please wait
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by david73
Initializing two-dimensional vector of type Class
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| Hello, I have one question. When I was using int as type of my vector I initialized it the way you can see below. But now, I want to create vector of type Valu... |
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Jun 30, 2017 at 6:53pm
[1 reply] : # include <iostream> # include <vector> # include <iomanip> class V... (by gunnerfunner)
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by Meden
Where is my mistake? Project Euler Problem 9 - algebra, <complex>, or something else?
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| From: https://projecteuler.net/problem=9 "A Pythagorean triplet is a set of three natural numbers, a < b < c, for which, a^2 + b^2 = c^2. There exists exactly... |
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Jun 30, 2017 at 6:35pm
[5 replies] Last: I should make a, b, c ints, or you may hit floating-point round-off er... (by lastchance)
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by ebii
interhance
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| hey guys iam a bit stuck with some program that i try to solve #pragma once #include<iostream> using namespace std; #include<iostream> #pragma once templat... |
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Jun 30, 2017 at 6:01pm
[3 replies] Last: You probably want runtime polymorphism : #include<iostream> #include... (by keskiverto)
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by masterinex
weird for loop
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| Could someone explain to me how this for loop work ? i just don't understand the 2 extra conditions: beg = authors.lower_bound(search_item), end = authors.u... |
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Jun 30, 2017 at 5:38pm
[1 reply] : Those are not conditions; they are just assignments. The condition is ... (by Zhuge)
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by lifeisgood
continue statement
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| Quick question: assume that I have the following structure, will the "continue" command successfully lead me to the next iteration in the outermost for loop? ... |
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Jun 30, 2017 at 3:30pm
[7 replies] Last: @mbozzi: thank you for referring me to this article! As I am not a nat... (by lifeisgood)
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by MoreUmph
Problem Linking Headers and Source File
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| Hello, im new to c++ and am trying to link a header and source file to my main source file. Its simple and ive looked at videos everywhere and read alot forum ... |
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Jun 30, 2017 at 1:47pm
[14 replies] Last: > undefined reference to `WinMain' chose `Console Project' (by ne555)
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by masterinex
how to iterate through char array
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| i have associated a pointer to a char array. I would like to print each element of the char array using the dereference pointer notation. for some reason it wou... |
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Jul 1, 2017 at 10:11am
[11 replies] Last: asd (by masterinex)
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by primem0ver
Where is the lib definition defined in a project?
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| Although I am not new to C++, linking has always been a bit confusing for me... so I suppose this may be a beginner question... ?? If I am using a dll and link... |
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Jun 30, 2017 at 11:31am
[1 reply] : Where is the STGPLUGINCLASSES_LIB symbol typically defined? Usually ... (by coder777)
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| Can I code this better? |
| Few questions here, I thought I could use Nested else if statements here but I'm trying to go exactly what the program tells me to do. I may of over-complicated... |
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Jun 30, 2017 at 12:02am
[1 reply] : struct substance{ double fusion_temp, ebullition_temp; std::string ... (by ne555)
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by masterinex
how to declare a reference to a pointer
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| i would like to create a function which takes in a reference to a pointer.for some reason when i build this, I keep getting cout and endl undeclared identifier.... |
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Jun 29, 2017 at 11:26pm
[1 reply] : The error you encountered is due to using namespace std; coming afte... (by lazpeng)
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by Caruso
2d array
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| Hi All, This is from a problem published on heakerearth.com We need to create a 2 dimensional array and fill it. for the creating of the array I've used: ... |
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Jun 29, 2017 at 7:47pm
[1 reply] : this is all weird. if you want 10 columns, n = 10. you get to it fro... (by jonnin)
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| what are the benefits of using Copy initialization form ? |
| i know that when we use the copy form (=) the compiler will pass the right-hand operand to the copy-constructor of that class. in addition, the compiler ca... |
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Jun 29, 2017 at 12:50pm
[5 replies] Last: thanks keskiverto , gunnerfunner for replying. i just wanted to know i... (by AhmedEl3agamy)
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| Reading hexadecimal from file and converting to integers |
| So my assignment is to read an unknown amount of hexadecimal numbers from a file into a char array, create a function to convert it to regular numbers, and then... |
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Jun 29, 2017 at 12:38pm
[9 replies] Last: The conversion and subsequent addition to a sum is where I'm having m... (by dhayden)
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by masterinex
how to check if a command line argument ends with .txt
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| I am trying to write a program which checks if one of the command line argument entered ends with .txt . If one of the arguments ends with .txt, then an input ... |
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Jun 29, 2017 at 12:18pm
[7 replies] Last: The code will check for ".txt" in any command line argument, so long a... (by dhayden)
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by Stauricus
i/o vector of strings to text file
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| hello i'm trying to write and read a vector of strings to/from a text file. it should count how many lines contain the word "here". but it does nothing. ... |
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Jun 29, 2017 at 11:00am
[5 replies] Last: oh, now i see why the text file wasn't human readable. thanks everybod... (by Stauricus)
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by waschbaer
How could I test whether the input parameter is uninitialized (1,2)
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| I have 4 arguments are integers, and for consistent reason, I want to test the input argument is initialized with a number. How could I do this? UPDATE: Thank... |
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Jun 29, 2017 at 10:44am
[20 replies] Last: @JLBorges What is your problem? If the functionality of optional mee... (by coder777)
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by David5956
How do I merge text files in different sub-folders with path in it?
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| as tile~ so far, I did output a dir.txt that listed all the targets with this CMD code: D:\>dir /s /b Parent\*.txt >D:\dir.txt inside dir.txt: D:\... |
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Jun 29, 2017 at 5:11am
[1 reply] : std::filesystem::recursive_directory_iterator (C++17) http://en.cppref... (by JLBorges)
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by Flaze07
syntax question
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| hey, so there's 2 ways to declare a variable of class first : mystring ex("lol"); second : mystring ex{"lol"}; which one is better ? |
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Jun 29, 2017 at 4:22am
[3 replies] Last: One thing to keep in mind is that they are not always equivalent: The ... (by mbozzi)
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by david73
Moving in two dimensional vector
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| Hello, I'm having one problem. Imagine you are having two dimensional vector in which you want move generated number and you will get this: 0 0 0 0 0 2... |
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Jun 28, 2017 at 6:13pm
[9 replies] Last: Just in case someone would struggle with the similar problem in the fu... (by david73)
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by ebii
handling with files
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| hey guys how i read from files only int/or some char data let say i have list of student name + grade in file like name1 80 name2 90 and i want to take fro... |
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Jun 28, 2017 at 6:12pm
[5 replies] Last: thanks alot thomas . (by ebii)
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