[Gambas-bugtracker] Bug #1408: eof() fails with file sizes greater than 4GB

[bugtracker at gambaswiki.org]

http://gambaswiki.org/bugtracker/edit?object=BUG.1408&from=L21haW4-

Tony MOREHEN reported a new bug.

Summary
-------

eof() fails with file sizes greater than 4GB

Type             : Bug
Priority         : Medium
Gambas version   : Unknown
Product          : Unknown


Description
-----------

If you try to read a file with a size in excess of 4GB, eof will return true after only a portion of the file is read.  For example, if the file size is 5.4GB, eof()=True will be hit when only 1.4GB is read.  Since 4GB is the max value of a 32bit integer, 1.4GB is the overflow when you try to convert 5.4GB to a 32 bit integer.  This suggests that eof() is using integers in its calculations when it should be using longs.


System information
------------------

[System]
Gambas=3.11.90
OperatingSystem=Linux
Kernel=4.18.3-1-MANJARO
Architecture=x86_64
Distribution=Manjaro Linux
Desktop=XFCE
Theme=Gtk
Language=en_CA.utf8
Memory=5911M

[Libraries]
Cairo=libcairo.so.2.11512.0
Curl=libcurl.so.4.5.0
DBus=libdbus-1.so.3.19.8
GStreamer=libgstreamer-1.0.so.0.1402.0
GTK+2=libgtk-x11-2.0.so.0.2400.32
GTK+3=libgtk-3.so.0.2200.30
OpenGL=libGL.so.1.7.0
Poppler=libpoppler.so.78.0.0
QT4=libQtCore.so.4.8.7
QT5=libQt5Core.so.5.11.1
SDL=libSDL-1.2.so.0.11.4
SQLite=libsqlite3.so.0.8.6

[Environment]
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
DESKTOP_SESSION=xfce-gbSessionManager
DISPLAY=:0
EDITOR=/usr/bin/nano
GB_GUI=gb.qt4
GDMSESSION=xfce-gbSessionManager
GDM_LANG=en_CA.utf8
GLADE_CATALOG_PATH=:
GLADE_MODULE_PATH=:
GLADE_PIXMAP_PATH=:
GTK2_RC_FILES=<home>/.gtkrc-2.0
GTK_CSD=1
GTK_MODULES=canberra-gtk-module:canberra-gtk-module
GTK_OVERLAY_SCROLLING=0
HOME=<home>
LANG=en_CA.utf8
LC_ADDRESS=en_CA.UTF-8
LC_IDENTIFICATION=en_CA.UTF-8
LC_MEASUREMENT=en_CA.UTF-8
LC_MONETARY=en_CA.UTF-8
LC_NAME=en_CA.UTF-8
LC_NUMERIC=en_CA.UTF-8
LC_PAPER=en_CA.UTF-8
LC_TELEPHONE=en_CA.UTF-8
LC_TIME=en_CA.UTF-8
LOGNAME=<user>
MAIL=/var/spool/mail/<user>
MOZ_PLUGIN_PATH=/usr/lib/mozilla/plugins
PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl
PWD=<home>
QT_AUTO_SCREEN_SCALE_FACTOR=0
QT_QPA_PLATFORMTHEME=qt5ct
SHELL=/bin/bash
SHLVL=2
TZ=:/etc/localtime
USER=<user>
XAUTHORITY=<home>/.Xauthority
XDG_CONFIG_DIRS=/etc/xdg
XDG_CURRENT_DESKTOP=XFCE
XDG_DATA_DIRS=/usr/local/share:/usr/share
XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/<user>
XDG_MENU_PREFIX=xfce-
XDG_RUNTIME_DIR=/run/user/1000
XDG_SEAT=seat0
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_SESSION_DESKTOP=xfce-gbSessionManager
XDG_SESSION_ID=1
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_SESSION_TYPE=x11
XDG_VTNR=7
_=/usr/bin/gbSessionManager