GtkStack segmentation fault

I've made a simple program to learn how to work with the GtkStack Widget. The program is supposed to switch stack pages when the button is clicked. However when the button is clicked the program terminates with the error segmentation fault I am very new to both C and GTK and can't seem to understand why this isn't working.

OS: Debian 9.6 with Gnome 3.22.2

C Code:

#include <gtk/gtk.h>



typedef struct _MyStruct

{

    GtkWidget *mainWindow;

    GtkWidget *myStack;

    GtkWidget *page0;

    GtkWidget *page1;

    GtkWidget *buttonPage0;

    GtkWidget *buttonPage1;

}   MyStruct;



static void clickedButtonPage0(GtkWidget *widget, MyStruct *mrp)

{

    gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page1);

}



static void clickedButtonPage1(GtkWidget *widget, MyStruct *mrp)

{

    gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page0);

}



int main(int argc, char *argv)

{

    GtkBuilder *builder;

    MyStruct mrp;



    gtk_init(&argc, &argv);



    builder = gtk_builder_new();

    gtk_builder_add_from_file (builder, "stackTest.glade", NULL);



    mrp.mainWindow = GTK_WIDGET(gtk_builder_get_object(builder, "myWindow"));

    g_signal_connect(mrp.mainWindow, "destroy", G_CALLBACK(gtk_main_quit), NULL);



    mrp.myStack = GTK_WIDGET(gtk_builder_get_object(builder, "myStack"));

    mrp.page0 = GTK_WIDGET(gtk_builder_get_object(builder, "page0"));

    mrp.page1 = GTK_WIDGET(gtk_builder_get_object(builder, "page1"));



    mrp.buttonPage0 = GTK_WIDGET(gtk_builder_get_object(builder, "buttonPage0"));

    mrp.buttonPage1 = GTK_WIDGET(gtk_builder_get_object(builder, "buttonPage1"));



    g_signal_connect(mrp.buttonPage0, "clicked", G_CALLBACK(clickedButtonPage0), NULL);

    g_signal_connect(mrp.buttonPage1, "clicked", G_CALLBACK(clickedButtonPage1), NULL);



    g_object_unref(builder);



    gtk_window_set_default_size(GTK_WINDOW(mrp.mainWindow), 600, 400);

    gtk_window_set_title(GTK_WINDOW(mrp.mainWindow), "GtkStack Test");



    gtk_widget_show_all(mrp.mainWindow);



    gtk_main();



    return 0;

}

Glade XLM:

<?xml version="1.0" encoding="UTF-8"?>

<!-- Generated with glade 3.20.0 -->

<interface>

  <requires lib="gtk+" version="3.20"/>

  <object class="GtkWindow" id="myWindow">

    <property name="can_focus">False</property>

    <child>

      <object class="GtkStack" id="myStack">

        <property name="visible">True</property>

        <property name="can_focus">False</property>

        <child>

          <object class="GtkBox" id="page0">

            <property name="visible">True</property>

            <property name="can_focus">False</property>

            <property name="orientation">vertical</property>

            <child>

              <object class="GtkLabel" id="lblPage0">

                <property name="visible">True</property>

                <property name="can_focus">False</property>

                <property name="label" translatable="yes">I am page 0</property>

              </object>

              <packing>

                <property name="expand">True</property>

                <property name="fill">True</property>

                <property name="position">0</property>

              </packing>

            </child>

            <child>

              <object class="GtkButton" id="buttonPage0">

                <property name="label" translatable="yes">button</property>

                <property name="visible">True</property>

                <property name="can_focus">True</property>

                <property name="receives_default">True</property>

              </object>

              <packing>

                <property name="expand">False</property>

                <property name="fill">True</property>

                <property name="position">1</property>

              </packing>

            </child>

          </object>

          <packing>

            <property name="name">page0</property>

            <property name="title" translatable="yes">page0</property>

          </packing>

        </child>

        <child>

          <object class="GtkBox" id="page1">

            <property name="visible">True</property>

            <property name="can_focus">False</property>

            <property name="orientation">vertical</property>

            <child>

              <object class="GtkLabel" id="lblPage1">

                <property name="visible">True</property>

                <property name="can_focus">False</property>

                <property name="label" translatable="yes">I am Page 1</property>

              </object>

              <packing>

                <property name="expand">True</property>

                <property name="fill">True</property>

                <property name="position">0</property>

              </packing>

            </child>

            <child>

              <object class="GtkButton" id="buttonPage1">

                <property name="label" translatable="yes">Home</property>

                <property name="visible">True</property>

                <property name="can_focus">True</property>

                <property name="receives_default">True</property>

              </object>

              <packing>

                <property name="expand">False</property>

                <property name="fill">True</property>

                <property name="position">1</property>

              </packing>

            </child>

          </object>

          <packing>

            <property name="name">page1</property>

            <property name="title" translatable="yes">page1</property>

            <property name="position">1</property>

          </packing>

        </child>

        <child>

          <placeholder/>

        </child>

      </object>

    </child>

  </object>

</interface>

Compiled using:

gcc stackTest.c -o stackTest `pkg-config --cflags --libs gtk+-3.0`

edited Jan 1 at 20:06

asked Jan 1 at 18:39

M. P.

1116

This is a good time to start learning how to use a debugger. Run your program in GDB and you will immediately see the problem.

– Gerhardh
Jan 1 at 20:41

add a comment |

OS: Debian 9.6 with Gnome 3.22.2

C Code:

#include <gtk/gtk.h>



typedef struct _MyStruct

{

    GtkWidget *mainWindow;

    GtkWidget *myStack;

    GtkWidget *page0;

    GtkWidget *page1;

    GtkWidget *buttonPage0;

    GtkWidget *buttonPage1;

}   MyStruct;



static void clickedButtonPage0(GtkWidget *widget, MyStruct *mrp)

{

    gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page1);

}



static void clickedButtonPage1(GtkWidget *widget, MyStruct *mrp)

{

    gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page0);

}



int main(int argc, char *argv)

{

    GtkBuilder *builder;

    MyStruct mrp;



    gtk_init(&argc, &argv);



    builder = gtk_builder_new();

    gtk_builder_add_from_file (builder, "stackTest.glade", NULL);



    mrp.mainWindow = GTK_WIDGET(gtk_builder_get_object(builder, "myWindow"));

    g_signal_connect(mrp.mainWindow, "destroy", G_CALLBACK(gtk_main_quit), NULL);



    mrp.myStack = GTK_WIDGET(gtk_builder_get_object(builder, "myStack"));

    mrp.page0 = GTK_WIDGET(gtk_builder_get_object(builder, "page0"));

    mrp.page1 = GTK_WIDGET(gtk_builder_get_object(builder, "page1"));



    mrp.buttonPage0 = GTK_WIDGET(gtk_builder_get_object(builder, "buttonPage0"));

    mrp.buttonPage1 = GTK_WIDGET(gtk_builder_get_object(builder, "buttonPage1"));



    g_signal_connect(mrp.buttonPage0, "clicked", G_CALLBACK(clickedButtonPage0), NULL);

    g_signal_connect(mrp.buttonPage1, "clicked", G_CALLBACK(clickedButtonPage1), NULL);



    g_object_unref(builder);



    gtk_window_set_default_size(GTK_WINDOW(mrp.mainWindow), 600, 400);

    gtk_window_set_title(GTK_WINDOW(mrp.mainWindow), "GtkStack Test");



    gtk_widget_show_all(mrp.mainWindow);



    gtk_main();



    return 0;

}

Glade XLM:

<?xml version="1.0" encoding="UTF-8"?>

<!-- Generated with glade 3.20.0 -->

<interface>

  <requires lib="gtk+" version="3.20"/>

  <object class="GtkWindow" id="myWindow">

    <property name="can_focus">False</property>

    <child>

      <object class="GtkStack" id="myStack">

        <property name="visible">True</property>

        <property name="can_focus">False</property>

        <child>

          <object class="GtkBox" id="page0">

            <property name="visible">True</property>

            <property name="can_focus">False</property>

            <property name="orientation">vertical</property>

            <child>

              <object class="GtkLabel" id="lblPage0">

                <property name="visible">True</property>

                <property name="can_focus">False</property>

                <property name="label" translatable="yes">I am page 0</property>

              </object>

              <packing>

                <property name="expand">True</property>

                <property name="fill">True</property>

                <property name="position">0</property>

              </packing>

            </child>

            <child>

              <object class="GtkButton" id="buttonPage0">

                <property name="label" translatable="yes">button</property>

                <property name="visible">True</property>

                <property name="can_focus">True</property>

                <property name="receives_default">True</property>

              </object>

              <packing>

                <property name="expand">False</property>

                <property name="fill">True</property>

                <property name="position">1</property>

              </packing>

            </child>

          </object>

          <packing>

            <property name="name">page0</property>

            <property name="title" translatable="yes">page0</property>

          </packing>

        </child>

        <child>

          <object class="GtkBox" id="page1">

            <property name="visible">True</property>

            <property name="can_focus">False</property>

            <property name="orientation">vertical</property>

            <child>

              <object class="GtkLabel" id="lblPage1">

                <property name="visible">True</property>

                <property name="can_focus">False</property>

                <property name="label" translatable="yes">I am Page 1</property>

              </object>

              <packing>

                <property name="expand">True</property>

                <property name="fill">True</property>

                <property name="position">0</property>

              </packing>

            </child>

            <child>

              <object class="GtkButton" id="buttonPage1">

                <property name="label" translatable="yes">Home</property>

                <property name="visible">True</property>

                <property name="can_focus">True</property>

                <property name="receives_default">True</property>

              </object>

              <packing>

                <property name="expand">False</property>

                <property name="fill">True</property>

                <property name="position">1</property>

              </packing>

            </child>

          </object>

          <packing>

            <property name="name">page1</property>

            <property name="title" translatable="yes">page1</property>

            <property name="position">1</property>

          </packing>

        </child>

        <child>

          <placeholder/>

        </child>

      </object>

    </child>

  </object>

</interface>

Compiled using:

gcc stackTest.c -o stackTest `pkg-config --cflags --libs gtk+-3.0`

edited Jan 1 at 20:06

asked Jan 1 at 18:39

M. P.

1116

This is a good time to start learning how to use a debugger. Run your program in GDB and you will immediately see the problem.

– Gerhardh
Jan 1 at 20:41

add a comment |

OS: Debian 9.6 with Gnome 3.22.2

C Code:

#include <gtk/gtk.h>



typedef struct _MyStruct

{

    GtkWidget *mainWindow;

    GtkWidget *myStack;

    GtkWidget *page0;

    GtkWidget *page1;

    GtkWidget *buttonPage0;

    GtkWidget *buttonPage1;

}   MyStruct;



static void clickedButtonPage0(GtkWidget *widget, MyStruct *mrp)

{

    gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page1);

}



static void clickedButtonPage1(GtkWidget *widget, MyStruct *mrp)

{

    gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page0);

}



int main(int argc, char *argv)

{

    GtkBuilder *builder;

    MyStruct mrp;



    gtk_init(&argc, &argv);



    builder = gtk_builder_new();

    gtk_builder_add_from_file (builder, "stackTest.glade", NULL);



    mrp.mainWindow = GTK_WIDGET(gtk_builder_get_object(builder, "myWindow"));

    g_signal_connect(mrp.mainWindow, "destroy", G_CALLBACK(gtk_main_quit), NULL);



    mrp.myStack = GTK_WIDGET(gtk_builder_get_object(builder, "myStack"));

    mrp.page0 = GTK_WIDGET(gtk_builder_get_object(builder, "page0"));

    mrp.page1 = GTK_WIDGET(gtk_builder_get_object(builder, "page1"));



    mrp.buttonPage0 = GTK_WIDGET(gtk_builder_get_object(builder, "buttonPage0"));

    mrp.buttonPage1 = GTK_WIDGET(gtk_builder_get_object(builder, "buttonPage1"));



    g_signal_connect(mrp.buttonPage0, "clicked", G_CALLBACK(clickedButtonPage0), NULL);

    g_signal_connect(mrp.buttonPage1, "clicked", G_CALLBACK(clickedButtonPage1), NULL);



    g_object_unref(builder);



    gtk_window_set_default_size(GTK_WINDOW(mrp.mainWindow), 600, 400);

    gtk_window_set_title(GTK_WINDOW(mrp.mainWindow), "GtkStack Test");



    gtk_widget_show_all(mrp.mainWindow);



    gtk_main();



    return 0;

}

Glade XLM:

<?xml version="1.0" encoding="UTF-8"?>

<!-- Generated with glade 3.20.0 -->

<interface>

  <requires lib="gtk+" version="3.20"/>

  <object class="GtkWindow" id="myWindow">

    <property name="can_focus">False</property>

    <child>

      <object class="GtkStack" id="myStack">

        <property name="visible">True</property>

        <property name="can_focus">False</property>

        <child>

          <object class="GtkBox" id="page0">

            <property name="visible">True</property>

            <property name="can_focus">False</property>

            <property name="orientation">vertical</property>

            <child>

              <object class="GtkLabel" id="lblPage0">

                <property name="visible">True</property>

                <property name="can_focus">False</property>

                <property name="label" translatable="yes">I am page 0</property>

              </object>

              <packing>

                <property name="expand">True</property>

                <property name="fill">True</property>

                <property name="position">0</property>

              </packing>

            </child>

            <child>

              <object class="GtkButton" id="buttonPage0">

                <property name="label" translatable="yes">button</property>

                <property name="visible">True</property>

                <property name="can_focus">True</property>

                <property name="receives_default">True</property>

              </object>

              <packing>

                <property name="expand">False</property>

                <property name="fill">True</property>

                <property name="position">1</property>

              </packing>

            </child>

          </object>

          <packing>

            <property name="name">page0</property>

            <property name="title" translatable="yes">page0</property>

          </packing>

        </child>

        <child>

          <object class="GtkBox" id="page1">

            <property name="visible">True</property>

            <property name="can_focus">False</property>

            <property name="orientation">vertical</property>

            <child>

              <object class="GtkLabel" id="lblPage1">

                <property name="visible">True</property>

                <property name="can_focus">False</property>

                <property name="label" translatable="yes">I am Page 1</property>

              </object>

              <packing>

                <property name="expand">True</property>

                <property name="fill">True</property>

                <property name="position">0</property>

              </packing>

            </child>

            <child>

              <object class="GtkButton" id="buttonPage1">

                <property name="label" translatable="yes">Home</property>

                <property name="visible">True</property>

                <property name="can_focus">True</property>

                <property name="receives_default">True</property>

              </object>

              <packing>

                <property name="expand">False</property>

                <property name="fill">True</property>

                <property name="position">1</property>

              </packing>

            </child>

          </object>

          <packing>

            <property name="name">page1</property>

            <property name="title" translatable="yes">page1</property>

            <property name="position">1</property>

          </packing>

        </child>

        <child>

          <placeholder/>

        </child>

      </object>

    </child>

  </object>

</interface>

Compiled using:

gcc stackTest.c -o stackTest `pkg-config --cflags --libs gtk+-3.0`

edited Jan 1 at 20:06

asked Jan 1 at 18:39

M. P.

1116

OS: Debian 9.6 with Gnome 3.22.2

C Code:

#include <gtk/gtk.h>



typedef struct _MyStruct

{

    GtkWidget *mainWindow;

    GtkWidget *myStack;

    GtkWidget *page0;

    GtkWidget *page1;

    GtkWidget *buttonPage0;

    GtkWidget *buttonPage1;

}   MyStruct;



static void clickedButtonPage0(GtkWidget *widget, MyStruct *mrp)

{

    gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page1);

}



static void clickedButtonPage1(GtkWidget *widget, MyStruct *mrp)

{

    gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page0);

}



int main(int argc, char *argv)

{

    GtkBuilder *builder;

    MyStruct mrp;



    gtk_init(&argc, &argv);



    builder = gtk_builder_new();

    gtk_builder_add_from_file (builder, "stackTest.glade", NULL);



    mrp.mainWindow = GTK_WIDGET(gtk_builder_get_object(builder, "myWindow"));

    g_signal_connect(mrp.mainWindow, "destroy", G_CALLBACK(gtk_main_quit), NULL);



    mrp.myStack = GTK_WIDGET(gtk_builder_get_object(builder, "myStack"));

    mrp.page0 = GTK_WIDGET(gtk_builder_get_object(builder, "page0"));

    mrp.page1 = GTK_WIDGET(gtk_builder_get_object(builder, "page1"));



    mrp.buttonPage0 = GTK_WIDGET(gtk_builder_get_object(builder, "buttonPage0"));

    mrp.buttonPage1 = GTK_WIDGET(gtk_builder_get_object(builder, "buttonPage1"));



    g_signal_connect(mrp.buttonPage0, "clicked", G_CALLBACK(clickedButtonPage0), NULL);

    g_signal_connect(mrp.buttonPage1, "clicked", G_CALLBACK(clickedButtonPage1), NULL);



    g_object_unref(builder);



    gtk_window_set_default_size(GTK_WINDOW(mrp.mainWindow), 600, 400);

    gtk_window_set_title(GTK_WINDOW(mrp.mainWindow), "GtkStack Test");



    gtk_widget_show_all(mrp.mainWindow);



    gtk_main();



    return 0;

}

Glade XLM:

<?xml version="1.0" encoding="UTF-8"?>

<!-- Generated with glade 3.20.0 -->

<interface>

  <requires lib="gtk+" version="3.20"/>

  <object class="GtkWindow" id="myWindow">

    <property name="can_focus">False</property>

    <child>

      <object class="GtkStack" id="myStack">

        <property name="visible">True</property>

        <property name="can_focus">False</property>

        <child>

          <object class="GtkBox" id="page0">

            <property name="visible">True</property>

            <property name="can_focus">False</property>

            <property name="orientation">vertical</property>

            <child>

              <object class="GtkLabel" id="lblPage0">

                <property name="visible">True</property>

                <property name="can_focus">False</property>

                <property name="label" translatable="yes">I am page 0</property>

              </object>

              <packing>

                <property name="expand">True</property>

                <property name="fill">True</property>

                <property name="position">0</property>

              </packing>

            </child>

            <child>

              <object class="GtkButton" id="buttonPage0">

                <property name="label" translatable="yes">button</property>

                <property name="visible">True</property>

                <property name="can_focus">True</property>

                <property name="receives_default">True</property>

              </object>

              <packing>

                <property name="expand">False</property>

                <property name="fill">True</property>

                <property name="position">1</property>

              </packing>

            </child>

          </object>

          <packing>

            <property name="name">page0</property>

            <property name="title" translatable="yes">page0</property>

          </packing>

        </child>

        <child>

          <object class="GtkBox" id="page1">

            <property name="visible">True</property>

            <property name="can_focus">False</property>

            <property name="orientation">vertical</property>

            <child>

              <object class="GtkLabel" id="lblPage1">

                <property name="visible">True</property>

                <property name="can_focus">False</property>

                <property name="label" translatable="yes">I am Page 1</property>

              </object>

              <packing>

                <property name="expand">True</property>

                <property name="fill">True</property>

                <property name="position">0</property>

              </packing>

            </child>

            <child>

              <object class="GtkButton" id="buttonPage1">

                <property name="label" translatable="yes">Home</property>

                <property name="visible">True</property>

                <property name="can_focus">True</property>

                <property name="receives_default">True</property>

              </object>

              <packing>

                <property name="expand">False</property>

                <property name="fill">True</property>

                <property name="position">1</property>

              </packing>

            </child>

          </object>

          <packing>

            <property name="name">page1</property>

            <property name="title" translatable="yes">page1</property>

            <property name="position">1</property>

          </packing>

        </child>

        <child>

          <placeholder/>

        </child>

      </object>

    </child>

  </object>

</interface>

Compiled using:

gcc stackTest.c -o stackTest `pkg-config --cflags --libs gtk+-3.0`

c gtk gtk3 glade

edited Jan 1 at 20:06

asked Jan 1 at 18:39

M. P.

1116

edited Jan 1 at 20:06

asked Jan 1 at 18:39

M. P.

1116

edited Jan 1 at 20:06

asked Jan 1 at 18:39

M. P.

1116

asked Jan 1 at 18:39

M. P.

1116

asked Jan 1 at 18:39

M. P.

1116

This is a good time to start learning how to use a debugger. Run your program in GDB and you will immediately see the problem.

– Gerhardh
Jan 1 at 20:41

add a comment |

This is a good time to start learning how to use a debugger. Run your program in GDB and you will immediately see the problem.

– Gerhardh
Jan 1 at 20:41

This is a good time to start learning how to use a debugger. Run your program in GDB and you will immediately see the problem.

– Gerhardh
Jan 1 at 20:41

add a comment |

1 Answer
1

active

oldest

votes

The debugger tells you where the segmentation fault happens:

gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page1);

Only used variable is mrp. This variable is NULL.

And it is NULL because you provide only a NULL pointer:

g_signal_connect(mrp.buttonPage0, "clicked", G_CALLBACK(clickedButtonPage0), NULL);

g_signal_connect(mrp.buttonPage1, "clicked", G_CALLBACK(clickedButtonPage1), NULL);

Replace NULL with &mrp and it will work.

answered Jan 1 at 20:44

Gerhardh

4,1542726

Thank you very much for showing me not only the problem but how you found the problem. You've been a huge help.

– M. P.
Jan 1 at 20:52

add a comment |

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The debugger tells you where the segmentation fault happens:

gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page1);

Only used variable is mrp. This variable is NULL.

And it is NULL because you provide only a NULL pointer:

g_signal_connect(mrp.buttonPage0, "clicked", G_CALLBACK(clickedButtonPage0), NULL);

g_signal_connect(mrp.buttonPage1, "clicked", G_CALLBACK(clickedButtonPage1), NULL);

Replace NULL with &mrp and it will work.

answered Jan 1 at 20:44

Gerhardh

4,1542726

Thank you very much for showing me not only the problem but how you found the problem. You've been a huge help.

– M. P.
Jan 1 at 20:52

add a comment |

The debugger tells you where the segmentation fault happens:

gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page1);

Only used variable is mrp. This variable is NULL.

And it is NULL because you provide only a NULL pointer:

g_signal_connect(mrp.buttonPage0, "clicked", G_CALLBACK(clickedButtonPage0), NULL);

g_signal_connect(mrp.buttonPage1, "clicked", G_CALLBACK(clickedButtonPage1), NULL);

Replace NULL with &mrp and it will work.

answered Jan 1 at 20:44

Gerhardh

4,1542726

Thank you very much for showing me not only the problem but how you found the problem. You've been a huge help.

– M. P.
Jan 1 at 20:52

add a comment |

The debugger tells you where the segmentation fault happens:

gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page1);

Only used variable is mrp. This variable is NULL.

And it is NULL because you provide only a NULL pointer:

g_signal_connect(mrp.buttonPage0, "clicked", G_CALLBACK(clickedButtonPage0), NULL);

g_signal_connect(mrp.buttonPage1, "clicked", G_CALLBACK(clickedButtonPage1), NULL);

Replace NULL with &mrp and it will work.

answered Jan 1 at 20:44

Gerhardh

4,1542726

The debugger tells you where the segmentation fault happens:

gtk_stack_set_visible_child (GTK_STACK(mrp->myStack), mrp->page1);

Only used variable is mrp. This variable is NULL.

And it is NULL because you provide only a NULL pointer:

g_signal_connect(mrp.buttonPage0, "clicked", G_CALLBACK(clickedButtonPage0), NULL);

g_signal_connect(mrp.buttonPage1, "clicked", G_CALLBACK(clickedButtonPage1), NULL);

Replace NULL with &mrp and it will work.

answered Jan 1 at 20:44

Gerhardh

4,1542726

answered Jan 1 at 20:44

Gerhardh

4,1542726

answered Jan 1 at 20:44

Gerhardh

4,1542726

answered Jan 1 at 20:44

Gerhardh

4,1542726

Thank you very much for showing me not only the problem but how you found the problem. You've been a huge help.

– M. P.
Jan 1 at 20:52

add a comment |

Thank you very much for showing me not only the problem but how you found the problem. You've been a huge help.

– M. P.
Jan 1 at 20:52

Thank you very much for showing me not only the problem but how you found the problem. You've been a huge help.

– M. P.
Jan 1 at 20:52

add a comment |

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