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difference between #if defined(WIN32) and #ifdef(WIN32)
...
#ifdef FOO
and
#if defined(FOO)
are the same,
but to do several things at once, you can use defined, like
#if defined(FOO) || defined(BAR)
share
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How to do a PUT request with curl?
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"man curl" on -X: "Normally you don't need this option. All sorts of GET, HEAD, POST and PUT requests are rather invoked by using dedicated command line options." But I couldn't find another way.
– Martin C. Martin
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Python: Append item to list N times
...a good idea for constant values, like ints or strings, is because only a shallow copy is does when using the <list>*<number> syntax, and thus if you did something like [{}]*100, you'd end up with 100 references to the same dictionary - so changing one of them would change them all. Since...
How do I tell Maven to use the latest version of a dependency?
In Maven, dependencies are usually set up like this:
12 Answers
12
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When to choose checked and unchecked exceptions
...eople misunderstand what this means.
Predictable but unpreventable: The caller did everything within their power to validate the input parameters, but some condition outside their control has caused the operation to fail. For example, you try reading a file but someone deletes it between the time ...
Differences between std::make_unique and std::unique_ptr with new
... unique_ptr<U>(new U())); // unsafe*
The addition of make_unique finally means we can tell people to 'never' use new rather than the previous rule to "'never' use new except when you make a unique_ptr".
There's also a third reason:
make_unique does not require redundant type usage. unique...
Adding two Java 8 streams, or an extra element to a stream
...ream.concat(lhs, Stream.of(rhs));
}
With these two static methods (optionally in combination with static imports), the two examples could be written as follows:
Stream<Foo> stream = concat(stream1, concat(stream2, element));
Stream<Foo> stream = concat(
conca...
Getting the array length of a 2D array in Java
... Unrelated question about your answer. What is the technique/method called where you put "{...};" after the object definition. As a new developer I keep seeing this more and more.
– user432209
Oct 22 '10 at 19:27
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Normalization in DOM parsing with java - how does it work?
...., there are neither adjacent Text nodes nor empty Text nodes.
This basically means that the following XML element
<foo>hello
wor
ld</foo>
could be represented like this in a denormalized node:
Element foo
Text node: ""
Text node: "Hello "
Text node: "wor"
Text nod...
ActiveRecord OR query
How do you do an OR query in Rails 3 ActiveRecord. All the examples I find just have AND queries.
14 Answers
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