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How to pass argument to Makefile from command line?
...
Thanks. I had been reading that manual and I didn't consider at first, that %: was actually % :, a wildcard type target name. I don't see anything in that manual page regarding @: though... it does suggest that a "do-nothing" rule would simply...
What does numpy.random.seed(0) do?
... Also, when you call numpy.random.seed(None), it "will try to read data from /dev/urandom (or the Windows analogue) if available or seed from the clock otherwise".
– Jonathan
Apr 9 '17 at 11:06
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Search All Fields In All Tables For A Specific Value (Oracle)
...-S user/pwd | grep -v "^--" | grep -v "TABLE_NAME" | grep "^[A-Z]" | while read sw;
do echo "desc $sw" | sqlplus -S user/pwd | grep -v "\-\-\-\-\-\-" | awk -F' ' '{print $1}' | while read nw;
do echo "select * from $sw where $nw='val'";
done;
done;
It yields:
select * from TBL1 where DESCRIPTION=...
smart pointers (boost) explained
...r happens to be needed often, so shared owning smart pointers are widely spread.
Some owning smart pointers support neither the second nor the third. They can therefore not be returned from functions or passed somewhere else. Which is most suitable for RAII purposes where the smart pointer is kept ...
Exotic architectures the standards committees care about
...an 8-bit char
As for non two's-complement systems there is an interesting read on
comp.lang.c++.moderated. Summarized: there are platforms having ones' complement or sign and magnitude representation.
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Adding two Java 8 streams, or an extra element to a stream
...ic methods with generic names can result in code that becomes difficult to read and maintain (namespace pollution). So, it might be better to create your own static methods with more meaningful names. However, for demonstration I will stick with this name.
public static <T> Stream<T> co...
How to [recursively] Zip a directory in PHP?
...$localname) {
$dir = opendir($dirname);
while ($filename = readdir($dir)) {
// Discard . and ..
if ($filename == '.' || $filename == '..')
continue;
// Proceed according to type
$path = $dirname . '/' . $filename;
...
Difference between “managed” and “unmanaged”
I hear/read about it sometimes when talking about .NET, for example "managed code" and "unmanaged code" but I have no idea what they are and what are their differences. What are their difference, by definition? What are the consequences of using either of them? Does this distinction exist in .NET/Wi...
What is a servicebus and when do I need one?
...nation.
If you're not sure why you'd want anything like that, I'd suggest reading up on what makes a good Service Oriented Architecture. The book that really opened my eyes and proved the different between just having Web Services and having a true Service Oriented Architecture was Thomas Erl's Ser...
How does numpy.histogram() work?
While reading up on numpy, I encountered the function numpy.histogram() .
3 Answers
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