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  • Why are member constants available even if there are no instances of a its class?

    - by flockofcode
    1) Why are member constants available even if there are no instances of a its class? 2) Is the only reason why constant expressions need to be fully evaluated at compile time due to compiler replacing constant variable with literal value? 3) Since string is also an object, I would think the following would produce an error, but it doesn’t. Why? class A { const string b = “it works”; } thank you

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  • Why is the page still caching even after the no-cache headers have been sent?

    - by Matthew Grasinger
    I've done a ton of research on this and have asked many people with help and still no success. Here are the details... I'm involved in developing a website that pulls data from various data files, combines them in a temp .csv file, and then is graphed using a popular graphing library: dygraphs. The bulk of the website is written in PHP. The parameters that determine the data that is graphed are stored in the users session, the .csv is named after the users session and available for download, and then the .csv file is written in a script that passes it to the dygraphs object. And we've found, even with the no-cache headers sent: header("Cache-Control: no-cache, must-revalidate"); header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); Many users experience in the middle of a session, (if enough different graphs are generated) the page displaying an older, static rendering of the page (data they had graphed earlier in the session) as if it were cached and loaded instead of getting a new request. It only gets weirder though: I've checked using developer tools in both Firefox and Chrome and both browsers are receiving the no-cache headers just fine; Even when the problem occurs if you view the page source, the source is the correct content (a table/legend is also dynamically created using php, the source shows the correct table, but what is rendered is older content); the page begins to render correctly until the graph is about to be display, and then shows the older content; the older content displays as if it were a completely static overlay--the cached graph does not have the same dynamic features (roll over data point display, zoom and pan, etc.) And it is as if the correct page were somewhere beneath it (the download button for the csv file moves depending on how large the table is. The older, static page does nothing if you click the download .csv button, but if you can manage to find the one in the page beneath it you can click and still download the .csv. The data in the .csv is correct) It is one of the strangest things I've seen in development thus far. Some other relevant facts are that all the problems I've personally experience occurred while I was using Chrome. Non of these symptoms have been reported by Firefox users. IE users have had the same problems (IE users are forced to use chrome frame). I'm at my wits end at this point. We've sent the php headers; we've tried setting the cache profile for php on IIS as "DisableCache" (or whatever); we've tried sending a random query string to the results page; we've tried all the appropriate meta tags--all with no success.

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  • mysql_affected_rows() always returns 1 even though no row was updated.

    - by happyhardik
    What I am trying to do is: (programmatically) Update status where id is something, if no rows where updated, give error: we cannot find the record with id something, otherwise give message success. Here I am using mysql_affected_rows() to know if a row was updated or not, but it always return 1, so the user gets a success message, even though there was no row updated. Can anyone tell me what could it be?

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  • MAMP Pro Uninstaller Throws "The privileged action failed." Error Even After Entering Password

    - by BigM
    I have followed, and successfully completed, every step in this SO article to remove MAMP Pro in favor of installing the free version as I only need it for one site anyway. However, when I run the uninstaller I still get "The privileged action failed." after providing the password. Can anybody shed a little light on this maybe? I'm just trying to get MAMP Pro uninstalled so I can install the free MAMP stack.

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  • network is not available even when cisco vpn client is connected. wrong route?

    - by javapowered
    I'm using Vodafone 3G modem. I've disabled other network devices in the system (ethernet, wifi, wimax) turned off firewall and antivirus. cisco vpn client connects successfully but I still can not access computer 192.168.147.120 (as well as any other computer from network). Any suggestions are welcome as I don't know what to do. ipconfig /all and route print commands (translated to english): Microsoft Windows [Version 6.1.7601] (C) Microsoft Corporation (Microsoft Corp.), 2009. All rights reserved. C: \ Users \ Oleg> ipconfig / all IP Configuration for Windows The name of the computer. . . . . . . . . : OlegPC The primary DNS-suffix. . . . . . : Node Type. . . . . . . . . . . . . : Hybrid IP-routing is enabled. . . . : No WINS-proxy enabled. . . . . . . : No Ethernet adapter Local Area Connection 4: DNS-suffix for this connection. . . . . : Description. . . . . . . . . . . . . : Cisco Systems VPN Adapter Physical Address. . . . . . . . . 00-05-9A-3C-78-00 DHCP is enabled. . . . . . . . . . . : No Autoconfiguration Enabled. . . . . . : Yes Local IPv6-address channel. . . : Fe80:: c073: 41b2: 852f: eb87% 26 (Preferred) IPv4-address. . . . . . . . . . . . : 10.53.127.204 (Preferred) The subnet mask. . . . . . . . . . : 255.0.0.0 Default Gateway. . . . . . . . . : IAID DHCPv6. . . . . . . . . . . : 536872346 DUID the client DHCPv6. . . . . . . 00-01-00-01-14-6F-4C-8D-60-EB-69-85-10-2D DNS-servers. . . . . . . . . . . : Fec0: 0:0: ffff:: 1% 1 fec0: 0:0: ffff:: 2% 1 fec0: 0:0: ffff:: 3% 1 NetBios over TCP / IP. . . . . . . . : Disabled Adapter mobile broadband connection through a broadband adapter mobile communications: DNS-suffix for this connection. . . . . : Description. . . . . . . . . . . . . : Vodafone Mobile Broadband Network Adapter (Huawei) Physical Address. . . . . . . . . 58-2C-80-13-92-63 DHCP is enabled. . . . . . . . . . . : No Autoconfiguration Enabled. . . . . . : Yes IPv4-address. . . . . . . . . . . . : 10.229.227.77 (Preferred) The subnet mask. . . . . . . . . . : 255.255.255.252 Default Gateway. . . . . . . . . : 10.229.227.78 DNS-servers. . . . . . . . . . . : 163.121.128.134 212.103.160.18 NetBios over TCP / IP. . . . . . . . : Disabled Tunnel adapter isatap. {737FF02E-D473-4F91-840E-2A4DD293FC12}: State of the environment. . . . . . . . : DNS Suffix. DNS-suffix for this connection. . . . . : Description. . . . . . . . . . . . . : Adapter Microsoft ISATAP # 3 Physical Address. . . . . . . . . 00-00-00-00-00-00-00-E0 DHCP is enabled. . . . . . . . . . . : No Autoconfiguration Enabled. . . . . . : Yes Tunnel adapter isatap. {EF585226-5B07-4446-A5A4-CB1B8E4B13AC}: State of the environment. . . . . . . . : DNS Suffix. DNS-suffix for this connection. . . . . : Description. . . . . . . . . . . . . : Adapter Microsoft ISATAP # 4 Physical Address. . . . . . . . . 00-00-00-00-00-00-00-E0 DHCP is enabled. . . . . . . . . . . : No Autoconfiguration Enabled. . . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface: DNS-suffix for this connection. . . . . : Description. . . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . 00-00-00-00-00-00-00-E0 DHCP is enabled. . . . . . . . . . . : No Autoconfiguration Enabled. . . . . . : Yes IPv6-address. . . . . . . . . . . . : 2001:0:4137:9 e76: ea: b77: f51a: 1cb2 (Basically d) Local IPv6-address channel. . . : Fe80:: ea: b77: f51a: 1cb2% 16 (Preferred) Default Gateway. . . . . . . . . ::: NetBios over TCP / IP. . . . . . . . : Disabled C: \ Users \ Oleg> route print ================================================== ========================= List of interfaces 26 ... 00 05 9a 3c 78 00 ...... Cisco Systems VPN Adapter 23 ... 58 2c 80 13 92 63 ...... Vodafone Mobile Broadband Network Adapter (Huawei) 1 ........................... Software Loopback Interface 1 19 ... 00 00 00 00 00 00 00 e0 Adapter Microsoft ISATAP # 3 20 ... 00 00 00 00 00 00 00 e0 Adapter Microsoft ISATAP # 4 16 ... 00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface ================================================== ========================= IPv4 Route Table ================================================== ========================= Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 10.229.227.78 10.229.227.77 296 10.0.0.0 255.0.0.0 On-link 10.53.127.204 286 10.6.93.21 255,255,255,255 10.0.0.1 10.53.127.204 100 10.13.50.12 255,255,255,255 10.0.0.1 10.53.127.204 100 10.53.8.0 255.255.252.0 10.0.0.1 10.53.127.204 100 10.53.127.204 255.255.255.255 On-link 10.53.127.204 286 10.53.128.0 255.255.248.0 10.0.0.1 10.53.127.204 100 10.53.148.0 255,255,255,240 10.0.0.1 10.53.127.204 100 10.53.148.16 255,255,255,240 10.0.0.1 10.53.127.204 100 10.229.227.76 255.255.255.252 On-link 10.229.227.77 296 10.229.227.77 255.255.255.255 On-link 10.229.227.77 296 10.229.227.79 255.255.255.255 On-link 10.229.227.77 296 10.255.255.255 255.255.255.255 On-link 10.53.127.204 286 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 192.168.147.0 255,255,255,240 10.0.0.1 10.53.127.204 100 192.168.147.96 255,255,255,240 10.0.0.1 10.53.127.204 100 192,168,147,112 255,255,255,240 10.0.0.1 10.53.127.204 100 192,168,147,128 255,255,255,240 10.0.0.1 10.53.127.204 100 192,168,147,144 255,255,255,240 10.0.0.1 10.53.127.204 100 192,168,147,224 255,255,255,240 10.0.0.1 10.53.127.204 100 192.168.214.0 255.255.255.0 10.0.0.1 10.53.127.204 100 192.168.215.0 255.255.255.0 10.0.0.1 10.53.127.204 100 194.247.133.19 255,255,255,255 10.0.0.1 10.53.127.204 100 213,247,231,194 255,255,255,255 10.229.227.78 10.229.227.77 100 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 10.229.227.77 296 224.0.0.0 240.0.0.0 On-link 10.53.127.204 286 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 10.229.227.77 296 255.255.255.255 255.255.255.255 On-link 10.53.127.204 286 ================================================== ========================= Persistent Routes: None IPv6 Route Table ================================================== ========================= Active Routes: If Metric Network Destination Gateway 16 58:: / 0 On-link 1306:: 1 / 128 On-link 16 58 2001:: / 32 On-link 16 306 2001: 0:4137:9 e76: ea: b77: f51a: 1cb2/128 On-link 16 306 fe80:: / 64 On-link 26 286 fe80:: / 64 On-link 16 306 fe80:: ea: b77: f51a: 1cb2/128 On-link 26 286 fe80:: c073: 41b2: 852f: eb87/128 On-link 1306 ff00:: / 8 On-link 16 306 ff00:: / 8 On-link 26 286 ff00:: / 8 On-link ================================================== ========================= Persistent Routes: None C: \ Users \ Oleg>

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  • Why PC reboots when there’s a power failure even with UPS?

    - by Jamil
    I've purchased a Line Interactive UPS 1200VA. It's supposed to give 8~20min backup (as written in the manual). This UPS has transfer time < 10ms. It works fine when the mains is active. But the problem is that when the power went off, the PC also went off for a fraction of a second and started rebooting. The strangest thing though is that it has to be a proper power failure by the service supplier. If I just turn off the power at the wall plug, the UPS kicks in immediately and the PC carries on working fine. What's the solution of that? What should I do? My hard drive was physically damaged because of improper shut down & restart. I've 5~8 times power outage in my country so I badly need an UPS.

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  • Even googling not allowed ? Why ?

    - by sagar
    Please read message bellow. Access has been denied 127.0.0.1! Access to the page: http://www.google.co.in/search?hl=en&client=firefox-a&hs=F58&rls=org.mozilla%3Aen-US%3Aofficial&q=email+us&meta=&aq=f&aqi=g10&aql=&oq=&gs_rfai= ... has been denied for the following reason: Weighted phrase limit exceeded. By reading above message, you can easily understand that - it's a firewall message. I also know that. The problem is "Firewall" is allowing any kind of googling. But when I google "email us" - above message is displayed. My question is why does this happen ? ( means - why googling not allowed on this words ? ) ( Please don't tell that - contact your system administrator. ) What does this mean - Weighted phrase limit exceeded. ? sagar.

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  • Why doesn’t windows explorer show my removable / USB drive even though the command prompt does?

    - by Gishu
    I'm running WinXP SP2. Around 50% of the time, when I slot in my USB drive. Windows explorer refuses to show the drive. If I click on the Safely remove hardware icon on the tray, I can see a menu item for the drive - say drive G: (the light on the USB drive is also on) If I type in G: into the address bar of explorer, it says 'Cannot find...' If I type in G: into a command prompt window, it works and I can do a dir to see the list of directories on the drive. To fix this, I've to remove-reinsert the pen-drive. But doing it every day is annoying. Also this happens only on this machine.. I use this drive on my home machine and it works flawlessly each time. Can anyone suggest things that I could try ? Thanks for reading...

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  • XDEBUG/PHP doesn't dump profile even when set up properly?

    - by John D.
    I installed xdebug from source, but also tried my package manager (separately) and they both are loaded correctly (verified by restarting Apache and seeing the xdebug copyright info in phpinfo()) but they do not dump profiling information. Out of the 40 different attempts of configuration it logged once or twice but I lost what I did, I tried with first only loading the module in php.ini with no settings, but it didn't log to /tmp/. I tried many different settings but my current is now: xdebug.profiler_enable = Off xdebug.profiler_enable_trigger = 1 xdebug.profiler_output_dir = "/tmp/" xdebug.profiler_output_name = "profiler.%t" Of course I call my script through 127.0.0.1/test.php?XDEBUG_PROFILE, which is for enable_trigger. Do you know why it would not dump profiler information? nobody (Arch Linux) can write to /tmp/ as it has before, so I'm sure it is not a permissions error. Apache's error_log does not tell me anything about xdebug either, as it has loaded correctly. It just does not "work"! EDIT: I made a subfolder "xdebug_profiles" in /tmp/ and chown'ed it to nobody, and now it works flawlessly. I'm not sure why it couldn't write before, I guess it's just a caveat with nobody on Arch. I answered my own question , not enough points to answer it or comment, so consider this answered.

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  • Fedora 12 How to Force a Display to Load on Boot even when no Monitor is Attached

    - by key
    When booting Fedora 12 with no monitor connected, if I connect a monitor later it gives a no signal error. I think it is set to auto-detect if a monitor is connected or not and load a display based of that. Since it initially detects no monitor no display is loaded. What I would like to do is have it act as if a monitor was always connected and provide the display signal always. I don't know if this is the issue or not but if you know how I might be able to fix this issue so that I can connect a monitor whenever I feel like it without having to restart that would be best. Thanks for the help! :D

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  • Scratched DVD keeps freezin when copying files, even with programs.

    - by Murtez
    Hi, I have a dvd with some family photos that is scratched, the problem is that when i try to copy stuff it reaches certain points and freezes, i'm assuming its the scratches / corrupt data. I've been trying several programs that are supposed to copy corrupt files from damaged media regardless, but they keep freezing when they reach the same points, so no different when with windows. Is there a way to fix the DVD? Or a really really good program that can do that without freezing / allowing windows to freeze? Please help, I don't have any copies of the photos and they are irreplaceable.

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  • Does WebDAV even work on IIS 7? I say nay

    - by FlavorScape
    I've tried every configuration from the top 10 stack overflow and server fault results for WebDAV 405 on IIS (for verb PROPFIND and PUT). I'm running server 2008 SP2. Followed all the instructions here. I'm no stranger to configuring servers. This has gotten nowhere after 8 hours. Confirmed system.webserver in applicationhost.config: <add name="WebDAV" path="*" verb="PROPFIND,PROPPATCH,MKCOL,PUT,COPY,DELETE,MOVE,LOCK,UNLOCK" modules="WebDAVModule" resourceType="Unspecified" requireAccess="None" /> Port 443 with basic auth, same issue. Tried port 80 with windows auth. Broken. (405) Windows authentication. Check. Added authoring rules for default site and application. Check. Not the firewall. Check. added "Desktop Experience" role feature Tried HTTPS with Basic Authentication on port 443. Does not work. No other services are running like Sharepoint. Check. confirmed user has read/write NT level permissions for the folder/virtual dir tried net use * http://localhost /user:MYDOMAIN\me myPass get error 1920, if I don't authenticate I get error 67 confirmed I'm not applying filtering to WebDAV: <requestFiltering> <fileExtensions applyToWebDAV="false" /> <verbs applyToWebDAV="false" /> <hiddenSegments applyToWebDAV="false" /> 405 - HTTP verb used to access this page is not allowed. The page you are looking for cannot be displayed because an invalid method (HTTP verb) was used to attempt access. SHOULD I JUST GIVE UP? Other questions that helped none: 405 - ‘Method not Allowed’ adding service hosted in IIS7 webdav on iis7.5 - simply cannot make it work http://studentguru.gr/b/kingherc/archive/2009/11/21/webdav-for-iis-7-on-windows-server-2008-r2.aspx

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  • Avast Antivirus downloading data from net even when told not to update.

    - by Nathan W
    Hi all, This is a strange problem that I have never seen before. I have two machines, both running Win 7 and running the latest version of Avast, both seem to be downloading large amounts of data. I noticed it when we were using more data for our monthly limit then normal, 2gb+ in a couple of days when really only browsing. I installed NetLimiter and let it run for couple of hours and this is the result for the avast! Service (c:\program files\alwil software\avast5\avastsvc.exe ). The other computer downloaded twice as much data in the same amount of time. Both installs of avast have their automatic updates (turned off at 4:00pm), for both program and definitions. Does anyone know what might be going on here.

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  • Why doesn’t windows explorer show my removable / USB drive even though the command prompt does ?

    - by Gishu
    I'm running WinXP SP2. Around 50% of the time, when I slot in my USB drive. Windows explorer refuses to show the drive. If I click on the Safely remove hardware icon on the tray, I can see a menu item for the drive - say drive G: (the light on the USB drive is also on) If I type in G: into the address bar of explorer, it says 'Cannot find...' If I type in G: into a command prompt window, it works and I can do a dir to see the list of directories on the drive. To fix this, I've to remove-reinsert the pen-drive. But doing it every day is annoying. Also this happens only on this machine.. I use this drive on my home machine and it works flawlessly each time. Can anyone suggest things that I could try ? Thanks for reading...

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