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Convert to absolute value in Objective-C
...+ programs too.)
(Alas, there is no habs(short) function. Or scabs(signed char) for that matter...)
Apple's and GNU's Objective-C headers also include an ABS() macro which is type-agnostic. I don't recommend using ABS() however as it is not guaranteed to be side-effect-safe. For instance, ABS(a+...
Getting distance between two points based on latitude/longitude
...nit.MILES)
>> 243.71201856934454 # in miles
# you can also use the string abbreviation for units:
haversine(lyon, paris, unit='mi')
>> 243.71201856934454 # in miles
haversine(lyon, paris, unit=Unit.NAUTICAL_MILES)
>> 211.78037755311516 # in nautical miles
They claim to have ...
How should I read a file line-by-line in Python?
...ndle when it collects the file object, therefore as long as you don't have extra references to the file object and you don't disable GC and you're not opening many files in quick succession, you're unlikely to get "too many files open" due to not closing the file.
– Lie Ryan
...
Entity Attribute Value Database vs. strict Relational Model Ecommerce
... @Zim, that sounds pretty much like option 3. Each row has 1-n extra "generic" columns, and the data stored in them is interpreted at the application level. You get the performance benefit of having all the data for one record in one place. The metadata about those columns needs to be st...
Schema for a multilanguage database
...
Then you can get the value by XPath-Query in SQL, where you can put the string-variable in
filemeta.value('(/lang//' + @in_language + '/node())[1]', 'nvarchar(MAX)') AS bla
And you can update the value like this:
UPDATE YOUR_TABLE
SET YOUR_XML_FIELD_NAME.modify('replace value of (/lang/de/tex...
What is the difference between an annotated and unannotated tag?
...release without making a release commit.
Lightweight tags don't have that extra information, and don't need it, since you are only going to use it yourself to develop.
git push --follow-tags will only push annotated tags
git describe without command line options only sees annotated tags
Internals...
google oauth2 redirect_uri with several parameters
...
state=THE_STATE_PARAMETERS
So for your case,do this:
/1. create a json string of your parameters ->
{ "a" : "b" , "c" : 1 }
/2. do a base64UrlEncode , to make it URL safe ->
stateString = base64UrlEncode('{ "a" : "b" , "c" : 1 }');
This is a PHP example of base64UrlEncoding & de...
How can I echo HTML in PHP?
...
@MhdSyrwan just random chars, you can read more here php.net/manual/en/…
– lfx
Sep 23 '11 at 18:22
1
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Is there a way to change the environment variables of another process in Unix?
...ocesses.
Suppose that you write your own shared library which implements 'char *getenv'. Then, you set up 'LD_PRELOAD' or 'LD_LIBRARY_PATH' env. vars so that both your processes are run with your shared library preloaded.
This way, you will essentially have a control over the code of the 'getenv' ...
Performance difference for control structures 'for' and 'foreach' in C#
...date. I did a small test, just to see. Here is the code:
static void Main(string[] args)
{
List<int> intList = new List<int>();
for (int i = 0; i < 10000000; i++)
{
intList.Add(i);
}
DateTime timeStarted = DateTime.Now;
for (int i = 0; i < intList...