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General guidelines to avoid memory leaks in C++ [closed]
...g scope is finished. This is common with PostThreadMessage in Win32:
void foo()
{
boost::shared_ptr<Object> obj(new Object());
// Simplified here
PostThreadMessage(...., (LPARAM)ob.get());
// Destructor destroys! pointer sent to PostThreadMessage is invalid! Zohnoes!
}
As alwa...
What is pluginManagement in Maven's pom.xml?
...ation like:
<plugins>
<plugin>
<groupId>com.foo</groupId>
<artifactId>bar-plugin</artifactId>
</plugin>
</plugins>
Notice how you aren't defining any configuration. You can inherit it from the parent, unless you need to furth...
Change working directory in my current shell context when running Node script
..., but for one, imagine that you executed a script in the background (via ./foo.js &) and as it ran, it started changing your working directory or overriding your PATH. That would be a nightmare.
If you need to perform some actions that require changing your working directory of your shell, you'...
Creating temporary files in bash
...s input to another command, e.g.:
$ diff <(echo hello world) <(echo foo bar)
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Non-type template parameters
...e arguments
template <std::string temp>
void f() {
// ...
}
f<"foo">();
f<"bar">(); // different function!?
Now an impl would need to come up with a unique sequence of characters for a std::string or, for that matter, any other arbitrary user defined class, storing a particula...
Reference assignment operator in PHP, =&
...0$b;
https://www.php.net/manual/en/language.references.whatdo.php#:~:text=$foo%20=%26%20find_var($bar);
https://www.php.net/manual/en/language.oop5.basic.php#:~:text=$reference%20%20=%26%20$instance;
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Bare asterisk in function arguments?
...sitional arguments than the function expects, gives an error of this kind: foo() takes exactly 1 positional argument (2 given)
– Ajay M
May 27 '18 at 1:49
...
Coding in Other (Spoken) Languages
...de in the French language this leads to the following travesty:
interface Foo {
Color getCouleur();
void setCouleur(Color couleur);
}
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How can I change property names when serializing with Json.net?
...ferent name:
using Newtonsoft.Json;
// ...
[JsonProperty(PropertyName = "FooBar")]
public string Foo { get; set; }
Documentation: Serialization Attributes
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How to parse a string to an int in C++?
...oblem: what if the caller needs to distinguish between bad input (e.g. "123foo") and a number that is out of the range of int (e.g. "4000000000" for 32-bit int)? With stringstream, there is no way to make this distinction. We only know whether the conversion succeeded or failed. If it fails, we have...