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When is a C++ destructor called?
...
Others have already addressed the other issues, so I'll just look at one point: do you ever want to manually delete an object.
The answer is yes. @DavidSchwartz gave one example, but it's a fairly unusual one. I'll give an example that's u...
Where to put the doxygen comment blocks for an internal library - in H or in CPP files? [closed]
...
Put the documentation where people will read and write it as they are using and working on the code.
Class comments go in front of classes, method comments in front of methods.
That is the best way to make sure things are maintained. It also keeps your header fil...
Mockito - difference between doReturn() and when()
...ion in which I want to test my Controller methods. However, as I have been reading on the specifics of Mockito, I have found that the methods doReturn(...).when(...) is equivalent to when(...).thenReturn(...) . So, my question is what is the point of having two methods that do the same thing or w...
Can (domain name) subdomains have an underscore “_” in it?
...ginal DNS specification, RFC 1034, section 3.5
"Preferred name syntax" but read it carefully.
Domains with underscores are very common in the wild. Check _jabber._tcp.gmail.com or _sip._udp.apnic.net.
Other RFC mentioned here deal with different things. The original
question was for domain names. ...
(this == null) in C#!
...is accepted - so seemingly the author grapsed it too. But I doubt that all readers will be as bright and fluent in lambdas to recognize a instancebound-lambda versus static-lambda at first sight and map that to 'this' and problems with emitted IL :) This is why I added my three cents. Aside of that,...
How to go to each directory and execute a command?
...xample suggested by @gniourf_gniourf:
find . -type d -print0 | while IFS= read -r -d '' file; do
# ...
done
The above examples support directories with spaces in their name.
Or by assigning into bash array:
dirs=($(find . -type d))
for dir in "${dirs[@]}"; do
cd "$dir"
echo $PWD
done
Ch...
How to properly override clone method?
...ken.
Josh Bloch on Design - Copy Constructor versus Cloning
If you've read the item about cloning in my book, especially if you read between the lines, you will know that I think clone is deeply broken. [...] It's a shame that Cloneable is broken, but it happens.
You may read more discussion ...
How can I remove the first line of a text file using bash/sed script?
... slower than sed, though. I wonder how they managed that; tail should just read a file line by line while sed does pretty complex operations involving interpreting a script, applying regular expressions and the like.
Note: You may be tempted to use
# THIS WILL GIVE YOU AN EMPTY FILE!
tail -n +2 "$...
Excel “External table is not in the expected format.”
I'm trying to read an Excel (xlsx) file using the code shown below. I get an "External table is not in the expected format." error unless I have the file already open in Excel. In other words, I have to open the file in Excel first before I can read if from my C# program. The xlsx file is on a share...
What is an index in SQL?
... any index. This is a good start for troubleshooting performance problems. Read more here:
http://dev.mysql.com/doc/refman/5.0/en/explain.html
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