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Unmangling the result of std::type_info::name
...tr_base;
}
It prints:
Type of ptr_base: Base*
Type of pointee: Derived
Tested with g++ 4.7.2, g++ 4.9.0 20140302 (experimental), clang++ 3.4 (trunk 184647), clang 3.5 (trunk 202594) on Linux 64 bit and g++ 4.7.2 (Mingw32, Win32 XP SP2).
If you cannot use C++11 features, here is how it can be do...
How to “properly” create a custom object in JavaScript?
...ather similar to Java-style classes.
var Foo = function()
{
var privateStaticMethod = function() {};
var privateStaticVariable = "foo";
var constructor = function Foo(foo, bar)
{
var privateMethod = function() {};
this.publicMethod = function() {};
};
cons...
instantiate a class from a variable in PHP?
...
class Test {
public function yo() {
return 'yoes';
}
}
$var = 'Test';
$obj = new $var();
echo $obj->yo(); //yoes
share
|
...
How to set Oracle's Java as the default Java in Ubuntu?
...e's Java SE Development Kit as the system default Java just download the latest Java SE Development Kit from here then create a directory somewhere you like in your file system for example /usr/java now extract the files you just downloaded in that directory:
$ sudo tar xvzf jdk-8u5-linux-i586.tar....
Window.open and pass parameters by post method
... post a form to it.
Example:
<form id="TheForm" method="post" action="test.asp" target="TheWindow">
<input type="hidden" name="something" value="something" />
<input type="hidden" name="more" value="something" />
<input type="hidden" name="other" value="something" />
</f...
List all the modules that are part of a python package?
...or: "AttributeError: 'module' object has no attribute '_path_'" - I didn't test it with 'scipy' but with a few other packages. Has this anything to do with Python version? ( I use Python 2.7)
– Apostolos
Feb 23 '18 at 21:51
...
How to compile for Windows on Linux with gcc/g++?
...ike:
i586-mingw32msvc-g++ -o myApp.exe myApp.cpp
You'll sometimes want to test the new Windows application directly in Linux. You can use wine for that, although you should always keep in mind that wine could have bugs. This means that you might not be sure that a bug is in wine, your program, or b...
How to show all shared libraries used by executables in Linux?
...nu/libuuid.so.1.3.0
This method also shows libraries opened with dlopen, tested with this minimal setup hacked up with a sleep(1000) on Ubuntu 18.04.
See also: https://superuser.com/questions/310199/see-currently-loaded-shared-objects-in-linux/1243089
...
Writing Unicode text to a text file?
...file:
foo = u'Δ, Й, ק, م, ๗, あ, 叶, 葉, and 말.'
f = open('test', 'w')
f.write(foo.encode('utf8'))
f.close()
When you read that file again, you'll get a unicode-encoded string that you can decode to a unicode object:
f = file('test', 'r')
print f.read().decode('utf8')
...
Using property() on classmethods
...ty(self):
del type(self)._class_property
This code can be used to test - it should pass without raising any errors:
ex1 = Example()
ex2 = Example()
ex1.class_property = None
ex2.class_property = 'Example'
assert ex1.class_property is ex2.class_property
del ex2.class_property
assert not hasa...