision?

[1 reply] : A collision in a hashmap is when two objects hash to the same value. ... (by Ganado)

by JUAN DENT

How to serialize a time_point?

Having this code: namespace date { using days = std::chrono::duration<int, std::ratio_multiply<std::ratio<24>, std::chrono::hours::period>>; ...

[5 replies] Last: I think I got it: date::sys_days int_to_sysdays(int val) { std::ch... (by JUAN DENT)

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