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Which one will execute faster, if (flag==0) or if (0==flag)?
... some user declaring them: typedef, enum, struct, class. For example, std::string is user defined, even though you certainly not defined it yourself :)
– Matthieu M.
Jan 7 '11 at 14:29
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Glorified classes in the Java language
...ance). I would also add its generic typing without creating new instances.
String - with it's overloaded +-operator and the support of literals
Enum - the only class that can be used in a switch statement (soon a privilege to be given to String as well). It does other things as well (automatic stati...
HTML5: number input type that takes only integers?
...signed ints you'll have to fall back to "pattern" validation and thus lose extra features like the up and down arrows for browsers that support it). Is there another input type or perhaps an attribute that would restrict the input to just unsigned integers? I couldn't find any, thanks.
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Python ElementTree module: How to ignore the namespace of XML files to locate matching element when
... you can handle multiple namespaces and namespace aliases:
from io import StringIO # for Python 2 import from StringIO instead
import xml.etree.ElementTree as ET
# instead of ET.fromstring(xml)
it = ET.iterparse(StringIO(xml))
for _, el in it:
prefix, has_namespace, postfix = el.tag.partition...
C++ catching all exceptions
.....
} catch (const std::exception& ex) {
// ...
} catch (const std::string& ex) {
// ...
} catch (...) {
// ...
}
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What's the opposite of chr() in Ruby?
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If String#ord didn't exist in 1.9, it does in 2.0:
"A".ord #=> 65
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Java String to SHA1
I'm trying to make a simple String to SHA1 converter in Java and this is what I've got...
12 Answers
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What do linkers do?
...0,%rsi
11: 00 00 00
which should move the address of the hello world string into the rsi register, which is passed to the write system call.
But wait! How can the compiler possibly know where "Hello world!" will end up in memory when the program is loaded?
Well, it can't, specially after we ...
Signed to unsigned conversion in C - is it always safe?
... need to subtract the given number from max value (256 in case of unsigned char)? For example: 140 when converted to signed number becomes -116. But 20 becomes 20 itself. So any easy trick here?
– Jon Wheelock
Oct 18 '15 at 14:01
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Convert any object to a byte[]
...for the .Net platform
Binary Serialization
XML Serialization: Produces a string which is easily convertible to a byte[]
ProtoBuffers
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