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http to https apache redirection
...ps://mysite.example.com/
</VirtualHost>
<VirtualHost _default_:443>
ServerName mysite.example.com
DocumentRoot /usr/local/apache2/htdocs
SSLEngine On
# etc...
</VirtualHost>
Then do:
/etc/init.d/httpd restart
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ggplot2 legend to bottom and horizontal
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Shreyas KarnikShreyas Karnik
3,32333 gold badges2323 silver badges2626 bronze badges
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How to compile without warnings being treated as errors?
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83
Sure, find where -Werror is set and remove that flag. Then warnings will be only warnings.
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Javascript: formatting a rounded number to N decimals
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edited Feb 8 '10 at 11:33
answered Feb 8 '10 at 11:27
Gu...
Default value of function parameter
... suppose:
lib.h
int Add(int a, int b);
lib.cpp
int Add(int a, int b = 3) {
...
}
test.cpp
#include "lib.h"
int main() {
Add(4);
}
The compilation of test.cpp will not see the default parameter declaration, and will fail with an error.
For this reason, the default parameter definit...
How to synchronize a static variable among threads running different instances of a class in Java?
...nchronized (countLock) {
count++;
}
}
}
Method 3 is the best in many cases because the lock object is not exposed outside of your class.
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What is the difference between double-ampersand (&&) and semicolon (;) in Linux Bash?
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3 Answers
3
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How can I use an array of function pointers?
...ract; /* address of subtract() */
p[2] = mul; /* address of mul() */
p[3] = div; /* address of div() */
[...]
To call one of those function pointers:
result = (*p[op]) (i, j); // op being the index of one of the four functions
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For each row in an R dataframe
... plate value1 value2
1 A P1 1 100
2 B P2 2 200
3 C P3 3 300
> f <- function(x, output) {
wellName <- x[1]
plateName <- x[2]
wellID <- 1
print(paste(wellID, x[3], x[4], sep=","))
cat(paste(wellID, x[3], x[4], sep=","), file= output, appen...
How to get week number in Python?
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edited Sep 17 '18 at 21:43
Alan W. Smith
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answer...