What does >> mean in PHP?
- by user198729
echo 50 >> 4;
Output:
3
Does anyone know why it outputs 3?
Search Results
Search found 19795 results on 792 pages for '8 bit'.
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Why is abs(0x80000000) == 0x80000000?
- by sigjuice
I just started reading Hacker's Delight and it defines abs(-231) as -231. Why is that? I tried printf("%x", abs(0x80000000)) on a few different systems and I get back 0x80000000 on all of them.Read the article
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Why does the right-shift operator produce a zero instead of a one?
- by mrt181
Hi, i am teaching myself java and i work through the exercises in Thinking in Java. On page 116, exercise 11, you should right-shift an integer through all its binary positions and display each position with Integer.toBinaryString. public static void main(String[] args) { int i = 8; System.out.println(Integer.toBinaryString(i)); int maxIterations…Read the article
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Proper way to handle issue when porting 32 to 64 bit. Conversion from DT1 to DT2 of greater size
- by grobartn
So I am trying to port 32 bit to 64 bit. I have turned on the VS2008 flag for detecting problems with 64 bit. I am trying following: char * pList = (char *)uiTmp); warning C4312: 'type cast' : conversion from 'unsigned int' to 'char *' of greater size Disregard the code itself. This is also true for any pointer, because 64 bit pointer is…Read the article
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Overwriting a range of bits in an integer in a generic way
- by porgarmingduod
Given two integers X and Y, I want to overwrite bits at position P to P+N. Example: int x = 0xAAAA; // 0b1010101010101010 int y = 0x0C30; // 0b0000110000110000 int result = 0xAC3A; // 0b1010110000111010 Does this procedure have a name? If I have masks, the operation is easy enough: int mask_x = 0xF00F; // 0b1111000000001111…Read the article
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Is It Worth Using Bitwise Operators In Methods?
- by user1626141
I am very new to Java (and programming in general, my previous experience is with ActionScript 2.0 and some simple JavaScript), and I am working my way slowly and methodically through Java: A Beginner's Guide by Herbert Schildt. It is an incredible book. For one thing, I finally understand more-or-less what bitwise operators (which I first…Read the article
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what is c/c++ equivalent way of doing '>>>' as in java (unsigned right shift)
- by changed
Hi I wanted to know how i can do '' shifting of java in c/c++. thanksRead the article
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How do I unpack bits from a structure's stream_data in c code?
- by Chelp
Ex. typedef struct { bool streamValid; dword dateTime; dword timeStamp; stream_data[800]; } RadioDataA; Ex. Where stream_data[800] contains: **Variable** **Length (in bits)** packetID 8 packetL 8 versionMajor 4 versionMinor 4 radioID 8 etc.. I need to write: void unpackData(radioDataA…Read the article
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Getting the fractional part of a float without using modf()
- by knight666
Hi, I'm developing for a platform without a math library, so I need to build my own tools. My current way of getting the fraction is to convert the float to fixed point (multiply with (float)0xFFFF, cast to int), get only the lower part (mask with 0xFFFF) and convert it back to a float again. However, the imprecision is killing…Read the article
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Rotating bits of any integer in C
- by Tim
Pass a integer 2 to this function and then return a integer which is 4 x = 2; x = rotateInt('L', x, 1); (left shift the bits by 1) Example: 00000010 - rotate left by 1 - 00000100 but if I pass this: x = rotateInt('R', x, 3); it will return 64, 01000000 Here is the code, can someone correct the error... thanks int…Read the article
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How to tell if Microsoft Works is 32 or 64 bit? Please Help!
- by Bill Campbell
Hi, I am trying to convert one of our apps to run on Win7 64 bit from XP 32 bit. One of the things that it uses is Excel to import files. It's a little complicated since it was using Microsoft.Jet.OLEDB.4.0 (Excel). I found Office 14 (2010) has a 64bit version I can download. I downloaded Office 2010 Beta but it didn't seem…Read the article
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How do I know my laptop is 64 bit compatible?
- by c.sokun
I recently plan to buy a new laptop to run 64 bit OS, but I friend told me that my current laptop is 64 bit but I am not sure how do I verify if my laptop is ready to load 64 bit OS? Here is the result from cpuz edit: come say something at less if you want to vote this down :)Read the article
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Can I run virtualized 64-bit Operating Systems if my CPU doesn't support VT-X?
- by tintinmj
I have installed VMWare 10.0 workstation on my Compaq CQ60-615DX laptop. The Operating System is Windows 7 Home Premium. When I tried to run Ubuntu 14.04 64-bit in a virtual machine in VMWare I get an error saying: This virtual machine is configured for 64-bit guest operating systems. However, 64-bit operation is not…Read the article
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How can install scripts determine which are the correct equivalents for /usr/lib for 32- and 64-bit libraries?
- by Randalli
I have an SDK that must install 32-bit and 64-bit files in the correct places under /usr/lib for a variety of Linux distributions. For example, it appears that for Fedora, /usr/lib64 is the 64bit lib, but for Debian based systems, /usr/lib is the 64bit directory. I want to find out if there is a reliable way to determine…Read the article
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Why is 64 bit Ubuntu not recomended for daily usage?
- by REA_ANDREW
I am just in the process of setting up a new laptop which came with Windows 7 64 bit installed. I am going to set it up to dual boot Windows 7 and Ubuntu. When I went to get the Ubuntu download I noticed that the 64 bit version is labelled with Not recomended for daily desktop usageNot recomended for daily desktop…Read the article
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Unable to install ubuntu on a AMD 64 bit system with a AMD Radeon HD 6670 graphics card
- by Tom Wingrove
I’ve been running a dual boot system (Ubuntu/Windows7) for two years or so with no problems. I recently built an AMD 64 Bit System, re-installed Windows but when I went to load Ubuntu inside Windows, hit a snag. The screen view during installation became small square blocks of colour, which obviously is a graphics drive…Read the article
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Where can I get 64 bit OLEDB and/or ADO.Net drivers for Sybase ASE?
- by Craig
I'm new to Sybase and so far it's a monumental pain just to connect to it! Where in the world can I get 64 bit drivers for Sybase ASE 15 so that I can connect from my 64 bit SQL 2008? Our Sybase servers are 32 bit and there are no 64 bit drivers on the media :(Read the article
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Where is my app.config for SSIS?
Sometimes when working with SSIS you need to add or change settings in the .NET application configuration file, which can be a bit confusing when you are building a SSIS package not an application. First of all lets review a couple of examples where you may need to do this. You are using referencing an assembly in a…Read the article
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Where is my app.config for SSIS?
Sometimes when working with SSIS you need to add or change settings in the .NET application configuration file, which can be a bit confusing when you are building a SSIS package not an application. First of all lets review a couple of examples where you may need to do this. You are using referencing an assembly in a…Read the article
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"Well, Swing took a bit of a beating this week..."
- by Geertjan
One unique aspect of the NetBeans community presence at JavaOne 2012 was its usage of large panels to highlight and discuss various aspects (e.g., Java EE, JavaFX, etc) of NetBeans IDE usage and tools. For example, here's a pic of one of the panels, taken by Markus Eisele: Above you see me, Sean Comerford from…Read the article
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I can't install libtiff on my 64-bit Ubuntu.
- by marwa
When I try to install libtiff on my 64-bit Ubuntu, I get the following error: sudo apt-get install libtiff Reading package lists... Done Building dependency tree Reading state information... Done Package libtiff is not available, but is referred to by another package. This may mean that the package is missing,…Read the article
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Development of 64-bit C/C++ applications. Lessons.
The course concerns development of 64-bit applications in C/C++ language and is intended for those developers who use Visual Studio 2005/2008/2010 environment.Read the article
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wireless LAN soft blocked on Ubuntu 13.10
- by iacopo
I've troubles with bluetooth and with lan. When I digit: rfkill list all 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: phy0: Wireless LAN Soft blocked: yes Hard blocked: no When I digit: lspci -v 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh)…Read the article
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XSLT: Splitting none continues Elements/Grouping continues Elements
- by Gerald
Hi! Need some help with this problem in implementing with Xslt, I had already implemented a java code of this one using sax parser but it is a troublesome due to customer request to change something... so we are doing it now using an XSLT with don't need to be compiled and deployed to a web server. I have an…Read the article
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Why is OpenSubKey() returning null on my Win 7 64 bit system?
- by BrMcMullin
Has anyone seen OpenSubKey() and other Microsoft.Win32 registry functions return null on 64 bit systems when 32 bit registry keys are under Wow6432node in the registry? I'm working on a unit testing framework that makes a call to OpenSubKey() from the .net library. My dev system is a Win 7 64 bit…Read the article
