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When is assembly faster than C?
...2 bits: MSVC doesn't always do a good job when multiplying 32-bit integers cast to 64, so intrinsics helped a lot.
C doesn't have a full-multiplication operator (2N-bit result from N-bit inputs). The usual way to express it in C is to cast the inputs to the wider type and hope the compiler rec...
Get value from SimpleXMLElement Object
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You have to cast simpleXML Object to a string.
$value = (string) $xml->code[0]->lat;
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Getting only Month and Year from SQL DATE
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great! You can connect them to one column: 'select cast(month(dateField) as varchar) + '.' + cast(year(dateField) as varchar)'
– izik f
Mar 27 '18 at 9:59
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How to create a GUID/UUID in Python
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The uuid module, in Python 2.5 and up, provides RFC compliant UUID
generation. See the module docs and the RFC for details. [source]
Docs:
Python 2: http://docs.python.org/2/library/uuid.html
Python 3:
https://docs.python.org/3/library/uuid.html
E...
How enumerate all classes with custom class attribute?
...ttributes.Length > 0
select new { Type = t, Attributes = attributes.Cast<HelpAttribute>() };
The above query will get you each type with your attribute applied to it, along with the instance of the attribute(s) assigned to it.
Note that if you have a large number of assemblies loaded...
How does Java handle integer underflows and overflows and how would you check for it?
...e source type:
public int addWithOverflowCheck(int a, int b) {
// the cast of a is required, to make the + work with long precision,
// if we just added (a + b) the addition would use int precision and
// the result would be cast to long afterwards!
long result = ((long) a) + b;
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Objective-C: difference between id and void *
...afe, you would pass the is-case-sensitive indicator in the context, likely casting on the way in and way out.
Fragile and error prone, but the only way.
Blocks solve this -- Blocks are closures for C. They are available in Clang -- http://llvm.org/ and are pervasive in Snow Leopard (http://develo...
Using curl to upload POST data with files
... I'm confused by the part about url-encoding the file. I have uploaded JPG and PNG files like this without modifying them, without any problems.
– Deanna Gelbart
May 16 '13 at 0:27
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Facebook Android Generate Key Hash
Trying to create an android app with Facebook integration, I've gotten to the part in the docs where you have to generate a key hash file, it specifies to run the following code
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Seeking clarification on apparent contradictions regarding weakly typed languages
...C# allows all three of those forms of "strong" typing to be violated. The cast operator violates static typing; it says to the compiler "I know more about the runtime type of this expression than you do". If the developer is wrong, then the runtime will throw an exception in order to protect type s...