C++

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Beginners - June 2017 (Page 4)

by H00G0
Access Violation when running compiled program.
 
Hello, (Being fairly new at C++) I'm having an issue with a program I'm writing. It has successfully been compiled and ran fine yesterday. However when I op...
[7 replies] Last: Thank you coder 777! (by H00G0)
by Dmtg93
Need help asap with programming homework with random number guessing game and math tutor program.. (1,2)
 
Hi there I have 2 programs I need help with for my class. One is a random number guessing game with a range between 1 and 100 with the range changing each time ...
[32 replies] Last: Correct me if i an wrong Okay, consider yourself corrected. The s... (by jlb)
by sharbu
Sum of positive integers - Prints Garbage value
 
The program must accept N integers and print the sum S of all POSITIVE integers with the even positive integers reversed. Example Input/Output 1: Input: 4 39 ...
[2 replies] Last: You don't reinitialise rev to 0 for each new positive even number. You... (by lastchance)
by khanhhoa
Calculator shut down
 
I am new to c++. I made a calculator and i "build and run" it and it worked perfectly. then I tried to run the program that was created by the compiler and when...
[3 replies] Last: The problem is when you ask the user for a number, s/he must insert a ... (by Enoizat)
by kaleemkhattak
adding two arrays using dynamic memory allocation
 
What's the problem with my code ... i am getting same value of sum in the loop. assumed m and n are equal i know theres logical error but assume they are same...
[4 replies] Last: because i am practicing pointers.... (by kaleemkhattak)
by Anthony96
code abut session and time
 
need a dev c++ program does analyze an archive with the time of use from a platform of web. the archive have just 2 columns,first one identifier the user and th...
[2 replies] Last: There are a number of problems with the above code. The warning about ... (by Chervil)
by curiousengineer
How to distribute code in multiple .cpp files for readability
 
I have a .h file with many different functions related to the same function in the program. There are constants and constant arrays, they do go in .h file or in...
[2 replies] Last: You don't mention anything about classes. As jonin mentioned, the u... (by AbstractionAnon)
by CosminPerRam
no match for operator << fstream
 
Hello fellas, i have this short commands what take 2 numbers from a file separated by a space (" "), and i get this error error: no match for 'operator<<' (ope...
[2 replies] Last: I figured out the problem, i was using ofstream instead of ifstream... (by CosminPerRam)
by Meezy111
HW problem, don't know how to proceed
 
I'm doing this for HW and I don't really know what to do now, there is also a menu function and a file input function. Can someone help me? Linda is starti...
[2 replies] Last: a file input function I there a set of data you are expected to use?... (by Enoizat)
by closed account N0M9z8AR
How to calculate sum of each row in 2d array
 
How can I calculate the sum of each row in an array and put it in a vector? For example x1 2 4 4 6 7 Sumx1=?? x2 1 2 3 4 5 etc x3 1 ...
[2 replies] Last: # include <iostream> # include <vector> # include <algorithm> # inclu... (by gunnerfunner)
by Nakruf
illegal member initialization
 
Error C2614 'Ares::ObjectManagement::Entity': illegal member initialization: 'm_manager' is not a base or member class Entity { private: Man...
[5 replies] Last: Where it is supported, #pragma once usually prevents the same file f... (by mbozzi)
by rush2112
Problem with 'system' function
 
I'm nearly a beginner when it comes to C++, so excuse me for any omissions or silly questions! Here goes.... Is there a limit to the size of the string you sen...
[2 replies] Last: I will do that right away! Forgot about that stupid thing. Thanks! (by rush2112)
by Xzysiek
How to run commands on cmd prompt
 
All I need is to open cmd prompt as administrator and pass few commands to there. I already have: system("powershell -Command Start-Process 'C:\\Windows\\S...
[3 replies] Last: Ok, I think it's impossible to do this. I will just open my program as... (by Xzysiek)
by Amirbdz
conditions applied on while statement - Read Data Files
 
Hello everybody, this is my first time posting a question here, so forgive me if it's not in a way it should be. I try to ask my question in simplest and easi...
[4 replies] Last: jlb, I see what you're saying, I fixed it, thank you for help. (by Amirbdz)
by aengland
How do I read a text file and add new line if value is different to value of next row
 
I need a code to read in text files and write a new line between lines where the value of the first column is different to the next. Any guidance on my current ...
[2 replies] Last: @gunnerfunner, I am afraid you are wasting your time. He is getting he... (by Thomas1965)
by Nakruf
can you deleting multple elements in vector in one iteration?
 
Is there a way to delete multiple elements by searching if the return value of a member function equals true. std::vector<std::unique_ptr<Entity>> entet...
[3 replies] Last: i get compile errors no way for anyone to know unless you state what... (by gunnerfunner)
by legendart
easy sorting method
 
I think this is a simple function to sorting something. Is here any advices?? input data type is <int, int>. and input data is stored at source . i want to so...
[5 replies] Last: It would help if you explain how a tree is represented as a std::mult... (by JLBorges)
by Kuluoz
Create CRC-32 in read buffer
 
Hi friendz, I was read one file 50 bytes. the bytes exist in "unsigned char *buffer" varable. Now i want to create CRC-32 for 50 bytes. is it possible? pl...
[1 reply] : http://lmgtfy.com/?q=c%2B%2B+crc32+implementation (by AbstractionAnon)
by Ostrich
Switch in simple calculator
 
I'm having trouble using switch in a simple calculator to use a certain operator based upon an imput and it won't compare. #include <iostream> using ...
[6 replies] Last: @Ostrich, good job man! :) Sorry for my previous comment, just reali... (by Chris Longwood)
by aengland
reading in and sorting a data file line by line
 
I have data files (named filename) with multiple rows of doubles separated by whitespace. I need to read the data file line by line, as attempted through the fu...
[10 replies] Last: oh my holy days, dhayden, that's awesome, and hilarious. I was spendin... (by aengland)
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