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Can I use a binary literal in C or C++?

...gned short b = BOOST_BINARY( 10010 ); char buf[sizeof(b)*8+1]; printf("hex: %04x, dec: %u, oct: %06o, bin: %16s\n", b, b, b, itoa(b, buf, 2)); cout << setfill('0') << "hex: " << hex << setw(4) << b << ", " << "dec: " << dec << b &lt...
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What is the difference between shallow copy, deepcopy and normal assignment operation?

...o destination e.g: >>> i = [1,2,3] >>> j=i >>> hex(id(i)), hex(id(j)) >>> ('0x10296f908', '0x10296f908') #Both addresses are identical Now i and j technically refers to same list. Both i and j have same memory address. Any updation to either of them will be ref...
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Java String to SHA1

...ache Commons Codec (version 1.7+) to do this job for you. DigestUtils.sha1Hex(stringToConvertToSHexRepresentation) Thanks to @Jon Onstott for this suggestion. Old Answer Convert your Byte Array to Hex String. Real's How To tells you how. return byteArrayToHexString(md.digest(convertme)) and ...
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How to convert UTF-8 byte[] to string?

...ts b4b5dfe475e58b67 public static class Ext { public static string ToHexString(this byte[] hex) { if (hex == null) return null; if (hex.Length == 0) return string.Empty; var s = new StringBuilder(); foreach (byte b in hex) { s.Append(b.ToString(...
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Most lightweight way to create a random string and a random hexadecimal number

... I got a faster one for the hex output. Using the same t1 and t2 as above: >>> t1 = timeit.Timer("''.join(random.choice('0123456789abcdef') for n in xrange(30))", "import random") >>> t2 = timeit.Timer("binascii.b2a_hex(os.urandom(15...
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How to hash some string with sha256 in Java?

...a, and if you want to represent that in a string, you should use base64 or hex... don't try to use the String(byte[], String) constructor. e.g. MessageDigest digest = MessageDigest.getInstance("SHA-256"); byte[] hash = digest.digest(text.getBytes(StandardCharsets.UTF_8)); ...
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怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术

...时候,其 实还有一个消息队列,因为一个线程不一定只接收一种消息而且不一定马上就能处理完并返回,这个消息队列我们把它叫做消息分发队列或者简称分发队列用来与系 统的消息队列区分,注意分发队列里面的消息都是已...
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Restore the state of std::cout after manipulating it

...exactly what you need. :-) Example based on your code snippet: void printHex(std::ostream& x) { boost::io::ios_flags_saver ifs(x); x << std::hex << 123; } share | improve ...
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Generate random string/characters in JavaScript

...two, for example, you'll see your number represented in binary. Similar to hex (base 16), base 36 uses letters to represent digits beyond 9. By converting a random number to base 36, you'll wind up with a bunch of seemingly random letters and numbers. – Chris Baker ...
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How to create a GUID/UUID in Python

....uuid4()) 'f50ec0b7-f960-400d-91f0-c42a6d44e3d0' >>> uuid.uuid4().hex '9fe2c4e93f654fdbb24c02b15259716c' share | improve this answer | follow | ...