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Why prefer two's complement over sign-and-magnitude for signed numbers?
...in order to represent -1 in binary, two's complement is used: flipping the bits and adding 1?
18 Answers
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Adding header for HttpURLConnection
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One addition for Java8 version : Base64 class is a little bit changed. Decoding should be done using: String basicAuth = "Basic " + java.util.Base64.getEncoder().encodeToString(userCredentials.getBytes());
– Mihailo Stupar
Jan 18 '18 at 10:53
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Determine function name from within that function (without using traceback)
....25ms, 1.24ms, 0.5us, 0.16us normal (nonpythonic :) ) seconds accordingly (win7x64, python3.5.1)
– Antony Hatchkins
Jan 5 '17 at 20:55
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'Microsoft.SqlServer.Types' version 10 or higher could not be found on Azure
...need to deploy the native assembly SqlServerSpatial110.dll. Both
x86 (32 bit) and x64 (64 bit) versions of this assembly have been
added to your project under the SqlServerTypes\x86 and
SqlServerTypes\x64 subdirectories. The native assembly msvcr100.dll is
also included in case the C++ runti...
C++ Best way to get integer division and remainder
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You cannot trust g++ 4.6.3 here with 64 bit integers on a 32 bit intel platform. a/b is computed by a call to divdi3 and a%b is computed by a call to moddi3. I can even come up with an example that computes a/b and a-b*(a/b) with these calls. So I use c=a/b and a-b...
Best way to resolve file path too long exception
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Here's a quote from the link:
Maximum Path Length Limitation In the Windows API (with some exceptions discussed in the following paragraphs), the maximum length
for a path is MAX_PATH, which is defined as 260 characters. A local
path is structured in the following order: drive letter, col...
Different floating point result with optimization enabled - compiler bug?
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Intel x86 processors use 80-bit extended precision internally, whereas double is normally 64-bit wide. Different optimization levels affect how often floating point values from CPU get saved into memory and thus rounded from 80-bit precision to 64-bit p...
Very large matrices using Python and NumPy
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Any chance you could expand your answer with a bit more clarity and some examples?
– Adam B
Jun 7 '18 at 18:08
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ros 基本调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...屏幕
2.1.4修改波特率（数据传输速率）
2.2KDBG
2.3GDB
2.4WINDBG
3.生成更多输出
3.1编译时开启verbosity功能
3.1.1 reactos类型
3.1.1.1加入我们自己的debug消息
3.1.2 wine的类型
3.2 运行时开启verbosity
3.3 进入内置的内核调试器
3.3.1 动态...
Downloading Java JDK on Linux via wget is shown license page instead
...nux-x64.rpm
In all cases above, subst 'i586' for 'x64' to download the 32-bit build.
-j -> junk cookies
-k -> ignore certificates
-L -> follow redirects
-H [arg] -> headers
curl can be used in place of wget.
UPDATE FOR JDK 7u79
TAR GZ:
wget --no-check-certificate --no-cookies --header...