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What does value & 0xff do in Java?
... not quite. The & operator works on long values as well, if either operand is a long. But not on byte. See the Java Language Specification, sections 15.22.1 and 5.6.2.
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“is” operator behaves unexpectedly with integers
...entation keeps an
array of integer objects for all
integers between -5 and 256, when you
create an int in that range you
actually just get back a reference to
the existing object. So it should be
possible to change the value of 1. I
suspect the behaviour of Python in
this case is und...
ruby 1.9: invalid byte sequence in UTF-8
...-op, and no checks are run. Ruby Core Documentation for encode. However, converting it to UTF-16 first forces all the checks for invalid byte sequences to be run, and replacements are done as needed.
– Jo Hund
Aug 11 '13 at 18:32
...
How to sum up an array of integers in C#
...
Provided that you can use .NET 3.5 (or newer) and LINQ, try
int sum = arr.Sum();
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How to escape double quotes in JSON
...Tag wird ein neues Reiseziel angesteuert bis wir.
A second encoding then converts it again, escaping the already escaped characters:
FROM: Heute startet unsere Rundreise \"Example text\". Jeden Tag wird ein neues Reiseziel angesteuert bis wir.
TO: Heute startet unsere Rundreise \\\"Example text\...
When to use std::forward to forward arguments?
...e potentially moving the argument all the way through to the final caller, and once it's moved it's gone, so you cannot then use it again (in the way you probably meant to).
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Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...he compiler from aligning the fields according to their natural alignment, and it has no relation to the problem of field ordering. It would be possible to reorder the fields of LocalFileHeader so that the structure has both minimal size and has all fields aligned to their natural alignment. However...
Is a colon `:` safe for friendly-URL use?
...".", "-", "*", and
"_" remain the same.
The space
character " " is converted into a plus
sign "+".
All other characters are
unsafe and are first converted into
one or more bytes using some encoding
scheme. Then each byte is represented
by the 3-character string "%xy", where
xy ...
How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth
...then becomes how do we want to store these numbers in a computer. First we convert both to hexadecimal:
Modulus: EB506399F5C612F5A67A09C1192B92FAB53DB28520D859CE0EF6B7D83D40AA1C1DCE2C0720D15A0F531595CAD81BA5D129F91CC6769719F1435872C4BCD0521150A0263B470066489B918BFCA03CE8A0E9FC2C0314C4B096EA30717C0...
What is the best way to concatenate two vectors?
I'm using multitreading and want to merge the results. For example:
8 Answers
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