GtkEntry, erreur de segmentation

**Gamall** · 24/10/2009, 16h16

Bonjour,
J'ai un petit probleme avec ma calculatrice, dont voici le code source:

Code :

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#include <stdlib.h>
#include <gtk/gtk.h>
#include <unistd.h>
#include <errno.h>
#include <sys/wait.h>
#include <string.h>
 
typedef struct _MainWindow
{
  GtkWidget *pWindow;
  GtkWidget *pEntry;
  GtkWidget *pLabel;
} MainWindow;
 
void OnQuitter (GtkObject * object, gpointer data);
 
void OnButton (GtkButton * button, gpointer data);
 
void OnResultat (GtkButton * button, gpointer data);
 
void OnEffacer (GtkButton * button, gpointer data);
 
void OnDelete (GtkButton * button, gpointer data);
 
void OnAbout (GtkMenuItem * menuitem, gpointer data);
 
 
int
main (int argc, char **argv)
{
  GtkBuilder *pBuilder = NULL;
  GError *pErr = NULL;
  MainWindow *calculatrice = NULL;
 
  gtk_init (&argc, &argv);
  calculatrice = g_new (MainWindow, 1);
 
  /* Creation d'un nouveau GtkBuilder */
  pBuilder = gtk_builder_new ();
 
  if (pBuilder != NULL)
    {
      /* Chargement du fichier xml dans pBuilder */
      gtk_builder_add_from_file (pBuilder, "calculatrice.glade", &pErr);
 
      if (pErr == NULL)
	{
	  /* Recuperation d'un pointeur sur la fenetre */
	  calculatrice->pWindow = (GtkWidget *)
	    gtk_builder_get_object (pBuilder, "window1");
 
	  /* Recuperation d'un pointeur vers le GtkEntry */
	  calculatrice->pEntry = (GtkWidget *)
	    gtk_builder_get_object (pBuilder, "entry1");
 
	  /* Connexion des signaux */
	  gtk_builder_connect_signals (pBuilder, calculatrice);
 
 
	  gtk_widget_show_all (calculatrice->pWindow);
	  gtk_main ();
	}
      else
	{
	  /* Affichage du message d'erreur de Gtk+ */
	  g_error ("%s", pErr->message);
	  g_error_free (pErr);
	}
    }
 
 
  return EXIT_SUCCESS;
}
 
 
void
OnButton (GtkButton * button, gpointer data)
{
  const gchar *sEntry = NULL;
 
  /* Recuperation du calcul en cours dans la chaine sEntry */
  sEntry = gtk_entry_get_text (GTK_ENTRY (((MainWindow *) data)->pEntry));
 
  /* Cocatenation du de sEntry, avec le label du bouton */
  sEntry = g_strdup_printf ("%s%s", sEntry, gtk_button_get_label (button));
 
  /* Mise a jour du GtkEntry */
  gtk_entry_set_text (GTK_ENTRY (((MainWindow *) data)->pEntry), sEntry);
 
 
}
 
void
OnResultat (GtkButton * button, gpointer data)
{
  FILE *f_Calcul = NULL;
  FILE *f_History = NULL;
  gchar sResultat[100] = "";
 
  /* Appel du programme Calc.bin */
  if ((f_Calcul = (FILE *) popen ("./Calc.bin", "w")) == NULL)
    {
      /* En cas d'erreur */
      fprintf (stderr, "\n\tErreur popen %d\n", errno);
      exit (2);
    }
  /* Envoi de l'expression à Calc.bin */
  fprintf (f_Calcul, "%s\n",
	   gtk_entry_get_text (GTK_ENTRY (((MainWindow *) data)->pEntry)));
 
  /* Fermeture du programme Calc.bin */
  pclose (f_Calcul);
 
  /* Recuperation du resultat dans l'historique de Calc.bin */
  if ((f_History = fopen ("history.txt", "r")) == NULL)
    {
      /* En cas d'erreur */
      fprintf (stderr,
	       "\t\nErreur, Impossible d'ouvrir le fichier \"history.txt\"\n");
      exit (3);
    }
 
  /* Parcours de l'historique jusqu'au dernier resultat */
  while (fgets (sResultat, 100, f_History) != NULL);
 
  /* On suprime le '\n', à la fin du resultat */
  sResultat[strlen (sResultat) - 1] = '\0';
 
  /* Fermeture de l'historique */
  fclose (f_History);
 
  /* Affichage du resultat contenu dans sResultat, à partir
   * du caractere '>', dans le GtkEntry
   */
  gtk_entry_set_text (GTK_ENTRY (((MainWindow *) data)->pEntry),
		      sResultat + sizeof (gchar));
}
 
void
OnDelete (GtkButton * button, gpointer data)
{
  gchar *s_tmp = NULL;
 
  /* Recuperation du texte du GtkEntry */
  const gchar *sSaisie =
    gtk_entry_get_text (GTK_ENTRY (((MainWindow *) data)->pEntry));
  if (strcmp ("", sSaisie) != 0)
    {
      /* Allocation de la memoire pour la nouvelle chaine */
      s_tmp = g_malloc (strlen (sSaisie) * sizeof (gchar));
 
      /* Copie de la saisie actuelle dans la nouvelle chaine */
      strcpy (s_tmp, sSaisie);
 
      /* On place la fin de chainede s_tmp, un caractere
       * avant la saisie actuelle 
       */
      s_tmp[strlen (sSaisie) - 1] = '\0';
 
      /* On affiche la nouvelle chaine dans le GtkEntry */
      gtk_entry_set_text (GTK_ENTRY (((MainWindow *) data)->pEntry), s_tmp);
 
      /* Liberation de la memoire allouée */
      g_free (s_tmp);
    }
}
 
void
OnEffacer (GtkButton * button, gpointer data)
{
  /* On remplace la saisie actuelle par la saisie vide "" */
  gtk_entry_set_text (GTK_ENTRY (((MainWindow *) data)->pEntry), "");
}
 
void
OnAbout (GtkMenuItem * menuitem, gpointer data)
{
  GtkWidget *pMessage = NULL;
 
  pMessage =
    gtk_message_dialog_new (GTK_WINDOW ((((MainWindow *) data)->pWindow)),
			    GTK_DIALOG_MODAL, GTK_MESSAGE_INFO,
			    GTK_BUTTONS_OK, "BisonCalc-v0.2");
 
  /* Affichage de la boite de dialog "A propos de.." */
  gtk_widget_show_all (pMessage);
 
  /* Lancement de la boite de dialog */
  gtk_dialog_run (GTK_DIALOG (pMessage));
  gtk_widget_destroy (pMessage);
}
 
void
OnEffacer (GtkButton * button, gpointer data)
{
  /* On remplace la saisie actuelle par la saisie vide "" */
  gtk_entry_set_text (GTK_ENTRY (((MainWindow *) data)->pEntry), "");
}
 
void
OnAbout (GtkMenuItem * menuitem, gpointer data)
{
  GtkWidget *pMessage = NULL;
 
  pMessage =
    gtk_message_dialog_new (GTK_WINDOW ((((MainWindow *) data)->pWindow)),
			    GTK_DIALOG_MODAL, GTK_MESSAGE_INFO,
			    GTK_BUTTONS_OK, "BisonCalc-v0.2");
 
  /* Affichage de la boite de dialog "A propos de.." */
  gtk_widget_show_all (pMessage);
 
  /* Lancement de la boite de dialog */
  gtk_dialog_run (GTK_DIALOG (pMessage));
  gtk_widget_destroy (pMessage);
}
 
void
OnQuitter (GtkObject * object, gpointer data)
{
  /* Liberation de la memoire allouée
   * pour (MainWindow*) calculatrice
   */
  g_free ((void *) data);
 
  /* Arret de la boucle evennementielle */
  gtk_main_quit ();
}

et le fichier glade:

Code :

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<?xml version="1.0"?>
<interface>
  <requires lib="gtk+" version="2.16"/>
  <!-- interface-naming-policy project-wide -->
  <object class="GtkWindow" id="window1">
    <property name="border_width">5</property>
    <signal name="destroy" handler="OnQuitter"/>
    <child>
      <object class="GtkTable" id="table1">
        <property name="visible">True</property>
        <property name="n_rows">10</property>
        <property name="n_columns">11</property>
        <child>
          <object class="GtkEntry" id="entry1">
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="has_frame">False</property>
            <property name="invisible_char">&#x25CF;</property>
            <property name="width_chars">9</property>
          </object>
          <packing>
            <property name="right_attach">11</property>
            <property name="top_attach">2</property>
            <property name="bottom_attach">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkFrame" id="frame1">
            <property name="visible">True</property>
            <property name="label_xalign">0</property>
            <property name="shadow_type">none</property>
            <child>
              <object class="GtkAlignment" id="alignment1">
                <property name="visible">True</property>
                <property name="left_padding">12</property>
                <child>
                  <object class="GtkTable" id="table2">
                    <property name="visible">True</property>
                    <property name="n_rows">4</property>
                    <property name="n_columns">5</property>
                    <child>
                      <object class="GtkButton" id="chiffre7">
                        <property name="label" translatable="yes">7</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                    </child>
                    <child>
                      <object class="GtkButton" id="chiffre8">
                        <property name="label" translatable="yes">8</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">1</property>
                        <property name="right_attach">2</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="chiffre9">
                        <property name="label" translatable="yes">9</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">2</property>
                        <property name="right_attach">3</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="button4">
                        <property name="label" translatable="yes">/</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">3</property>
                        <property name="right_attach">4</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="chiffre4">
                        <property name="label" translatable="yes">4</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="top_attach">1</property>
                        <property name="bottom_attach">2</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="chiffre5">
                        <property name="label" translatable="yes">5</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">1</property>
                        <property name="right_attach">2</property>
                        <property name="top_attach">1</property>
                        <property name="bottom_attach">2</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="chiffre6">
                        <property name="label" translatable="yes">6</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">2</property>
                        <property name="right_attach">3</property>
                        <property name="top_attach">1</property>
                        <property name="bottom_attach">2</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="button8">
                        <property name="label" translatable="yes">-</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">3</property>
                        <property name="right_attach">4</property>
                        <property name="top_attach">1</property>
                        <property name="bottom_attach">2</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="chiffre1">
                        <property name="label" translatable="yes">1</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="top_attach">2</property>
                        <property name="bottom_attach">3</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="chiffre2">
                        <property name="label" translatable="yes">2</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">1</property>
                        <property name="right_attach">2</property>
                        <property name="top_attach">2</property>
                        <property name="bottom_attach">3</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="chiffre3">
                        <property name="label" translatable="yes">3</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">2</property>
                        <property name="right_attach">3</property>
                        <property name="top_attach">2</property>
                        <property name="bottom_attach">3</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="button12">
                        <property name="label" translatable="yes">*</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">3</property>
                        <property name="right_attach">4</property>
                        <property name="top_attach">2</property>
                        <property name="bottom_attach">3</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="chiffre0">
                        <property name="label" translatable="yes">0</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="top_attach">3</property>
                        <property name="bottom_attach">4</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="button14">
                        <property name="label" translatable="yes">.</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">1</property>
                        <property name="right_attach">2</property>
                        <property name="top_attach">3</property>
                        <property name="bottom_attach">4</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="button16">
                        <property name="label" translatable="yes">+</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">3</property>
                        <property name="right_attach">4</property>
                        <property name="top_attach">3</property>
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                        <property name="label" translatable="yes">&#x2190;</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnDelete"/>
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                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnResultat"/>
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                        <property name="top_attach">2</property>
                        <property name="bottom_attach">4</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="clear">
                        <property name="label" translatable="yes">CE</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnEffacer"/>
                      </object>
                      <packing>
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                        <property name="bottom_attach">2</property>
                      </packing>
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                  </object>
                </child>
              </object>
            </child>
            <child type="label">
              <object class="GtkLabel" id="label1">
                <property name="visible">True</property>
                <property name="xpad">11</property>
                <property name="label" translatable="yes">&lt;b&gt;Basique&lt;/b&gt;</property>
                <property name="use_markup">True</property>
              </object>
            </child>
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          <packing>
            <property name="right_attach">7</property>
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            <property name="bottom_attach">10</property>
            <property name="x_options">GTK_FILL</property>
          </packing>
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        <child>
          <object class="GtkFrame" id="frame2">
            <property name="visible">True</property>
            <property name="label_xalign">0</property>
            <property name="shadow_type">none</property>
            <child>
              <object class="GtkAlignment" id="alignment2">
                <property name="visible">True</property>
                <property name="left_padding">12</property>
                <child>
                  <object class="GtkTable" id="table3">
                    <property name="visible">True</property>
                    <property name="n_rows">4</property>
                    <property name="n_columns">2</property>
                    <child>
                      <object class="GtkButton" id="button17">
                        <property name="label" translatable="yes">(</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                    </child>
                    <child>
                      <object class="GtkButton" id="button18">
                        <property name="label" translatable="yes">)</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                        <signal name="clicked" handler="OnButton"/>
                      </object>
                      <packing>
                        <property name="left_attach">1</property>
                        <property name="right_attach">2</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="button19">
                        <property name="label" translatable="yes">sin</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                      </object>
                      <packing>
                        <property name="top_attach">1</property>
                        <property name="bottom_attach">2</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="button20">
                        <property name="label" translatable="yes">cos</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                      </object>
                      <packing>
                        <property name="left_attach">1</property>
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                        <property name="top_attach">1</property>
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                      <object class="GtkButton" id="button21">
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                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
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                      <packing>
                        <property name="top_attach">2</property>
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                    </child>
                    <child>
                      <object class="GtkButton" id="button22">
                        <property name="label" translatable="yes">x^y</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
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                      </packing>
                    </child>
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                      <object class="GtkButton" id="button23">
                        <property name="label" translatable="yes">pi</property>
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                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                      </object>
                      <packing>
                        <property name="top_attach">3</property>
                        <property name="bottom_attach">4</property>
                      </packing>
                    </child>
                    <child>
                      <object class="GtkButton" id="button24">
                        <property name="label" translatable="yes">log</property>
                        <property name="visible">True</property>
                        <property name="can_focus">True</property>
                        <property name="receives_default">True</property>
                      </object>
                      <packing>
                        <property name="left_attach">1</property>
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                  </object>
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              </object>
            </child>
            <child type="label">
              <object class="GtkLabel" id="label2">
                <property name="visible">True</property>
                <property name="xpad">10</property>
                <property name="label" translatable="yes">&lt;b&gt;Scientifique&lt;/b&gt;</property>
                <property name="use_markup">True</property>
              </object>
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                <property name="visible">True</property>
                <property name="label" translatable="yes">_Fichier</property>
                <property name="use_underline">True</property>
                <child type="submenu">
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                    <property name="visible">True</property>
                    <child>
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                        <property name="label">gtk-new</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem" id="imagemenuitem2">
                        <property name="label">gtk-open</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem" id="imagemenuitem3">
                        <property name="label">gtk-save</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem" id="imagemenuitem4">
                        <property name="label">gtk-save-as</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkSeparatorMenuItem" id="separatormenuitem1">
                        <property name="visible">True</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem" id="imagemenuitem5">
                        <property name="label">gtk-quit</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                        <signal name="activate" handler="OnQuitter"/>
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                    </child>
                  </object>
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              </object>
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            <child>
              <object class="GtkMenuItem" id="menuitem2">
                <property name="visible">True</property>
                <property name="label" translatable="yes">&#xC9;_dition</property>
                <property name="use_underline">True</property>
                <child type="submenu">
                  <object class="GtkMenu" id="menu2">
                    <property name="visible">True</property>
                    <child>
                      <object class="GtkImageMenuItem" id="imagemenuitem6">
                        <property name="label">gtk-cut</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem" id="imagemenuitem7">
                        <property name="label">gtk-copy</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem" id="imagemenuitem8">
                        <property name="label">gtk-paste</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem" id="imagemenuitem9">
                        <property name="label">gtk-delete</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                      </object>
                    </child>
                  </object>
                </child>
              </object>
            </child>
            <child>
              <object class="GtkMenuItem" id="menuitem3">
                <property name="visible">True</property>
                <property name="label" translatable="yes">_Affichage</property>
                <property name="use_underline">True</property>
              </object>
            </child>
            <child>
              <object class="GtkMenuItem" id="menuitem4">
                <property name="visible">True</property>
                <property name="label" translatable="yes">Aid_e</property>
                <property name="use_underline">True</property>
                <child type="submenu">
                  <object class="GtkMenu" id="menu3">
                    <property name="visible">True</property>
                    <child>
                      <object class="GtkImageMenuItem" id="imagemenuitem10">
                        <property name="label">gtk-about</property>
                        <property name="visible">True</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                        <signal name="activate" handler="OnAbout"/>
                      </object>
                    </child>
                  </object>
                </child>
              </object>
            </child>
          </object>
          <packing>
            <property name="right_attach">11</property>
          </packing>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
        <child>
          <placeholder/>
        </child>
      </object>
    </child>
  </object>
</interface>

La compilation se passe sans probleme, mais lors de l'éxécution, si je saisi une chaine, et que je clique environ 7 fois sur la touche "←" (delete), le programme se ferme avec le message d'erreur suivant:

Code :

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[artificier@smoothie glade]$./calculatrice
*** glibc detected *** ./calculatrice: free(): invalid next size (fast): 0x09c2af70 ***
======= Backtrace: =========
/lib/i686/libc.so.6[0xb76f6f34]
/lib/i686/libc.so.6(cfree+0x96)[0xb76f8f36]
/usr/lib/libglib-2.0.so.0(g_free+0x36)[0xb781f416]
/usr/lib/libgobject-2.0.so.0(g_cclosure_marshal_VOID__VOID+0x90)[0xb78bde70]
======= Memory map: ========
08048000-0804a000 r-xp 00000000 08:07 485210     /home/artificier/Programmation/glade/calculatrice
0804a000-0804b000 rw-p 00001000 08:07 485210     /home/artificier/Programmation/glade/calculatrice
09a56000-09c48000 rw-p 09a56000 00:00 0          [heap]
b6d00000-b6d21000 rw-p b6d00000 00:00 0 
b6d21000-b6e00000 ---p b6d21000 00:00 0 
b6e78000-b6e85000 r-xp 00000000 08:06 97055      /lib/libgcc_s-4.3.2.so.1
b6e85000-b6e86000 rw-p 0000c000 08:06 97055      /lib/libgcc_s-4.3.2.so.1
b6ea5000-b6ea6000 r-xp 00000000 08:06 19002      /usr/lib/gtk-2.0/2.10.0/immodules/im-cedilla.so
b6ea6000-b6ea7000 r--p 00000000 08:06 19002      /usr/lib/gtk-2.0/2.10.0/immodules/im-cedilla.so
b6ea7000-b6ea8000 rw-p 00001000 08:06 19002      /usr/lib/gtk-2.0/2.10.0/immodules/im-cedilla.so
b6ea8000-b6f34000 r--p 00000000 08:06 55454      /usr/share/fonts/TTF/dejavu/DejaVuSans-Bold.ttf
b6f34000-b6fcc000 r--p 00000000 08:06 55458      /usr/share/fonts/TTF/dejavu/DejaVuSans.ttf
b6fcc000-b6fce000 r-xp 00000000 08:06 28279      /usr/lib/pango/1.6.0/modules/pango-basic-fc.so
b6fce000-b6fcf000 r--p 00001000 08:06 28279      /usr/lib/pango/1.6.0/modules/pango-basic-fc.so
b6fcf000-b6fd0000 rw-p 00002000 08:06 28279      /usr/lib/pango/1.6.0/modules/pango-basic-fc.so
b6fd0000-b6fd6000 r--s 00000000 08:06 105538     /var/cache/fontconfig/20b58f14c9b581391d79ea335a81488a-x86.cache-2
b6fd6000-b6fd9000 r--s 00000000 08:06 105550     /var/cache/fontconfig/c59da4255e67c0866a9890836123dfcc-x86.cache-2
b6fd9000-b6fdc000 r--s 00000000 08:06 105555     /var/cache/fontconfig/e6845615947634e89d319e77806483ba-x86.cache-2
b6fdc000-b6fe2000 r--s 00000000 08:06 105551     /var/cache/fontconfig/d4b6e1db2c46a3b281c413657cd2bc49-x86.cache-2
b6fe2000-b6fe5000 r--s 00000000 08:06 105545     /var/cache/fontconfig/87f5e051180a7a75f16eb6fe7dbd3749-x86.cache-2
b6fe5000-b6feb000 r--s 00000000 08:06 105549     /var/cache/fontconfig/b79f3aaa7d385a141ab53ec885cc22a8-x86.cache-2
b6feb000-b6fee000 r--s 00000000 08:06 105543     /var/cache/fontconfig/5d999c1bbe32f61af008974facb58b71-x86.cache-2
b6fee000-b6ff5000 r--s 00000000 08:06 105544     /var/cache/fontconfig/79aeb4e90a401e55ec91db207072ba77-x86.cache-2
b6ff5000-b7002000 r--s 00000000 08:06 105546     /var/cache/fontconfig/8d4af663993b81a124ee82e610bb31f9-x86.cache-2
b7002000-b7042000 r--s 00000000 08:06 105537     /var/cache/fontconfig/17090aa38d5c6f09fb8c5c354938f1d7-x86.cache-2
b7042000-b7047000 r-xp 00000000 08:06 22253      /usr/lib/libogg.so.0.5.3
b7047000-b7048000 r--p 00004000 08:06 22253      /usr/lib/libogg.so.0.5.3
b7048000-b7049000 rw-p 00005000 08:06 22253      /usr/lib/libogg.so.0.5.3
b7049000-b7066000 r-xp 00000000 08:06 22534      /usr/lib/libvorbis.so.0.4.0
b7066000-b7067000 r--p 0001c000 08:06 22534      /usr/lib/libvorbis.so.0.4.0
b7067000-b7075000 rw-p 0001d000 08:06 22534      /usr/lib/libvorbis.so.0.4.0
b7075000-b707d000 r-xp 00000000 08:06 22141      /usr/lib/libltdl.so.7.2.0
b707d000-b707e000 r--p 00007000 08:06 22141      /usr/lib/libltdl.so.7.2.0
b707e000-b707f000 rw-p 00008000 08:06 22141      /usr/lib/libltdl.so.7.2.0
b707f000-b7086000 r-xp 00000000 08:06 22538      /usr/lib/libvorbisfile.so.3.2.0
b7086000-b7087000 r--p 00006000 08:06 22538      /usr/lib/libvorbisfile.so.3.2.0
b7087000-b7088000 rw-p 00007000 08:06 22538      /usr/lib/libvorbisfile.so.3.2.0
b7088000-b70a3000 r-xp 00000000 08:06 21282      /usr/lib/libcanberra.so.0.1.4
b70a3000-b70a4000 r--p 0001a000 08:06 21282      /usr/lib/libcanberra.so.0.1.4
b70a4000-b70a5000 rw-p 0001b000 08:06 21282      /usr/lib/libcanberra.so.0.1.4
b70a5000-b70b9000 r-xp 00000000 08:06 96913      /lib/i686/libpthread-2.9.so
b70b9000-b70ba000 r--p 00013000 08:06 96913      /lib/i686/libpthread-2.9.so
b70ba000-b70bb000 rw-p 00014000 08:06 96913      /lib/i686/libpthread-2.9.so
b70bb000-b70bd000 rw-p b70bb000 00:00 0 
b70bd000-b70e0000 r--p 00000000 08:06 82840      /usr/share/locale/fr/LC_MESSAGES/libc.mo
b70e0000-b710e000 r-xp 00000000 08:06 158279     /usr/lib/gtk-2.0/2.10.0/engines/libclearlooks.so
b710e000-b710f000 r--p 0002d000 08:06 158279     /usr/lib/gtk-2.0/2.10.0/engines/libclearlooks.so
b710f000-b7110000 rw-p 0002e000 08:06 158279     /usr/lib/gtk-2.0/2.10.0/engines/libclearlooks.so
b7110000-b7138000 r--p 00000000 08:06 82458      /usr/share/locale/fr/LC_MESSAGES/gtk20-properties.mo
b7138000-b7142000 r-xp 00000000 08:06 97080      /lib/libnss_files-2.9.so
b7142000-b7143000 r--p 00009000 08:06 97080      /lib/libnss_files-2.9.so
b7143000-b7144000 rw-p 0000a000 08:06 97080      /lib/libnss_files-2.9.so
b7144000-b7163000 r--s 00000000 08:06 21051      /var/cache/fontconfig/df311e82a1a24c41a75c2c930223552e-x86.cache-2
b7163000-b7176000 r--p 00000000 08:06 82459      /usr/share/locale/fr/LC_MESSAGES/gtk20.mo
b7176000-b71b5000 r--p 00000000 08:06 77798      /usr/share/locale/UTF-8/LC_CTYPE
b71b5000-b7299000 r--p 00000000 08:06 77797      /usr/share/locale/UTF-8/LC_COLLATE
b7299000-b729c000 rw-p b7299000 00:00 0 
b729c000-b72a1000 r-xp 00000000 08:06 21096      /usr/lib/libXdmcp.so.6.0.0
b72a1000-b72a2000 r--p 00004000 08:06 21096      /usr/lib/libXdmcp.so.6.0.0
b72a2000-b72a3000 rw-p 00005000 08:06 21096      /usr/lib/libXdmcp.so.6.0.0
b72a3000-b72a5000 r-xp 00000000 08:06 21085      /usr/lib/libXau.so.6.0.0
b72a5000-b72a6000 r--p 00001000 08:06 21085      /usr/lib/libXau.so.6.0.0
b72a6000-b72a7000 rw-p 00002000 08:06 21085      /usr/lib/libXau.so.6.0.0
b72a7000-b72c3000 r-xp 00000000 08:06 22615      /usr/lib/libxcb.so.1.1.0
b72c3000-b72c4000 r--p 0001b000 08:06 22615      /usr/lib/libxcb.so.1.1.0
b72c4000-b72c5000 rw-p 0001c000 08:06 22615      /usr/lib/libxcb.so.1.1.0
b72c5000-b72f6000 r-xp 00000000 08:06 97101      /lib/libpcre.so.0.0.1
b72f6000-b72f7000 r--p 00030000 08:06 97101      /lib/libpcre.so.0.0.1
b72f7000-b72f8000 rw-p 00031000 08:06 97101      /lib/libpcre.so.0.0.1
b72f8000-b72fa000 r-xp 00000000 08:06 97045      /lib/libdl-2.9.so
b72fa000-b72fb000 r--p 00001000 08:06 97045      /lib/libdl-2.9.so
b72fb000-b72fc000 rw-p 00002000 08:06 97045      /lib/libdl-2.9.so
b72fc000-b72fd000 rw-p b72fc000 00:00 0 
b72fd000-b7449000 r-xp 00000000 08:06 22623      /usr/lib/libxml2.so.2.7.3
b7449000-b744a000 ---p 0014c000 08:06 22623      /usr/lib/libxml2.so.2.7.3
b744a000-b744e000 r--p 0014c000 08:06 22623      /usr/lib/libxml2.so.2.7.3
b744e000-b744f000 rw-p 00150000 08:06 22623      /usr/lib/libxml2.so.2.7.3
b744f000-b7450000 rw-p b744f000 00:00 0 
b7450000-b7463000 r-xp 00000000 08:06 97148      /lib/libz.so.1.2.3
b7463000-b7464000 rw-p 00012000 08:06 97148      /lib/libz.so.1.2.3
b7464000-b748e000 r-xp 00000000 08:06 22326      /usr/lib/libpng12.so.0.35.0
b748e000-b748f000 r--p 00029000 08:06 22326      /usr/lib/libpng12.so.0.35.0
b748f000-b7490000 rw-p 0002a000 08:06 22326      /usr/lib/libpng12.so.0.35.0
b7490000-b74d9000 r-xp 00000000 08:06 22312      /usr/lib/libpixman-1.so.0.14.0
b74d9000-b74db000 r--p 00048000 08:06 22312      /usr/lib/libpixman-1.so.0.14.0
b74db000-b74dc000 rw-p 0004a000 08:06 22312      /usr/lib/libpixman-1.so.0.14.0
b74dc000-b74e4000 r-xp 00000000 08:06 21118      /usr/lib/libXrender.so.1.3.0
b74e4000-b74e5000 rw-p 00007000 08:06 21118      /usr/lib/libXrender.so.1.3.0
b74e5000-b74e6000 rw-p b74e5000 00:00 0 
b74e6000-b74e8000 r-xp 00000000 08:06 21094      /usr/lib/libXdamage.so.1.1.0
b74e8000-b74e9000 rw-p 00001000 08:06 21094      /usr/lib/libXdamage.so.1.1.0
b74e9000-b74f9000 r-xp 00000000 08:06 21098      /usr/lib/libXext.so.6.4.0
b74f9000-b74fa000 r--p 0000f000 08:06 21098      /usr/lib/libXext.so.6.4.0
b74fa000-b74fb000 rw-p 00010000 08:06 21098      /usr/lib/libXext.so.6.4.0
b74fb000-b74fd000 r-xp 00000000 08:06 21090      /usr/lib/libXcomposite.so.1.0.0
b74fd000-b74fe000 rw-p 00001000 08:06 21090      /usr/lib/libXcomposite.so.1.0.0
b74fe000-b7507000 r-xp 00000000 08:06 21092      /usr/lib/libXcursor.so.1.0.2
b7507000-b7508000 rw-p 00008000 08:06 21092      /usr/lib/libXcursor.so.1.0.2
b7508000-b750f000 r-xp 00000000 08:06 21116      /usr/lib/libXrandr.so.2.2.0
b750f000-b7510000 r--p 00006000 08:06 21116      /usr/lib/libXrandr.so.2.2.0
b7510000-b7511000 rw-p 00007000 08:06 21116      /usr/lib/libXrandr.so.2.2.0
b7511000-b7512000 rw-p b7511000 00:00 0 
b7512000-b751b000 r-xp 00000000 08:06 21106      /usr/lib/libXi.so.6.0.0
b751b000-b751c000 r--p 00008000 08:06 21106      /usr/lib/libXi.so.6.0.0
b751c000-b751d000 rw-p 00009000 08:06 21106      /usr/lib/libXi.so.6.0.0
b751d000-b751f000 r-xp 00000000 08:06 21108      /usr/lib/libXinerama.so.1.0.0
b751f000-b7520000 rw-p 00001000 08:06 21108      /usr/lib/libXinerama.so.1.0.0
b7520000-b7544000 r-xp 00000000 08:06 96911      /lib/i686/libm-2.9.so
b7544000-b7545000 r--p 00023000 08:06 96911      /lib/i686/libm-2.9.so
b7545000-b7546000 rw-p 00024000 08:06 96911      /lib/i686/libm-2.9.so
b7546000-b7683000 r-xp 00000000 08:06 21082      /usr/lib/libX11.so.6.2.0
b7683000-b7684000 r--p 0013c000 08:06 21082      /usr/lib/libX11.so.6.2.0
b7684000-b7687000 rw-p 0013d000 08:06 21082      /usr/lib/libX11.so.6.2.0
b7687000-b768b000 r-xp 00000000 08:06 21100      /usr/lib/libAbandon

Le bouton en question appelle la fonction OnDelete.
De plus, pour cette fonction, j'ai l'impression de m'etre un peu cassé la tete pour rien

Je pense, qu'il doit y avoir beaucoup plus simple...

Donc, ben si vous avez une petite idée...
Merci

**teuf13** · 24/10/2009, 16h22

T'as g_strdup pour dupliquer une chaîne plutôt que de tout faire à la main. Mais je ne pense pas que tu aies besoin de la dupliquer, tu dois pouvoir passer sSaisie directement à gtk_entry_set_text

**Gamall** · 24/10/2009, 16h55

Merci, je connaissais g_strdup_printf, mais pour g_strdup, je ne savais pas à quoi elle servait.

Voici donc ma nouvelle fonction:

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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void
OnDelete (GtkButton * button, gpointer data)
{
  gchar *sNewSaisie = NULL;
 
  /* Recuperation du texte du GtkEntry */
  if (strcmp
      ("",
       gtk_entry_get_text (GTK_ENTRY (((MainWindow *) data)->pEntry))) != 0)
    {
      sNewSaisie =
	g_strdup (gtk_entry_get_text
		  (GTK_ENTRY (((MainWindow *) data)->pEntry)));
 
      sNewSaisie[strlen (sNewSaisie) - sizeof (gchar)] = '\0';
      gtk_entry_set_text (GTK_ENTRY (((MainWindow *) data)->pEntry),
			  sNewSaisie);
      g_free (sNewSaisie);
    }
}

ça marche maintenant

Mais peut être qu'il y a plus simple

**teuf13** · 24/10/2009, 17h05

Pas besoin de rajouter le \0 à la main, g_strdup le fait pour toi.Et encore une fois, ça ne sert pas à grand chose de dupliquer la chaîne pour la passer à gtk_entry_set_text. Sinon dans une autre de tes fonctions, tu leakes la valeur de retour de g_strdup_printf

**Gamall** · 24/10/2009, 17h29

Pas besoin de rajouter le \0 à la main, g_strdup le fait pour toi.

Ben non, le but est de placer la fin de la chaine, à la place du caractère à supprimer.
Le petit problème, c'est que si on veut supprimer un caractère en milieu de chaine, on supprime tout ce qu'il y a après avec

Donc, placer un '\0', n'est peut-être pas la meilleure solution.

Sinon dans une autre de tes fonctions, tu leakes la valeur de retour de g_strdup_printf

Par contre, là je ne comprends pas trop ce que tu veux dire...

GtkEntry, erreur de segmentation

GTK+ avec C & C++

Vue hybride

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