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General C++ Programming - October 2016 (Page 17)

I'm having a heck of a time with C++11's <random>. First I tried seeding with random_device and that worked on Mac/Clang and Windows/Visual Studio, but it's bro...

[6 replies] Last: > why not let uniform_distribution be static too? With this call sign... (by JLBorges)

by lFoxiel

Static local variables- C programming

1) Write the definition of a function named averager that receives a double parameter and return-- as a double -- the average value that it has been passed so f...

[5 replies] Last: You actually have 2 problems in the code you pasted. Both are in line... (by doug4)

by Rajkumar MCA

Tricky C Program

#include<stdio.h> int main() { int a,b,c; int count = 1; for (b = c = 10; a = "- FIGURE?, UMKC,XYZHello Folks,\ TFy!QJu ROo ...

[1 reply] : It is relatively easy, just obfuscated. It prints three characters: '... (by coder777)

by tonerognwrizei

ppm file

//i had a problem to the constructor when i try to initialize and call the Image() constructor;

[7 replies] Last: i did it thanks man!!!! now i call the constructor correctly! the prob... (by tonerognwrizei)

by miamidawgs

Loading vector with bit matrices

I have a code segment here that loads zeroes into a vector that represents a bit matrix. When the program runs and tries to write the result in a output file I ...

[14 replies] Last: In your Write() method: [code firstline=8] for( count = 0; count... (by MikeyBoy)

by Stewbond

RTTI Runtime structure data

I'm writing an inter-process shared memory interface and I'd like to share structures with other applications. Allocating the right amount of memory and assi...

[1 reply] : If you don't want to use the same struct on both ends the simpliest wa... (by coder777)

by popa6200

Deallocating a vector of vectors

If I have a vector of vectors with a custom data type (A struct in my case, std::vector< std::vector<MyCustomDataType> >) how would I deallocate this? Thank ...

[1 reply] : std::vector manages memory itself. If you store pointers in there, ... (by JayhawkZombie)

by MisterBren

Need help inputting values with switch statements.

Hello, I'm currently writing a program that determines the cost of a travel based on travel distance, mpg, gas type, and either state (Michigan or Ohio). I am g...

[4 replies] Last: That makes a lot of sense the way you explained it! Thanks so much! (by MisterBren)

by Tomheza

binary numbers

cout << "Ivesk sveikojo skaiciaus dali " << endl; string sveikojiDalis; cin >> sveikojiDalis; cout << "Ivesk trupmenine skaiciaus dali " << endl; stri...

[1 reply] : By writing your code full of text in foreign language, you are making ... (by SakurasouBusters)

by kimbashx08x

Creating a new array at each function call

I'm creating a program where my main calls a function that creates an array by getting user input and then sends back the pointer to the array back to main... ...

[1 reply] : You need to allocate the array on the heap. then return the pointer fr... (by closed account LA48b7Xj)

by imalshaB

Multithreading

I have created a simple text based game where the player can move in a grid(using a 2D array) and the basic map is as below>>> P - Player D - Danger G - Gold ...

[2 replies] Last: Something I can see that looks like a mistake is your canThePlayerMove... (by closed account LA48b7Xj)

by Najah

Missing function header ( old-style formal list?)

Hey , I can't find my error here .. can anyone help ? #include <iostream.h> { cout << "hello!" << endl ; int x ; cin >> x ; return 0; } W...

[2 replies] Last: add int main() before { (by coder777)

by yes123

Structure Error

I am creating a program that displays the name and salary of the two employees however I do not know what is the code for the calculation of the salary in struc...

[6 replies] Last: It was solved. I changed the gets() and puts () to cout and cin and ma... (by yes123)

by theturk1234

3d game engine function

Hi guys, I'm developing a game engine. I need just one more function for it to be functionally operational. I need a function to determine where a line i...

[6 replies] Last: The assumption in the posts above (which isn't necessarily reasonable ... (by mbozzi)

by yahoolee

Please give me a hand ( for SinglyList.cpp ) to use array method to rewrite the insert data of part , thx lot !

main .cpp #include "Node.h" #include "SinglyList.h" #include "MySinglyList.h" #include <iostream> #include <string> using namespace std; int main()...

[no replies]

by djtheillest

Dice Game

Need some help on how to develop a function to search for consecutive identical integers in an array, and to replace those integers with double that integer. ...

[2 replies] Last: Make one pass through the array, keeping track of two positions in the... (by JLBorges)

by McNasty49

Looping calculations and outputting them?

I'm having trouble writing the correct loops for an assignment. I have all the Math and Functions written; I'm just having a hard time understanding how to writ...

[6 replies] Last: How would I write that in the loop that I have already? (by McNasty49)

by Mariexx

Finding the difference between two dates C++

Hi, I'm a student and I was wondering if anybody can help me debug one of my functions. For this program the user is suppose to input two dates in the format mm...

[3 replies] Last: I can't see anything wrong with your ChangeToNumber function. However,... (by filestream)

by yahoolee

How to use array method rewrite the insert data of part , Thx lot !

#include "SinglyList.h" #include "Node.h" #include <string> #include <iostream> using namespace std; SinglyList::SinglyList() { head = NULL; } Si...

[1 reply] : http://www.cplusplus.com/forum/beginner/199513/ (by SakurasouBusters)

by TinyTertle

Is this the proper convention for a vector accessor and modifier?

Due to std::vectors being of unknown size, this is the proper way to optimize, correct? const std::vector<Point>& get_path() const {return path;} void set_pat...

[1 reply] : It is fine. Worth considering: const std::vector<Point>& get_path()... (by JLBorges)

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