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Stack Overflow：StackExchange网络不同主题网站的”祖父“ - 更多技术 - ...
...看了不少比较你们和Quora的图表，包括Alexa和Compete的统计数据，还曾就此与互联网统计公司Comscore交流过，你们在各方面都领先于Quora，那为什么Quora吸引的注意力这么多呢？
答：我喜欢Quora，但他们的业务与我们存在本质区别。...
NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...stom:
;不等于1就跳到这里来了。
Q 如何保留用户原来的数据
#reserve config file.
CreateDirectory "C:\Temp20150606151700\config"
CopyFiles "$INSTDIR\config\catconfig_w.ini" "C:\Temp20150606151700\config"
# Try to remove the install directory - this will only happ...
What is the smallest possible valid PDF?
...line, but Acrobat accepts Windows, Mac, or Unix conventions, so by using a hex editor, I replaced the \r\n with \r and removed the last newline altogether, which leaves me with 67 bytes
25 50 44 46 2D 31 2E 0D 74 72 61 69 6C 65 72 3C
3C 2F 52 6F 6F 74 3C 3C 2F 50 61 67 65 73 3C 3C
2F 4B 69 64 73 ...
How do I decode a string with escaped unicode?
... It looks like the regex is looking for a \u prefix and than a 4 character hex number (letters or numbers). How does the function in the replace method work?
– styfle
Oct 26 '11 at 1:42
...
Why does changing 0.1f to 0 slow down performance by 10x?
...15) | (1<<6) );
// Does both FTZ and DAZ bits. You can also use just hex value 0x8040 to do both.
// You might also want to use the underflow mask (1<<11)
Appears to work in both GCC and Visual Studio:
// Requires #include <xmmintrin.h>
// Requires #include <pmmintrin.h>
_M...
How can I extract embedded fonts from a PDF as valid font files?
...m
<<
/Length1 778552
/Length 1581435
/Filter /ASCIIHexDecode
>>
This pdf-parser.py output tells us that this object contains a stream (which it will not directly display) that has a length of 1.581.435 Bytes and is encoded ( == "compressed") with ASCIIHexEncode and ...
windows版 svn 服务器搭建及总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
svntest 很像一个文件夹 如下图，注意 红框，每个数据仓库都会包含自己的conf和db文件夹。
3.为svn分配用户权限
svn用户权限的配置可以到很精细的程度，自己去找资料看。这里只是很简单的略过。
svn 的权限管理涉...
Generating an MD5 checksum of a file
...f.read(4096), b""):
hash_md5.update(chunk)
return hash_md5.hexdigest()
Note: hash_md5.hexdigest() will return the hex string representation for the digest, if you just need the packed bytes use return hash_md5.digest(), so you don't have to convert back.
...
How can I unit test Arduino code?
...unsigned int i = 0; i < size; i++ ){
cout << setw(2) << hex << (unsigned int)buf[i] << " ";
}
cout << endl;
cout.flags(oldFlags);
cout.precision(oldPrec);
cout.fill(oldFill);
return size;
}
FakeSerial Serial;
and finally, the actual test program:...
浅析为什么char类型的范围是 -128~+127 - C/C++ - 清泛网 - 专注C/C++及内核技术
...时候把23位取出再加 1便可。
-128也是同样的原理，当数据总线从内存中取出的是1000 000 ，CPU会给它再添最高一位，变为1 1000 0000 这样才能转化为
-128输出，不然1000 0000 如何输出？这当然是我的一种推断，具体怎么实现还得...