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When would I need a SecureString in .NET?
...ies of it. It also makes sure the plain text won't get written to the Swap file or in core dumps. The encryption is more like obfuscation and won't stop a determined hacker, though, who would be able to find the symmetric key used to encrypt and decrypt it.
As others have said, the reason you have ...
Immutable vs Mutable types
...gt; s[0]
'a'
>>> s[0] = "o"
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'str' object does not support item assignment
>>> s = "xyz"
>>>id(s)
4800100
>>> s += "uvw"
>>>id(s)
4800500
You can do that wit...
Why is a boolean 1 byte and not 1 bit of size?
...bably) exist computers which support 4-bit byte, you don't have 4-bit bool etc.
However, if you can design such an architecture which can address 4-bit as basic addressable unit, then you will have bool of size 4-bit then, on that computer only!
...
Hibernate dialect for Oracle Database 11g?
...*, ROWNUM rnum FROM (
SELECT * FROM TABLES INCLUDING JOINS, ORDERING, etc.) a
WHERE ROWNUM <= 10 )
WHERE rnum > 0;
But there can be other nuances.
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Difference between @OneToMany and @ElementCollection?
...s not a collection of entities, but a collection of simple types (Strings, etc.) or a collection of embeddable elements (class annotated with @Embeddable).
It also means that the elements are completely owned by the containing entities: they're modified when the entity is modified, deleted when the...
Heavy usage of Python at Google [closed]
... not
as fast as Java or C++, threading
sucks, memory usage is higher, etc.
One of the design constraints we face
when designing any new system is,
"what happens when the load goes up
by 10x or 100x? What happens if the
whole planet thinks your new service
is awesome?" Any technol...
How do I execute a stored procedure once for each row returned by query?
...ect field1, field2 from sometable where someotherfield is null
open cur
fetch next from cur into @field1, @field2
while @@FETCH_STATUS = 0 BEGIN
--execute your sproc on each row
exec uspYourSproc @field1, @field2
fetch next from cur into @field1, @field2
END
close cur
deallocate cu...
Why declare a struct that only contains an array in C?
... (so it allows cleaner code - it won't make any difference in speed etc)
– John Carter
Aug 6 '11 at 11:51
...
Clang optimization levels
On gcc, the manual explains what -O3 , -Os , etc. translate to in terms of specific optimisation arguments ( -funswitch-loops , -fcompare-elim , etc.)
...
How to efficiently concatenate strings in go
...xample: For the peeking behavior when the bytes are passed to an io.Reader etc.
Note
Do not copy a StringBuilder value as it caches the underlying data.
If you want to share a StringBuilder value, use a pointer to it.
Check out its source code for more details, here.
...