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What's the difference between a single precision and double precision floating point operation?
...ght.
The first bit is the sign bit, S,
the next eight bits are the exponent bits, 'E', and
the final 23 bits are the fraction 'F':
S EEEEEEEE FFFFFFFFFFFFFFFFFFFFFFF
0 1 8 9 31
The value V represented by the word may be determined as follows:
If E=255 and F is non...
Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
...2-bit x86. x86-64's increase from 8 to 16 integer and vector registers is one of the biggest factors in 64bit code being faster than 32-bit (along with the more efficient register-call ABI), not the increased width of each register. A further increase from 16 to 32 integer registers would help som...
git command to move a folder inside another
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One of the nicest things about git is that you don't need to track file renames explicitly. Git will figure it out by comparing the contents of the files.
So, in your case, don't work so hard:
$ mkdir include
$ mv common in...
Search All Fields In All Tables For A Specific Value (Oracle)
...ure out what query it is using to obtain it?
Anyway, diciu's answer gives one method of generating SQL queries to check every column of every table for the value. You can also do similar stuff entirely in one SQL session using a PL/SQL block and dynamic SQL. Here's some hastily-written code for t...
Why can't strings be mutable in Java and .NET?
...sier to
design, implement, and use than mutable classes. They are less prone
to error and are more secure.
[...]
"Immutable objects are simple. An immutable object can be in
exactly one state, the state in which it was created. If you make sure
that all constructors establish class...
Unable to set data attribute using jQuery Data() API
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It is mentioned in the .data() documentation
The data- attributes are pulled in the first time the data property is accessed and then are no longer accessed or mutated (all data values are then stored internally in jQuery)
This wa...
How to check if a specific key is present in a hash or not?
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While Hash#has_key? gets the job done, as Matz notes here, it has been deprecated in favour of Hash#key?.
hash.key?(some_key)
share
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improve this answer
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How to create a custom exception type in Java? [duplicate]
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(1) You should make your new exception a public one, so that methods calling your method may catch this new exception and do something with it (if you mean this new exception to be a checked exception, see my edit. (2) Make the constructors public, no need to hide them. (3...
The necessity of hiding the salt for a hash
...ies for salts. The products I work on use something like a user name or phone number to salt the hash. Essentially something that is different for each user but is readily available to us. The other product randomly generates a salt for each user and changes each time the user changes the passwor...
Is there any difference between DECIMAL and NUMERIC in SQL Server?
...e same. At the same time, no recommendation is made by Microsoft regarding one or another (however DECIMAL makes more sense, as it's a standard's datatype instead of a legacy datatype from Sybase). Still wondering what the real difference (behind the screens) is :-).
– vstrien
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