General C++ Programming - C++ Forum - December 2019 (Page 7)

Stacks (1,2)

#ifndef DYNINTSTACK_H #define DYNINTSTACK_H template <class T> class DynIntStack { private: // Structure for stack nodes struct StackNode { T value...

[29 replies] Last: The 'reverse' means that it will be bottom -> top (by CodingIsHard17)

by marhuum

Mechanism in a function argument alias for any type

How to do mechanism for a function argument alias for any type, as such in pointer to void argument is for any type ?

[1 reply] : Use function templates, unless you have a really good reason not to. ... (by Ganado)

by yucecoder

Reading line by line

I know how to read a .txt file line by line using ifstream, but I need a specific action this time. Let's this be my input file: 1 2 1 2 3 4 5 1 2 3 4 5 1 2 3...

[5 replies] Last: #include <iostream> #include <fstream> #include <sstream> #include <v... (by lastchance)

by volang

Handle TCP protocol on your own

Is it possible to somehow dive deeper, and handle the initial TCP handshake(SYN/ACK) on your own? At the moment winsock is doing this for me.

[9 replies] Last: If you want to watch the wire. One of these (or the pre-assembled one... (by salem c)

by marhuum

Determining argument is given or omitted by compiler

how to determine / check whether argument is given or omitted in compile time? bool a_function(char* b, size_t len=0) { // no run time check such as if ...

[1 reply] : The parameter is not 'omitted' in that sense that the function can det... (by coder777)

by yoanamd

Rotate Left and Right

May someone please help me with this code. The task is really simple i guess. The call rotateRight function must move all the elements in the array with one po...

[6 replies] Last: The inputs are number arrays and char arrays, you have to use templat... (by againtry)

by Mgramlin

Read from a text file and then write into a binary file

CAN NOT USE VECTORS In this program I have to read a text file and write into a binary file. when writing into the binary file, the number of Persons should ...

[7 replies] Last: Change line 68 cin.ignore(); to inFile.ignore(100... (by lastchance)

by Dee5

Division by zero problem

Hello guys..I'm working on a program which determine if numbers divided have remainders or not. If they have remainders it prints out "Arcanum!" If they don't ...

[2 replies] Last: Thanks (by Dee5)

by o1m2e3r4

there is a questions about c++.

int main(int argc, char** argv) { int cart1,cart2,cart3,cart4,cartotal,x; string players ; { srand(time(NULL)); string lpayers = { "A player"...

[2 replies] Last: for example; start program. Then choose "A player". I give card1 and c... (by o1m2e3r4)

by Dee5

Finding the hidden numbers (1,2)

Hello guys,I'm kinda new in c++ and Im having a little problem. I'm trying to make a program which will count the occurrence of numbers less than 1000 in a list...

[25 replies] Last: Sorry again, so what if I want the user to input the number of items h... (by Dee5)

by PistolPete10

Student Binary Files

#include<iostream> #include<fstream> #include<cstdio> using namespace std; class Student { int admno; char name ; public: void setData...

[6 replies] Last: If you use an object in Student, say std::string instead of char arra... (by kbw)

by marhuum

Why error: ambiguating new declaration of 'std::string& strs(std::string&, const char*)'

Got this error: ambiguating new declaration of 'std::string& strs(std::string&, const char*)' though the declaration is bit different in types prototype, ie. o...

[1 reply] : > ie. only in returned value type the return type is not part of the s... (by ne555)

by jebek9

game sorry

#include <iostream> #include <cmath> #include <cstdlib> #include <time.h> using namespace std; int randomNumber() { srand (time(NULL)); return rand...

[1 reply] : bool win = false; int winner; while (!win) { for (i... (by Repeater)

by mlanuri10

How to fix these error for radio sort algorithm?

There are two errors on this header file: Line 22: expression did not evaluate to a constant. Line 33: array type int is not assignable. radixSort.h ...

[9 replies] Last: I am not going to rewrite your whole program for you 3 times over. yo... (by jonnin)

by volang

Load/edit/update functions from dll.

I want to export a function, from a .dll file in to my C++ program. I read that I have to load the entire file/library in to memory, then I can retreive the add...

[7 replies] Last: So if I unload the library, the address to the function that i've got... (by helios)

by calvinfornia

Greedy algorithm

Hi! Here's a problem about greedy algorithm. The statement is below : Suppose we have a set S = {a1, a2,...,an} of n proposed activities that wish to use a re...

[1 reply] : yes, you can do it that way. it just changes the solution accordingly.... (by jonnin)

by exro

Converting an integer in an array to an integer

Hi, so I am trying to create a program where I can give it arguments from a batch file, which contains an x and y coordinates that will change the console curso...

[4 replies] Last: At risk of sounding like a broken record - this is why you should alwa... (by MikeyBoy)

by julie2019

The C++ ABI

Rob and Jason are joined by Titus Winters from Google. They first discuss some news of C++ tools, including Sourcetrail going open source and C++ Build Insights...

[no replies]

by doug4

Typedefs in Derived Classes

I am working on a code generation tool with which I can generate Data classes and associated Manipulator classes specific to each Data class. As part of the ge...

[4 replies] Last: @JRBorges, Thank-you. I think I understand now. Nice explanation. (by doug4)

by Dee5

Counting next numbers

Guys I need help...this code only counts the first input from the user and leaves the other following number. Can you help me to make it read and count the nex...

[1 reply] : This seems related to / doublepost of: http://www.cplusplus.com/forum/... (by keskiverto)

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General C++ Programming - December 2019 (Page 7)