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std::function vs template
...making calc2 'extern' in sep. source file. You are then comparing apples w/oranges; calc2 is doing something calc1 can't. And, the loop could be inside calc (many calls to f); not around the ctor of the function object.
– greggo
Mar 4 '14 at 14:57
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Getting the SQL from a Django QuerySet [duplicate]
...cepted answer did not work for me when using Django 1.4.4. Instead of the raw query, a reference to the Query object was returned: <django.db.models.sql.query.Query object at 0x10a4acd90>.
The following returned the query:
>>> queryset = MyModel.objects.all()
>>> queryset...
WebSockets protocol vs HTTP
...ems. Their requirements are different. It will be like comparing apples to oranges. They are different.
HTTP is a request–response protocol. Client (browser) wants something, server gives it. That is. If the data client wants is big, the server might send streaming data to void unwanted buffer pr...
typecast string to integer - Postgres
I am importing data from a table which has raw feeds in Varchar, I need to import a column in varchar into a string column. I tried using the <column_name>::integer as well as to_number(<column_name>,'9999999') but I am getting errors, as there are a few empty fields, I need to retri...
Display a float with two decimal places in Python
...marks as usual, prepended with f'... in the same way you would r'... for a raw string. Then you place whatever you want to put within your string, variables, numbers, inside braces f'some string text with a {variable} or {number} within that text' - and Python evaluates as with previous string forma...
How do you log content of a JSON object in Node.js?
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To have an output more similar to the raw console.log(obj) I usually do use console.log('Status: ' + util.inspect(obj)) (JSON is slightly different).
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Why is an int in OCaml only 31 bits?
...e always unset.
Argumentless constructors (like this: type fruit = Apple | Orange |
Banana) and integers do not represent so much information that they
need to be allocated in the heap. Their representation is unboxed. The
data is directly inside the word that would otherwise have been a
pointer. So...
Why static classes cant implement interfaces? [duplicate]
In my application I want to use a Repository that will do the raw data access ( TestRepository , SqlRepository , FlatFileRepository etc).
Because such a repository would be used throughout the runtime of my application it seemed like a sensible thing to me to make it a static class so I could go
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Execute bash script from URL
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You can also do this:
wget -O - https://raw.github.com/luismartingil/commands/master/101_remote2local_wireshark.sh | bash
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RAII and smart pointers in C++
...ake sure that we close the file once we've finished with it. This has two drawbacks - firstly, wherever we use File, we will have to called File::close() - if we forget to do this, we're holding onto the file longer than we need to. The second problem is what if an exception is thrown before we clos...