bit shortener

One byte has 8 bits, so the 32-bit int occupies 32-bit/8-bit = 4-byte, and 64-bit int uses 64-bit/8-bit = 8 bytes. 32-bit, 64-bit unsigned

Advantages and disadvantages of 32-bit and 64-bit systems A 64-bit system can access a large memory address space exceeding 4GB, which can only access 4GB of memory addresses compared to 32-bit systems. The performance of the 64-bit system is improved, because the CPU has

To see whether a Linux machine is a 32-bit or 64-bit method:File/sbin/init or File/bin/ls/sbin/init:elf 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for Gnu/linux 2.6. Stripped,If the display 64-bit is 64 bits;File/sbin/init/sbin/init:elf 32-

One[ROOT@LINUXZGF ~] #getconf long_bit[ROOT@LINUXZGF ~] #getconf word_bit(the int and long types in a 32-bit system are generally 4 bytes, and the int type in the 64-bit system is still 4 bytes, but LONG has become a 8-byte inux "getconf word_bit" and "getconf long_bit" are available in the system Gets the number of digits for word and long. 64-bit systems should

The server installed by the company is a 64-bit 2003 system that runs in the form of a 32-bit IIS6.With Windows Server 2003TM Service Pack 1,iis 6.0, you can run 32-bit WEB applications using the windows-32-on-windows-64 (WOW64) compatibility layer on 64-bit Windows. IIS 6.0 uses WOW64 to run 32 personal product applic

There are many friends for the first time using 16-bit color display will encounter how to convert 24-bit RGB color to the corresponding 16-bit RGB color problem, through the relevant information, write a translation of the principle of it, I hope it will be helpful to everyone.We know that 24-bit RGB is made up of 8-

Linux, file permissions in addition to read, write, execute, there is a mandatory bit and the special privilege of the adventure bitThe permissions for the files in Linux are as follows (the directory in Linux is also a file):Force/Adventure | User | Group | Other =========================================== SST rwx rwx rwxHere's an explanation of the mandatory and adventure bits.Mandatory bits are: setuid and setgid, m

　　Difference one, the requirements for configuration are different 64-bit operating systems can only be installed on 64-bit computers (the CPU must be 64 bits), and 64-bit common software needs to be installed to perform the best performance of 64-bit (x64), and 32-bit oper

how the win7-64 open file sharing in the bit systemSet in XPsharedMethod settings for the fileWin7After discovering that 2003 of the system cannot accessWin7OfsharedPapers, and it took a while to finally work out a result.sharedThis is the step of my practice, do not throw bricks1. Control Panel. Network andsharedCenter, local connection, properties, guaranteed filesharedThe agreement.2. Control Panel. Network andsharedCenter, select * * Group andshar

Win7 system has many versions, Home Edition, Advanced Edition, flagship edition, and today we are talking about the Win7 flagship system 64-bit and 32-bit difference; Regardless of the Win7 system, WIN8 system, Server 2003, and even XP systems have 32 and 64-digit points. Since the Win7 system is now the mainstream of the computer operating system, today we focus on the Win7 system 32-

You can use the command "getconf long_bit" To view if the returned result is 32, the description is 32 bits, and the result returned is 64, the description is 64 bits. You can also use the command "uname-a" To view, the output of the results, if there is x86_64 is 64-bit, not 32-bit.A few ways to see how many bits Linux is: Check whether the Linux machine is a 32-bit or 64-

Summarize and summarize the Linux system is a 32-bit or 64-bit methods, a lot of content from online netizens blog. This article is just to tidy up, comb this knowledge, easy to forget the time to check at any time.Method 1:getconf long_bit ViewAs shown in the following example: 32-bit Linux systems show 32, 64-bit Lin

Apple officially will not allow the submission of arm64 applications on February 1, 2015, which is a Damocles sword for those of us who develop mobile applications. I wrote an article in front of how apps on iOS are compatible with 32-bit systems and 64-bit systems, but that's still an armchair stage, not in combat. By January 2015, I finally started the arm64 upgrade of the app after the app submitted a ne

The question at the beginning of programming is as follows: How to Use bitwise logical operations (such as And, Or, shift) to implement bitwise vectors? 1. What is a bit vector? In many cases (for example, if an object meets or does not meet a certain nature), it is sufficient to use a binary bit to represent an object. However, you cannot use a variable name to directly represent a single

How to check whether Oracle32-bit or 64-bit (x86orx64 ). How to check whether Oracle is 32-bit or 64-bit (x86 or x64 ). How to check whether Oracle is 32-bit or 64-bit (x86 or x64 ). Method 1: Use sqlplus ### 64-

C + + simply defines the relationships between these basic data types, and does not define the word length that strictly defines them. On different platforms, depending on the compiler's implementation, their word lengths are shown in the following table: Data type LP64 ILP64 LLP64 ILP32 LP32 Char 8 8 8 8 8 Short 16 16 16 16 16 _int32 N/A 32 N/A N

View 32-bit or 64-bit method in XP system 1th Step: Click to open the Start menu and find My Computer in the Start menu and right-select the properties on the My Computer icon. Computer Repair Technology Network Note: In addition to general My Computer icon, on the desktop will also have, directly on the desktop My Computer icon right-click the property is the same effect. 2nd step: In the System Propert

To determine whether UNIX systems and library files are 32-bit or 64-bit detailed First, view system 32 or 64-bit system Bootinfo-y View the number of hardware bitsBootinfo-k View kernel digits Second, view the library file is 32-bit or 64-bit 1. Use the file command Li

The origin of the problem Cross-compilation is very important (should be said to be necessary) for embedded development, but the recent use of cross-compilation tools on physical Linux machines has often encountered a problem: the cross-compile tool version is correct, the installation steps are correct, and the environment variable is set correctly, but it is running ARM-LINU-GCC- V has been reported bash:/OPT/ARM-2009Q3/BIN/ARM-LINUX-GCC: No error in the file or directory, is very depressing,

AOP is required in the project using the Runkit module, but the development environment for the team members is Windows, and the Runkit module does not provide DLL extensions in the Windows environment and compiles itself only.The following is a summary of the compilation process. (Operating system environment for Windows 10 64-bit Chinese flagship edition) Compiled version of PHPThe version here refers not to the release version of PHP, such as 5