Salut a tous,

Depuis un petit moment je tente de faire une calculatrice GUI en C++ avec Qt et je n'y parvient pas.
Je ne comprend d'où peut provenir mon erreur car mon code C++ compile très bien mais c'est quand je fais des calcul que sa ne fonctionne plus
Sans plus attendre voici mon code :

main.cpp
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#include <iostream>
#include <QtGui>
#include <QApplication>
#include "fenetreMain.h"
 
int main(int argc, char* argv[])
{
 
 QApplication app(argc, argv);
 
 QTranslator translator;
 translator.load("calculatrice_en");
 app.installTranslator(&translator);
 
 
 fenetreMain fenetre;
 fenetre.show();
 
 return app.exec();
}
fenetreMain.h
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#ifndef FENETREMAIN_H_INCLUDED
#define FENETREMAIN_H_INCLUDED
#include <QtGui>
#include <iostream>
 
class fenetreMain : public QWidget
{
 Q_OBJECT
 
 public:
 fenetreMain();
 
 private slots:
 void slot1();
 void slot2();
 void slot3();
 void slot4();
 void slot5();
 void slot6();
 void slot7();
 void slot8();
 void slot9();
 void slot0();
 void slotm();
 void slota();
 void slotso();
 void slotd();
 void slote();
 
 private:
 QPushButton *boutonmul;
 QPushButton *boutonadi;
 QPushButton *boutondiv;
 QPushButton *boutonsou;
 QPushButton *bouton1;
 QPushButton *bouton2;
 QPushButton *bouton3;
 QPushButton *bouton4;
 QPushButton *bouton5;
 QPushButton *bouton6;
 QPushButton *bouton7;
 QPushButton *bouton8;
 QPushButton *bouton9;
 QPushButton *bouton0;
 QPushButton *boutonres;
 QPushButton *exit;
 QLineEdit *resultat;
 QString text;
 long bol;
 double cal;
 double cal2;
 double calr;
 bool ok;
 long impl;
 
};
 
#endif
fenetreMain.cpp
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#include <QtGui>
#include <iostream>
#include "fenetreMain.h"
 
fenetreMain::fenetreMain()
{
 
boutonmul = new QPushButton("X");
boutonadi = new QPushButton("+");
boutonsou = new QPushButton("-");
boutondiv = new QPushButton("/");
bouton1 = new QPushButton("1");
bouton2 = new QPushButton("2");
bouton3 = new QPushButton("3");
bouton4 = new QPushButton("4");
bouton5 = new QPushButton("5");
bouton6 = new QPushButton("6");
bouton7 = new QPushButton("7");
bouton8 = new QPushButton("8");
bouton9 = new QPushButton("9");
bouton0 = new QPushButton("0");
exit = new QPushButton(tr("Quitter", "Utilisé pour le bouton de fermeture"));
boutonres = new QPushButton("=");
resultat = new QLineEdit();
QString text = "";
ok = 1;
bol = 0;
cal = 0;
cal2 = 0;
impl = 0;
calr = 0;
 
QLabel *label = new QLabel(tr("resultat:", ""));
resultat->setText("0");
resultat->setReadOnly(true);
QGridLayout *layout = new QGridLayout;
 
layout->addWidget(label, 1, 0);
layout->addWidget(resultat, 1, 1, 1, 3);
layout->addWidget(boutonadi, 2, 3);
layout->addWidget(boutonsou, 3, 3);
layout->addWidget(boutondiv, 4, 3);
layout->addWidget(boutonmul, 5, 3);
layout->addWidget(bouton1, 2, 0);
layout->addWidget(bouton2, 2, 1);
layout->addWidget(bouton3, 2, 2);
layout->addWidget(bouton4, 3, 0);
layout->addWidget(bouton5, 3, 1);
layout->addWidget(bouton6, 3, 2);
layout->addWidget(bouton7, 4, 0);
layout->addWidget(bouton8, 4, 1);
layout->addWidget(bouton9, 4, 2);
layout->addWidget(bouton0, 5, 0 );
layout->addWidget(boutonres, 5, 1);
layout->addWidget(exit, 5, 2);
 
setLayout(layout);
 
QObject::connect(exit, SIGNAL(clicked()), qApp, SLOT(quit()));
QObject::connect(bouton1, SIGNAL(clicked()), this, SLOT(slot1()));
QObject::connect(bouton2, SIGNAL(clicked()), this, SLOT(slot2()));
QObject::connect(bouton3, SIGNAL(clicked()), this, SLOT(slot3()));
QObject::connect(bouton4, SIGNAL(clicked()), this, SLOT(slot4()));
QObject::connect(bouton5, SIGNAL(clicked()), this, SLOT(slot5()));
QObject::connect(bouton6, SIGNAL(clicked()), this, SLOT(slot6()));
QObject::connect(bouton7, SIGNAL(clicked()), this, SLOT(slot7()));
QObject::connect(bouton8, SIGNAL(clicked()), this, SLOT(slot8()));
QObject::connect(bouton9, SIGNAL(clicked()), this, SLOT(slot9()));
QObject::connect(bouton0, SIGNAL(clicked()), this, SLOT(slot0()));
QObject::connect(boutonadi, SIGNAL(clicked()), this, SLOT(slota()));
QObject::connect(boutonsou, SIGNAL(clicked()), this, SLOT(slotso()));
QObject::connect(boutondiv, SIGNAL(clicked()), this, SLOT(slotd()));
QObject::connect(boutonmul, SIGNAL(clicked()), this, SLOT(slotm()));
QObject::connect(boutonres, SIGNAL(clicked()), this, SLOT(slote()));
 
 
setWindowTitle(tr("Calculatrice", ""));
setWindowIcon(QIcon("calc.ico"));
}
 
void fenetreMain::slot1()
 {
 
 text += "1";
 resultat->setText(text);
 
 }
 
void fenetreMain::slot2()
 {
 
 text += "2";
 resultat->setText(text);
 
 }
 
void fenetreMain::slot3()
 {
 
 text += "3";
 resultat->setText(text);
 
 }
 
void fenetreMain::slot4()
 {
 
 text += "4";
 resultat->setText(text);
 
 }
 
void fenetreMain::slot5()
 {
 
 text += "5";
 resultat->setText(text);
 
 }
 
void fenetreMain::slot6()
 {
 
 text += "6";
 resultat->setText(text);
 
 }
 
void fenetreMain::slot7()
 {
 
 text += "7";
 resultat->setText(text);
 
 }
 
void fenetreMain::slot8()
 {
 
 text += "8";
 resultat->setText(text);
 
 }
 
void fenetreMain::slot9()
 {
 
 text += "9";
 resultat->setText(text);
 
 }
 
void fenetreMain::slot0()
 {
 
 text += "0";
 resultat->setText(text);
 
 }
 
void fenetreMain::slota()
 {
 resultat->setText("+");
 bol = 1;
 
 if (impl == 0)
 {
 cal = QString(text).toDouble(&ok);
 text = "";
 impl++;
 }
 
 if (impl == 1)
 {
 cal2 = QString(text).toDouble(&ok);
 text = "";
 impl++;
 }
 
 }
 
void fenetreMain::slotso()
 {
 resultat->setText("-");
 bol = 2;
 
 if (impl == 0)
 {
 cal = QString(text).toDouble(&ok);
 text = "";
 impl++;
 }
 
 if (impl == 1)
 {
 cal2 = QString(text).toDouble(&ok);
 text = "";
 impl++;
 }
 
 }
 
void fenetreMain::slotm()
 {
 resultat->setText("X");
 bol = 3;
 
 if (impl == 0)
 {
 cal = QString(text).toDouble(&ok);
 text = "";
 impl++;
 }
 
 if (impl == 1)
 {
 cal2 = QString(text).toDouble(&ok);
 text = "";
 impl++;
 }
 
 }
 
void fenetreMain::slotd()
 {
 resultat->setText("/");
 bol = 4;
 
 if (impl == 0)
 {
 cal = QString(text).toDouble(&ok);
 text = "";
 impl++;
 }
 
 if (impl == 1)
 {
 cal2 = QString(text).toDouble(&ok);
 text = "";
 impl++;
 }
 
 }
 
void fenetreMain::slote()
 {
 resultat->setText("/");
 
 if (bol == 1)
 {
 calr = cal + cal2;
 text = QString::number(calr);
 resultat->setText(text);
 text = "";
 }
 
 if (bol == 2)
 {
 calr = cal - cal2;
 text = QString::number(calr);
 resultat->setText(text);
 text = "";
 }
 
 if (bol == 3)
 {
 calr = cal * cal2;
 text = QString::number(calr);
 resultat->setText(text);
 text = "";
 }
 
 if (bol == 4)
 {
 calr = cal / cal2;
 text = QString::number(calr);
 resultat->setText(text);
 text = "";
 }
 }
Pour un petit aperçut de son interface :


Merci d'avance pour votre aide.

Cordialement jyz93,