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What is the fastest way to compute sin and cos together?
...ng of compiler flags for this to work, but:
$ gcc --version
i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5488)
Copyright (C) 2005 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS...
Minimum and maximum value of z-index?
...value in the CSS standard, but I guess most browsers limit it to signed 32-bit values (−2147483648 to +2147483647) in practice (64 would be a little off the top, and it doesn't make sense to use anything less than 32 bits these days)
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Base64 encoding in SQL Server 2005 T-SQL
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Maximum length for MD5 input/output
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MD5 processes an arbitrary-length message into a fixed-length output of 128 bits, typically represented as a sequence of 32 hexadecimal digits.
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What is the difference between float and double?
...7.
Here's how the number of digits are calculated:
double has 52 mantissa bits + 1 hidden bit: log(253)÷log(10) = 15.95 digits
float has 23 mantissa bits + 1 hidden bit: log(224)÷log(10) = 7.22 digits
This precision loss could lead to greater truncation errors being accumulated when repeated cal...
Is gcc 4.8 or earlier buggy about regular expressions?
... std::regex in a C++11 piece of code, but it appears that the support is a bit buggy. An example:
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I want to delete all bin and obj folders to force all projects to rebuild everything
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Hmm that's odd - it works fine on my machine (vista 64bit business) - I'll try it on an xp machine too.
– Steve Willcock
Apr 16 '09 at 12:53
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How to change the type of a field?
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And if you need to convert string (or "normal" 32-bit integer) to 64-bit integer, use NumberLong as here: db.db-name.find({field-name : {$exists : true}}).forEach( function(obj) { obj.field-name = new NumberLong(obj.field-name); db.db-name.save(obj); } );
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Which version of Python do I have installed?
...ul than -v command, since it tells architecture of the installed python (32bit or 64bit)
– Abouzar Nouri
Jan 10 '17 at 12:28
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java get file size efficiently
...gth. If we try to get rid of these things then for one call I get the following times in microseconds:
file sum___19.0, per Iteration___19.0
raf sum___16.0, per Iteration___16.0
channel sum__273.0, per Iteration__273.0
For 100 runs and 10000 iterations I get:
file sum__1767629.0, per...