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How does #include work in C++? [duplicate]
...n C++ totally unaware of where things you're using are defined.. at what point do you stop and figure it out?
– OJFord
Aug 14 '14 at 14:59
23
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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...n g:
yield v
wrap = reader_wrapper(reader())
for i in wrap:
print(i)
# Result
<< 0
<< 1
<< 2
<< 3
Instead of manually iterating over reader(), we can just yield from it.
def reader_wrapper(g):
yield from g
That works, and we eliminated one line of code....
What does the ??!??! operator do in C?
...sign of sophistication. Besides being really the only decent OS, Unix also converted your upper case to lower, rather than vice versa. Those guys were really cool.
– DigitalRoss
Oct 26 '11 at 2:45
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Measuring text height to be drawn on Canvas ( Android )
...way to measure the height of text?
The way I am doing it now is by using Paint's measureText() to get the width, then by trial and error finding a value to get an approximate height. I've also been messing around with FontMetrics , but all these seem like approximate methods that suck.
...
Use URI builder in Android or create URL with variables
...
No need convert UTF8 content?
– Webserveis
Apr 5 '17 at 20:24
add a comment
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What is a good Java library to zip/unzip files? [closed]
...ipFile.extractAll(destination);
} catch (ZipException e) {
e.printStackTrace();
}
}
The Maven dependency is:
<dependency>
<groupId>net.lingala.zip4j</groupId>
<artifactId>zip4j</artifactId>
<version>1.3.2</version>
</depende...
How to create a file in memory for user to download, but not through server?
... The correct charset is almost certainly UTF-16, unless you have code converting it to UTF-8. JavaScript uses UTF-16 internally. If you have a text or CSV file, start the string with '\ufeff', the Byte Order Mark for UTF-16BE, and text editors will be able to read non-ASCII characters correctly...
Is “else if” a single keyword?
... the original substatement.
and provides the following example:
if (x)
int i;
can be equivalently rewritten as
if (x) {
int i;
}
So how is your slightly extended example parsed?
if
statement_0;
else
if
statement_1;
else
if
statement_2 ;
will be parsed like this:
...
C++ “virtual” keyword for functions in derived classes. Is it necessary?
...t to use it if only to keep the compiler quiet.
From a purely stylistic point-of-view, including the virtual keyword clearly 'advertises' the fact to the user that the function is virtual. This will be important to anyone further sub-classing B without having to check A's definition. For deep cl...
Get current AUTO_INCREMENT value for any table
...REMENT column as a result of the most recently executed INSERT statement." Intuitive! dev.mysql.com/doc/refman/5.6/en/…
– Charlie
Jun 12 '15 at 22:04
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