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C++ Convert string (or char*) to wstring (or wchar_t*)
... string in your example (おはよう) is a UTF-8 encoded (which it isn't, by the looks of it, but let's assume it is for the sake of this explanation :-)) representation of a Unicode string of your interest, then your problem can be fully solved with the standard library (C++11 and newer) alone.
T...
What's the difference between design patterns and architectural patterns?
...mes for refining and building smaller subsystems. It is usually influenced by programming language. Some patterns pale into insignificance due to language paradigms.
Design patterns are medium-scale tactics that flesh out some of the structure and behavior of entities and their relationships.
While...
Why use the 'ref' keyword when passing an object?
...ing. You cannot change the value of a string once it has been created. But by using a ref, you could create a function that changes the string for another one that has a different value.
It is not a good idea to use ref unless it is needed. Using ref gives the method freedom to change the argument f...
How to shrink/purge ibdata1 file in MySQL
...will not grow as large. According to Bill Karwin's comment this is enabled by default as of version 5.6.6 of MySQL.
It was a while ago I did this. However, to setup your server to use separate files for each table you need to change my.cnf in order to enable this:
[mysqld]
innodb_file_per_table=1
...
Is multiplication and division using shift operators in C actually faster?
...ou mean divide or multiply. I have never once seen someone introduce a bug by forgetting the relative precedence of multiplication and addition. I have seen bugs introduced when maintenance programmers forgot that "multiplying" via a shift is logically a multiplication but not syntactically of the s...
What does SynchronizationContext do?
...th it. The running thread can be associated with a synchronization context by calling the static SynchronizationContext.SetSynchronizationContext method, and the current context of the running thread can be queried via the SynchronizationContext.Current property.
Despite what I just wrote (each thre...
How does “cat
...tion? because of upvotes? it was the only one for several years. it's seen by comparing dates.
– Alexei Martianov
Dec 10 '19 at 5:02
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Difference between events and delegates and its respective applications [closed]
...the differences.
From a semantics perspective, events are actions raised by an object when certain conditions are met. For example, my Stock class has a property called Limit, and it raises an event when the stock prices reaches the Limit. This notification is done via an event. Whether anyone act...
UTF-8, UTF-16, and UTF-32
...II file.
UTF-16 is better where ASCII is not predominant, since it uses 2 bytes per character, primarily. UTF-8 will start to use 3 or more bytes for the higher order characters where UTF-16 remains at just 2 bytes for most characters.
UTF-32 will cover all possible characters in 4 bytes. This mak...
The shortest possible output from git log containing author and date
... Using timezon
ae62afd tobias Tue Nov 25 21:42:55 2008 +0000 Fixed #67 by adding time zone supp
164be7e mads Tue Nov 25 19:56:43 2008 +0000 fixed tests, and a 'unending appoi
93f1526 jesper Tue Nov 25 09:45:56 2008 +0000 adding time.ZONE.now as time zone
2f0f8c1 tobias Tue Nov 25 0...