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  • C++ iostream not setting eof bit even if gcount returns 0

    - by raph.amiard
    Hi I'm developping an application under windows, and i'm using fstreams to read and write to the file. I'm writing with fstream opened like this : fs.open(this->filename.c_str(), std::ios::in|std::ios::out|std::ios::binary); and writing with this command fs.write(reinterpret_cast<char*>(&e.element), sizeof(T)); closing the file after each write with fs.close() Reading with ifstream opened like this : is.open(filename, std::ios::in); and reading with this command : is.read(reinterpret_cast<char*>(&e.element), sizeof(T)); The write is going fine. However, i read in a loop this way : while(!is.eof()) { is.read(reinterpret_cast<char*>(&e.element), sizeof(T)); } and the program keeps reading, even though the end of file should be reached. istellg pos is 0, and gcount is equal to 0 too, but the fail bit and eof bit are both ok. I'm running crazy over this, need some help ...

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  • [C] converting Bit Field to int

    - by shaharg
    Hi, I have bit field declared this way: typedef struct morder { unsigned int targetRegister : 3; unsigned int targetMethodOfAddressing : 3; unsigned int originRegister : 3; unsigned int originMethodOfAddressing : 3; unsigned int oCode : 4; } bitset; I also have int array, and i want to get int value from this array, that represents the actual value of this bit field (which is actually some kind of machine word that i have the parts of it, and i want the int representation of the whole word). Thanks a lot.

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  • How to insert zeros between bits in a bitmap?

    - by anatolyg
    I have some performance-heavy code that performs bit manipulations. It can be reduced to the following well-defined problem: Given a 13-bit bitmap, construct a 26-bit bitmap that contains the original bits spaced at even positions. To illustrate: 0000000000000000000abcdefghijklm (input, 32 bits) 0000000a0b0c0d0e0f0g0h0i0j0k0l0m (output, 32 bits) I currently have it implemented in the following way in C: if (input & (1 << 12)) output |= 1 << 24; if (input & (1 << 11)) output |= 1 << 22; if (input & (1 << 10)) output |= 1 << 20; ... My compiler (MS Visual Studio) turned this into the following: test eax,1000h jne 0064F5EC or edx,1000000h ... (repeated 13 times with minor differences in constants) I wonder whether i can make it any faster. I would like to have my code written in C, but switching to assembly language is possible. Can i use some MMX/SSE instructions to process all bits at once? Maybe i can use multiplication? (multiply by 0x11111111 or some other magical constant) Would it be better to use condition-set instruction (SETcc) instead of conditional-jump instruction? If yes, how can i make the compiler produce such code for me? Any other idea how to make it faster? Any idea how to do the inverse bitmap transformation (i have to implement it too, bit it's less critical)?

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  • 64 bit COM(ActiveX) server

    - by Velja Radenkovic
    Hello, I have activex server exe that was building and registering fine on 32bit OS. I wanted to make 64 bit version of that exe by upgrading project to Visual Studio 2010 and changing platform to X64 which apparently doesn't work. Application itself works but I don't see it registered after running That.exe /RegServer I would appreciate any usable advice on migrating activex from 32 to x64. Code that is processing /RegServer param is below: if(lstrcmpi(lpszToken, _T("RegServer")) == 0) { _Module.UpdateRegistryFromResource(IDR_OUTDISKSARG, TRUE); nRet = _Module.RegisterServer(TRUE); bRun = false; break; } 32 bit activex is unuable for me since I have to load it in x64 .NET process.

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  • app.config and 64-bit machines

    - by Dale Lutes
    I have an app that works fine on 32-bit systems, but fails on XP 64 bit systems. I've tracked it down to the connection string defined in my app.config thus: <connectionStrings> <clear/> <add name="IFDSConnectionString" connectionString="Data Source=fdsdata;Initial Catalog=IFDS; Trusted_Connection=true;Connect Timeout=0" providerName="System.Data.SqlClient" /> </connectionStrings> When I try to reference it in code, I find that the ConfigurationManager.ConnectionStrings collection only contains the LocalSqlServer connection string from the machine.config file and not my custom string. Another oddity is that it works fine when I run the app out of Visual Studio. It is only when I run out of the release folder that the connection string does not get defined. The application's .exe.config file is there in the release folder along with the .exe file and is up to date.

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  • Compiling zlib for 64 bit on windows

    - by Allan Hollenberg
    I am currently working on a cross-platform game for Mac OSX and Windows and I'm having some issues with the ZLib library on Windows 64 bit. My game is focussed on a 64 bit architecture and I am unable to get ZLib to work along with it. When I compile ZLib itself (through make all64 at the source directory of ZLib) it shows no issues but when I want to use it I get a error saying '/usr/local/lib/libz.a(gzread.o):gzread.c:(.text+0x28e): undefined reference to `__errno'' I have included errno.h before I include zlib.h in my project but that doesn't seem to matter. I am compiling my app through the cygwin64 terminal and using the x86_64-w64-mingw32-g++ command, I am also linking directly against the lib64 version (if I remove that it compiles correctly but crashes on running due to it having a x86 lib)

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  • regular expression for bit strings with even number of 1s

    - by equilibrium
    Let L= { w in (0+1)* | w has even number of 1s}, i.e. L is the set of all bit strings with even number of 1s. Which one of the regular expressions below represents L? A) (0*10*1)* B) 0*(10*10*)* C) 0*(10*1)* 0* D) 0*1(10*1)* 10* According to me option D is never correct because it does not represent the bit string with zero 1s. But what about the other options? We are concerned about the number of 1s(even or not) not the number of zeros doesn't matter. Then which is the correct option and why?

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  • Dividing n-bit binary integers

    - by Julian
    Was wondering if anyone could help me with creating a pseudocode for how to go about dividing n-bit binary integers. Here is what I'm thinking could possibly work right now, could someone correct this if I'm wrong: divide (x,y) if x=0: return (0,0) //(quotient, remainder) (q,r) = divide(floor(x/2), y) q=2q, r=2r if x is odd: r = r+1 if r >= y: r = r-y, q = q+1 return (q,r) Would you guys say that this general pseudocode algorithm would accomplish the intended task of dividing n-bit numbers or am I missing something in my psuedocode before I start coding up something that's wrong?

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  • How to combine two 32-bit integers into one 64-bit integer?

    - by Bei337
    I have a count register, which is made up of two 32-bit unsigned integers, one for the higher 32 bits of the value (most significant word), and other for the lower 32 bits of the value (least significant word). What is the best way in C to combine these two 32-bit unsigned integers and then display as a large number? In specific: leastSignificantWord = 4294967295; //2^32-1 printf("Counter: %u%u", mostSignificantWord,leastSignificantWord); This would print fine. When the number is incremented to 4294967296, I have it so the leastSignificantWord wipes to 0, and mostSignificantWord (0 initially) is now 1. The whole counter should now read 4294967296, but right now it just reads 10, because I'm just concatenating 1 from mostSignificantWord and 0 from leastSignificantWord. How should I make it display 4294967296 instead of 10?

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  • Thread 0 crashed with X86 Thread State (32-bit): in cocoa Application

    - by John
    I am doing crash fixing in an osx application .The crash report shows Date/Time: 2012-05-01 16:05:58.004 +0200 OS Version: Mac OS X 10.5.8 (9L31a) Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x00000000545f5f00 Crashed Thread: 8 Thread 8 crashed with X86 Thread State (32-bit): eax: 0x140e0850 ebx: 0x00060fc8 ecx: 0x92df0ec0 edx: 0xc0000003 edi: 0x545f5f00 esi: 0x140e0870 ebp: 0xb0445988 esp: 0xb0445964 ss: 0x0000001f efl: 0x00010206 eip: 0x92dca68c cs: 0x00000017 ds: 0x0000001f es: 0x0000001f fs: 0x0000001f gs: 0x00000037 cr2: 0x545f5f00 How to tares the application code with this report? what is Thread 0 crashed with X86 Thread State (32-bit)? if anybody know please help me. Thanks in advance.

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  • Install Additional Printer Drivers (x86) on Vista (x64) - Can't find suitable (x86) ntprint.inf

    - by jmohr
    I have a printer connected to my computer that I'd like to share on my home network - shouldn't be a problem. The computer the printer is connected to is running Vista Ultimate x64. The computers I'm trying to share with are x86 Windows XP Professional and x86 Vista, so I need to install additional (x86) drivers. I checked the box to add x86 printer drivers and then it asked for the location of the drivers. I browsed to the location and clicked OK. It then prompted "Please provide path to Windows media (x86 processor). When I click "Browse..." it wants the location of a file named ntprint.inf It looks like it's asking for a Windows (x86) installation disk. I put one in but I can't seem to find this file on the 32-bit Vista install disk Where is the proper place to find this file?

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  • CheckPoint SecuRemote / SecureClient on Vista 64

    - by cliff.meyers
    According to this page, CheckPoint's SecuRemote client is not supported on Vista 64: https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit%5FdoGoviewsolutiondetails=&solutionid=sk36681 Unfortunately in working with the systems team they will not confirm if the other two clients (SSL Network Extender or Endpoint Connect) are supported by their environment. Does anyone know if it would be possible to do the following? Install VMware Workstation on my Vista 64 system (host) install a Vista 32-bit OS in a virtual machine (guest) Install SecuRemote VPN client within the guest (Vista 32) Get my Vista 64 machine (host) to use the VPN connection from the guest Any other ideas are more than welcome.

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  • Biztalk Server 2006 64bit problem

    - by WtFudgE
    Hi, I am trying to install a 64-bit biztalk server 2006. However when I start my installation it asks if I want to get my .cab file from the internet or install it manually etc. Because of internet security issues here at our work we can't get it from the internet directly. So I downloaded it manually: BtsRedistW2k3EN64.cab, to be exact. However when I try to install this it complains about: This installation package is not supported by this processor type. Contact your product vendor. I opened the cab file and found out that the file: SQLServer2005_ADOMD.msi was apparently the problem. So I thought I'd install the 64bit version of this msi then: SQLServer2005_ADOMD_x64.msi, however I get the same error. So atm I'm pretty stuck. Anyone have any ideas? Thanks a lot

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  • can't listen to tips on bill Jelen podcast disc

    - by Bob
    Hi all, appreciate any suggestions you can offer. Am using windows 7-64 bit--have the bill Jelen disc with his podcasts on it. Can open the disc, select the podcast I want to listen to -it shows up on my screen but there seems to be no place to click to have the podcast acutally start running. Have used this disc before with xp and windows-not 64- and had no problem- would just click on the podcast and it would start to play. Would try on my other computer that it worked on but that computer is dead. Any ideas?? thanks

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  • ASUS P6X58D and 12 GB of RAM

    - by Hunter
    I just assembled my new PC and it screams, BUT it's only recognizing 8 GB of RAM in BIOS and OS rather than the installed 12 GB. In the BIOS the RAM was registering at 1066 MHz so I set it to 1600 MHz. I updated the BIOS to the latest non-beta release. http://www.asus.com/product.aspx?P_ID=wurRaDZ8lo4Ckukj OS: Windows 7 Ultimate 64-bit Motherboard: ASUS P6X58D Premium CPU: Intel Core i7 920 RAM: CORSAIR XMS3 12 GB (6 x 2 GB) 240-Pin DDR3 SDRAM DDR3 1600 HDD: Intel 80 GB SSD SATA II Power supply: Kingwin 1000 W Modular I've installed the Beta BIOS 0808 but no luck!

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  • Need help creating advanced context menu command in Windows 7 (x64)

    - by Craig
    I found out about ForceBindIP and I really love it, so much that I am using it regularly enough to where spamming the same command prompt over and over again is getting painful. Here's ForceBindIP and what it does: http://www.r1ch.net/stuff/forcebindip/ I'm on a 64-bit of Windows 7 Home Premium. What I want to do is add a right-click context menu item so that when I browse items in Windows Explorer, or on my desktop, I can automate a ForceBindIP command (through the prompt). I am permanently connected to two networks: one over ethernet, and one over wireless. My ethernet network takes priority. What I want to do is add a "Run through wireless network" context menu item, that will send the item through this command: ForceBindIP {5F657824-9E3B-46E5-C21E-F52585R6457E} "[path to right-clicked file here]" It will need to run that command in C:\Windows\SysWOW64. I've no experience at all playing with the Windows registry or writing batch files, anything of that sort. I was wondering if anyone here would be kind enough to assist me?

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  • IE "About:Tab" page hijacked

    - by tcv
    Hey folks, Client o' mine, running Windows 7 64-bit, installed Kiwee Toolbar and then uninstalled it. The software is pretty much gone except for one last thing: The About:Tab IE page redirects to a Kiwee search page. I have temporarily disabled the "New Tab" page via Internet Explorer's options, but it annoys me. I have scanned with multiple tools. Spyware Doctor purports to removed it, but they want money to remove it. I would buy it -if- I could be certain it would fix the problem. I've also searched the registry and the filesystem for instances of the program, plus I've removed Kiwee manually via the many manual uninstalls out there. IE's AboutURLs registry entry still points to res://ieframe.dll/tabswelcome.htm and if I enter that URL into IE, the correct New Tab page comes up. Any help appreciated.

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  • Unable to sync the Zune software with my HTC HD7

    - by Varpi
    I have a brand new HTC HD7 with Windows Phone 7, with no Software installed. I am running on Windows 7 64 bit. Whenever I try to sync my Mobile Device with Zune- I get this message: Can't connect to your phone. Disconnect it, restart it, then try connecting again I've downloaded latest Zune software and all updates. I don't have any certificates on my personal certificates. My phone is listed under Portable devices in Device manager (It shows as phone with driver version 4.7.965.0). I've restarted both my computer and the mobile device few times. I tried unlocking the device during the Zune sync Any ideas as to how I can sync my phone ?

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  • Boot Vista x64 with both ICH8 and ICH10 AHCI support

    - by adurity
    I have a situation where I need to boot Windows Vista 64-bit from both a ICH10 and ICH8 AHCI SATA controller. Currently, it is setup to boot from the ICH10, but when I try booting with the ICH8, I get the famed Windows STOP 7B BSOD. How can I add the ICH8 driver so that I can work around this BSOD and boot the system? I have updated to the latest Intel AHCI driver (8.9.0.1023 as of this post) which is supposed to support both chipsets, but I feel I am missing something.

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  • vista winsxs folder eats disk space

    - by Simpzon
    My machine has been running Vista Ultimate 64-Bit for about two years now. ServicePacks SP1 and SP2 are installed, too. The system partition has a size of 55 GB, which should be quite comfortable under normal circumstances, but about 40GB (no typo) are used by the Windows-Folder, especially the subfolder winsxs, which takes about 35 GB. I have already uninstalled as many programs as possible and did run compcln.exe, to reduce it, but this only gained 2-3 GB. What can I do to clean up without risking system stability? I'm a software developer and this is my daily work environment, which means - I can't risk to get strange side-effects from blindly deleting stuff. - You can maybe deduce some typical usage patterns from this information. Any suggestions?

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  • Asus P6X58D & 12GB of RAM

    - by Hunter
    I just assembled my new PC and it screams, BUT it's only recognizing 8GB of ram in BIOS and OS rather than the installed 12GB. In the BIOS the RAM was registering at 1066 so I set it to 1600MHz. I update the BIOS to the latest non-beta release. http://www.asus.com/product.aspx?P_ID=wurRaDZ8lo4Ckukj OS = Windows 7 Ultimate 64-bit Mobo = Asus P6X58D Premium CPU = Intel Core i7 920 RAM = CORSAIR XMS3 12GB (6 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 HDD = Intel 80GB SSD SATA II PS = Kingwin 1000W Modular I've installed the Beta BIOS 0808 but no luck!

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  • Why is windows 7 marking all my extra RAM as "hardware reserved"?

    - by pinkmuppet
    I have a new HP Z800 Workstation, running Windows 7 Enterprise 64 bit. The machine has 4GB of RAM -- windows reported 1.99GB available, 2GB was "hardware reserved". I added another 2 GB and windows reports that there is 6GB of physical RAM, but now 4GB is "hardware reserved". The BIOS sees the full RAM amount as well. The video card is an nVida Quadro FX 580, so it shouldn't be using any shared memory at all. whats going on? Z800 Specs are here.

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