Questions tagged as 'c++'

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How can I get information from a folder in cubbler Embarcadero

I have the address of a folder. What code can I use to know the names of the folders and files that are inside that folder of which I have the address. I want to know the names of the files and folders that are in the address that I have, which...
asked by 15.05.2018 / 00:05
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Visual Studio exception when debugging

My problem is that every time I debugged (visual studio 2017-win 7- 32 bits- console system) everything goes normal when debugging and executing the program, but after the program ends I get the following error :    Exception produced in 0x77...
asked by 07.05.2018 / 00:04
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Can a 'Raw String' be replaced by another once printed?

I have three raw strings: string wawe1 = R"( ^ ^ ^ ^ | ^ | | | | ^ | ^ | ^ | | | | | ^ | | | ^...
asked by 06.05.2018 / 01:43
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Qt - Problem when drawing Cartesian coordinate system with QGraphicsItem

I have the following problem. I'm trying to graph the X and Y coordinate system. I use a QGraphicsItem. This graphicsitem has the upper coordinate X and Y ... as I move to the right, the X grows and to the left the X decreases, as is normal in t...
asked by 05.05.2018 / 04:55
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Qt: Problems with QPSQL driver not loaded

This is my code for the main.ccp : #include <QCoreApplication> #include<QtSql> #include<QtDebug> #include<Iostream> #include <QSqlDatabase> #include <QSqlError> #include <QSqlQuery> int main(int argc...
asked by 24.04.2018 / 19:14
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make c ++ reference without defining library ntl

I'm trying to run a small test with the HELib library, download it here Helib Specifically explained here Tutorial I have followed the steps correctly to install the necessary libraries. The problem is given when doing make HEcalc...
asked by 25.04.2018 / 18:22
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Trying to insert pixels into a queue

I have a problem when inserting a pixel in a queue. What I want is to insert the point not what the image has at that point Thanks What I have is this: queue <int> cola; for (int i = imagen.FirstRow()+1; i <=imagen.LastRow()-1; i++...
asked by 21.04.2018 / 18:52
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Print a single node

I have a linked list where each node contains information of a computer equipment ie brand, processor, etc. leaving something like this: Node1: Brand, processor, color. Node2.Marca processor, color. struct nodo{ string marc...
asked by 16.04.2018 / 01:27
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Replace a tree node binary search

I need to make a replace function (tree node, tree_new node) replace tree with tree_new. But the tree structure does not have an element to keep which is its father. The structure is like this: struct ABB { int elem; ABB *left, *r...
asked by 10.04.2018 / 19:57
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API WINDOWS C ++

I would like you to help me in the following peoblema: I have two applications, one is a web application and the other is a desktop application in windows and is programmed in delphi. The situation is that I want to transfer all the data from th...
asked by 14.04.2018 / 00:06