Beginners - C++ Forum - July 2020 (Page 8)

by roym

speed of vector filling: Matlab vs C++

Hello, I recently (2 months ago) started learning C++. Before that, I always worked with Matlab (2...

[10 replies] Last: ^^ The actual c++ wrapper is pretty small -- its going to be 99% libr... (by jonnin)

by zavkk

I want to make a program with a time to respond

I want to make a program where the console gives me numbers and i have to multiply they in the time ...

[1 reply] : this is tricky in console. you can time it with clock() if the time ... (by jonnin)

by MaxGreen

for,if,even,max,min

hey lads, Hope you can help me, I have to do my HW as below: Solve a+b-c for "n" times, follo...

[11 replies] Last: @dhayden thank you very much indeed sir! (by MaxGreen)

by yem

Derived classes using "parent's" nested class

Hey, I've had this problem before with linked list and never really managed to solve it. I have a ...

[2 replies] Last: Thanks! (by yem)

by lampahome

memory allocation different when lookup in system monitor

I write a c program to allocate specific size of memory and free them in Ubuntu. Defaultly, it cr...

[1 reply] : https://duckduckgo.com/?q=linux+overcommit+memory&atb=v203-1&ia=web Li... (by salem c)

by StevenDorsey

Subnetting Program -- [variable] was not declared in this scope"

I"m writing a subnetting program, and I'm having an issue with scope and inheritance. Basically, I'v...

[6 replies] Last: Notes: IPv4 address is a 32-bit unsigned integer. One number. The dot-... (by keskiverto)

by Fayezilla

Arrays

How would I write an array that uses a constant measurement, increments over 50 components, but then...

[12 replies] Last: Handy Andy, thank you for keeping up with my question and working thro... (by Fayezilla)

by pnwadike99

sorting upper and lowercase names together

I don't understand these errors send the name to check dupe function could not convert '(std:...

[10 replies] Last: THANK YOU, im reviewing rn (by pnwadike99)

by Shervan360

Constructor and Destructor in C++

Hello, Why is the destructor called 4 times? We create two objects, but we destroy it four times. t...

[2 replies] Last: Line 27, an object is default constructed in main. Line 17, a copy of... (by deleted account xyzzy)

by greenway

Problems parsing/using void functions

In my program, we are supposed to uses classes and void functions to create a program that gives the...

[4 replies] Last: Gotcha, sorry about that. (by greenway)

by rozick1

does the target of a makefile have to be a file name?

Hi I have a makefile which includes the following rule/recipe bin/test.exe: $(TEST_OBJ_FILE...

[2 replies] Last: tests: bin/test.exe bin/test.exe: $(TEST_OBJ_FILES) $(LIB_DIR)/$(LIB... (by dhayden)

by ZunLee

I need help with creating a function!

Hey guys, I have written some code that I'd like to create as a function but I'm not getting any suc...

[5 replies] Last: Hello ZunLee, Some additions I made that may help. Above your "Major... (by Handy Andy)

by ndcn541

Can't assign a char to a string

I have a conversion error when I do this, what is happening? string b = "abc"; string a = ...

[4 replies] Last: Dutch , I thought the same thing. It seems so obvious that there mus... (by dhayden)

by rozick1

should I take out high level methods from a class?

Hi I have a class like this: class Something{ private: // data structures and internal...

[3 replies] Last: // high level analysis methods , some of which use internal methods... (by dhayden)

by pnwadike99

closes program after first set of instructions

it ends after outputting the names after first import string usersFile; //stores users fil...

[3 replies] Last: Hello pnwadike99, Although Thomas1965 makes a good question it is a... (by Handy Andy)

by QatarAirways

Change Playdirection

Hi, For my project I wanna change the playdirection. So for example: Im playing with 3 players (Jos...

[2 replies] Last: Thanks! (by QatarAirways)

by pnwadike99

no matching function for call to 'getline??

no matching function for call to 'getline(std::ifstream&, std::string )' 55 | getline(fin, ...

[3 replies] Last: thank you (by pnwadike99)

by lawoman68

Output issue reading in 2 files

Hello! I am reading 2 files into a program, a client list and transaction file. When the Client ID...

[13 replies] Last: It's not about copying this but this might be useful. There's a probl... (by againtry)

by DonnaPin

integer literals - compatible data types

Hello, I am reading a beginners guide and it says "By default, the c++ compiler fits an integer lite...

[5 replies] Last: float is commonly used in computer graphics because they are faster ... (by mbozzi)

by jamesfarrow

Doubly linked list

I have been asked to have a go at 'modifying' a linked list into a doubly linked list. I have had a ...

[12 replies] Last: Thanks for all the help. I finally realised that I disappeared down a ... (by jamesfarrow)

Beginners - July 2020 (Page 8)

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