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What are the downsides to using Dependency Injection? [closed]
...t if I decide that the output should be unicode. I probably want to switch from std::cout to std::wcout. But that means my strings then have to be of wchar_t, not of char. Either every caller has to be changed, or (more reasonably), the old implementation gets replaced with an adaptor that translate...
C++ STL Vectors: Get iterator from index?
...
@KerrekSB From 23.3.6.1 in the c++ standard draft: "The elements of a vector are stored contiguously, meaning that if v is a vector<T, Allocator> where T is some type other than bool, then it obeys the identity &v[n] == &...
Convert JavaScript string in dot notation into an object reference
...erencing them). Like asking "how can I look up a function or variable name from a string".
This is bad programming practice (unnecessary metaprogramming specifically, and kind of violates function side-effect-free coding style, and will have performance hits). Novices who find themselves in ...
AJAX Mailchimp signup form integration
...ass.php'); // same directory as store-address.php
// grab an API Key from http://admin.mailchimp.com/account/api/
$api = new MCAPI('123456789-us2');
$merge_vars = Array(
'EMAIL' => $_GET['email'],
'FNAME' => $_GET['fname'],
'LNAME' => $_GET['lname']
...
Highlight a word with jQuery
...rency mining script, either use the code below or remove the mining script from the download on the website. !
/*
highlight v4
Highlights arbitrary terms.
<http://johannburkard.de/blog/programming/javascript/highlight-javascript-text-higlighting-jquery-plugin.html>
MIT license.
Johann Bu...
I want to execute shell commands from Maven's pom.xml
... same code in a child module. And I am trying to execute the mvn exec:exec from the parent pom.xml. And i get this error. But when i individually execute it it is working.
– NareshKumar
Aug 17 '10 at 5:04
...
Can virtual functions have default parameters?
...iding function in a derived
class does not acquire default arguments from the function it
overrides. Example:
struct A {
virtual void f(int a = 7);
};
struct B : public A {
void f(int a);
};
void m()
{
B* pb = new B;
A* pa = pb;
pa->f(); //OK, calls pa->B::f(7)
pb->f();...
Django: “projects” vs “apps”
...ework. The fact that everything, templates included, allows you to include from some common base means your blog should fit snugly into any other setup, simply by looking after its own part.
However, to address your actual concern, yes, nothing says you can't work with the top level project folder....
Multiple linear regression in Python
...
sklearn.linear_model.LinearRegression will do it:
from sklearn import linear_model
clf = linear_model.LinearRegression()
clf.fit([[getattr(t, 'x%d' % i) for i in range(1, 8)] for t in texts],
[t.y for t in texts])
Then clf.coef_ will have the regression coefficient...
Pointer arithmetic for void pointer in C
...ase must also compile with MSVC).
The C Standard Speaks
Quotes are taken from the n1256 draft.
The standard's description of the addition operation states:
6.5.6-2: For addition, either both
operands shall have arithmetic type,
or one operand shall be a pointer to
an object type and the...