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Why '&&' and not '&'?
...if you translate true to 1 and false to 0, then do bitwise operation, then convert non-zero to true and zero to false; it happens that the result will be the same had you just used logical operator (check this for exercise).
Another important distinction is also that a logical operator is short-cir...
What is “lifting” in Haskell?
...lt;a>. It applies a->b to every element of the container effectively converting it into functor<b>. When only first argument is supplied, a->b, fmap waits for the functor<a>. That is, supplying a->b alone turns this element-level function into the function functor<a> -&...
How do I convert a git repository to mercurial?
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The hg convert utility isn't on by default after installation. In order to set it as such add the following to your .hgrc file.
[extensions]
hgext.convert=
If you're using TortoiseHg on Windows then this file resides in your home...
Cannot use a CONTAINS or FREETEXT predicate on table or indexed view because it is not full-text ind
...Works
create fulltext catalog FullTextCatalog as default
select *
from sys.fulltext_catalogs
Create full-text search index.
create fulltext index on Production.ProductDescription(Description)
key index PK_ProductDescription_ProductDescriptionID
Before you create the index, make sure:
...
Amazon S3 - HTTPS/SSL - Is it possible? [closed]
... This is the perfect solution for web developers without a devops or sys-admin team. Sure, your assets won't have an elegant domain, but how many customers inspect the html or underlying requests and tsk tsk tsk at the domain url? Not many! Getting your static assets out of you application and...
How to convert an entire MySQL database characterset and collation to UTF-8?
How can I convert entire MySQL database character-set to UTF-8 and collation to UTF-8?
19 Answers
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Convert HashBytes to VarChar
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fn_varbintohexstr is not documented function. Use CONVERT(Char,@value,2)
– Cheburek
Nov 2 '11 at 11:55
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MySQL, better to insert NULL or empty string?
...tching databases, is that Oracle does not support empty strings. They are converted to NULL automatically and you can't query for them using clauses like WHERE somefield = '' .
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Is std::vector copying the objects with a push_back?
... instead of a copy if the argument is an rvalue reference. (Objects can be converted to rvalue references with std::move().)
– emlai
Aug 7 '15 at 17:12
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Background ListView becomes black when scrolling
... fix this issue
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Holder holder;
convertView = null; // convert view should be null
if (convertView == null) {
holder = new Holder();
convertV...