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Convert an enum to List
...thod that does only this for only one type of enum, and also converts that array to a List, you can write something like this:
public List<string> GetDataSourceTypes()
{
return Enum.GetNames(typeof(DataSourceTypes)).ToList();
}
You will need Using System.Linq; at the top of your class t...
Structure padding and packing
...char c;
char gap_1[3]; /* -"-: for alignment of the whole struct in an array */
} x;
Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__)), so the following:
struct __attribute__((__packed__)) mystruc...
How to get the name of a class without the package?
...n empty string if the underlying class is anonymous.
The simple name of an array is the simple name of the component type with "[]" appended. In particular the simple name of an array whose component type is anonymous is "[]".
It is actually stripping the package information from the name, but this...
What is an intuitive explanation of the Expectation Maximization technique? [closed]
...s) = 0.80 and pB(heads)=0.45
# represent the experiments
head_counts = np.array([5,9,8,4,7])
tail_counts = 10-head_counts
experiments = zip(head_counts,tail_counts)
# initialise the pA(heads) and pB(heads)
pA_heads = np.zeros(100); pA_heads[0] = 0.60
pB_heads = np.zeros(100); pB_heads[0] = 0.50
#...
D Programming Language in the real world? [closed]
...multi-page template error messages when you screw up just to use resizable arrays.
Unlike Java and other bondage-and-discipline languages, D assumes that sometimes pointers, unsafe casts, manual memory management, etc. are a necessary evil, and assumes you're smart enough to handle real templates...
Rails 4 multiple image or file upload using carrierwave
...aveuploader/carrierwave'
Create a column in the intended model to host an array of images:
rails generate migration AddPicturesToProducts pictures:json
Run the migration
bundle exec rake db:migrate
Add pictures to model Product
app/models/product.rb
class Product < ActiveRecord::Base
val...
Is inject the same thing as reduce in ruby?
...he same thing? Why does Ruby have so many aliases (such as map/collect for arrays)? Thanks a lot.
2 Answers
...
Passing a String by Reference in Java?
...tring data; }
void fillString(Container c) { c.data += "foo"; }
Create an array:
new String[] zText = new String[1];
zText[0] = "";
void fillString(String[] zText) { zText[0] += "foo"; }
From a performance point of view, the StringBuilder is usually the best option.
...
请停下来重新想下 你究竟为何创业？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...绰号！
但拿到天使投资只是第一步而已。如果你很善于使用关于创业流行词汇，并对类似“软件吞并世界”、“旧金山湾区”等的神圣故事带有足够的景仰之情，相信你也可以创业过程中顺风顺水的。
而且天使投资仅仅融资...
Multiple Inheritance in PHP
...multiInherit class. A protected variable in a child class could contain an array of classes to inherit. The constructor in the multi-interface class could create instances of each of the classes that are being inherited and link them to a private property, say _ext. The __call() method could use the...