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Android Replace “…” with ellipsis character

...Eclipse then you can always do the following: Right click on the warning Select "Quick Fix" (shortcut is Ctrl + 1 by default) Select "Replace with suggested characters" This should replace your three dots with the proper Unicode character for ellipsis. Just a note: The latest version of ADT (21...
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Memcached vs. Redis? [closed]

... Use Redis if You require selectively deleting/expiring items in the cache. (You need this) You require the ability to query keys of a particular type. eq. 'blog1:posts:*', 'blog2:categories:xyz:posts:*'. oh yeah! this is very important. Use this to i...
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Difference between BYTE and CHAR in column datatypes

... Let us assume the database character set is UTF-8, which is the recommended setting in recent versions of Oracle. In this case, some characters take more than 1 byte to store in the database. If you define the field as VARCHAR2(11 BYTE), Oracle can us...
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How expensive is RTTI?

...ases with optimisation, typeid() is nearly x20 faster than dyncamic_cast. Chart The Code As requested in the comments, the code is below (a bit messy, but works). 'FastDelegate.h' is available from here. #include <iostream> #include "FastDelegate.h" #include "cycle.h" #include "time.h" // U...
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When is CRC more appropriate to use than MD5/SHA1?

... inappropriate CRC hashes are for hash tables. It also explains the actual characteristics of the algorithm. The study also includes evaluation of other hash algorithms and is a good reference to keep. The relevant conclusion on CRC for hashes: CRC32 was never intended for hash table use. There...
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What does “Memory allocated at compile time” really mean?

...and (relative) position of this allocation is determined at compile time. char a[32]; char b; char c; Those 3 variables are "allocated at compile time", it means that the compiler calculates their size (which is fixed) at compile time. The variable a will be an offset in memory, let's say, pointi...
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Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'

...; operator will only read from the stream until it encounters a whitespace character, since there's no length information stored in the stream. So even though we output a string object containing "hello world", we're only going to input a string object containing "hello". So while the stream has s...
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Differences between C++ string == and compare()?

...ard has to say about operator== 21.4.8.2 operator== template<class charT, class traits, class Allocator> bool operator==(const basic_string<charT,traits,Allocator>& lhs, const basic_string<charT,traits,Allocator>& rhs) noexcept; Returns: lhs.compa...
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How to parse a string to an int in C++?

What's the C++ way of parsing a string (given as char *) into an int? Robust and clear error handling is a plus (instead of returning zero ). ...
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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?

...t(devicedir.c_str(), &st)==0 && S_ISLNK(st.st_mode)) { char buffer[1024]; memset(buffer, 0, sizeof(buffer)); // Append '/driver' and return basename of the target devicedir += "/driver"; if (readlink(devicedir.c_str(), buffer, sizeof(buffer)) &gt...