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Detecting endianness programmatically in a C++ program
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Is this solution really portable? What if CHAR_BIT != 8 ?
– zorgit
May 30 '15 at 20:12
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Python - Create a list with initial capacity
...doReserve);
test("doAllocate", doAllocate);
}
On my Windows 7 i7, 64-bit Python gives
Elements: 100000, Iterations: 144
doAppend: 3587.204933ms
doAllocate: 2701.154947ms
doGenerator: 1721.098185ms
While C++ gives (built with MSVC, 64-bit, Optimizations enabled)
Elements: 100000, Iterations...
How to check if a string “StartsWith” another string?
...ual measurements. On the browser I'm running currently (Chrome 12.0.742 on Windows) substring wins for success and prepared regex wins for failure.
– cobbal
Jul 14 '11 at 17:11
4
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Determine which MySQL configuration file is being used
...-help | grep -A 1 "Default options"
Default options are read from the following files in the given order:
/etc/mysql/my.cnf ~/.my.cnf /usr/etc/my.cnf
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Git status shows files as changed even though contents are the same
...blem has been solved:
That is easy: the first file has CRLF line-ends (windows), the second
LF (Unix). The file util (available in git\usr\bin) will show you that (file a b will reply
something like a: ASCII text, with CRLF line terminators b: ASCII
text)
Original answer below:
The di...
Can I convert long to int?
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The safe and fastest way is to use Bit Masking before cast...
int MyInt = (int) ( MyLong & 0xFFFFFFFF )
The Bit Mask ( 0xFFFFFFFF ) value will depend on the size of Int because Int size is dependent on machine.
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Xcode 'Build and Archive' menu item disabled
...m it was because for some reason the build configuration was set to MAC 64 bit (dont know how it got there...) , returned it to IOS and it got enabled again.
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How do I do an OR filter in a Django query?
...ou can use the debug-toolbar Django application. It's made of awesome and win.
– Deniz Dogan
Apr 11 '09 at 11:45
26
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error opening HPROF file: IOException: Unknown HPROF Version
I am getting the following exception when trying to open HPROF file (created by Debug.dumpHprofData ) with Memory Analyzer:
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How many double numbers are there between 0.0 and 1.0?
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Java doubles are in IEEE-754 format, therefore they have a 52-bit fraction; between any two adjacent powers of two (inclusive of one and exclusive of the next one), there will therefore be 2 to the 52th power different doubles (i.e., 4503599627370496 of them). For example, that's the n...