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What's the best way to store co-ordinates (longitude/latitude, from Google Maps) in SQL Server?
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In MySQL save it as FLOAT( 10, 6 )
This is the official recommendation from the Google developer documentation.
CREATE TABLE `coords` (
`lat` FLOAT( 10, 6 ) NOT NULL ,
`lng` FLOAT( 10, 6 ) NOT NULL ,
) ENGINE = MYISAM ;
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Java: Static Class?
... but it provides insurance in case the constructor is accidentally invoked from within the class. It guarantees that the class will never be instantiated under any circumstances. This idiom is mildly counterintuitive, as the constructor is provided expressly so that it cannot be invoked. It is there...
dynamic_cast and static_cast in C++
...n order for the cast to be legal.
Casts can go in one of two directions: from base to derived (B2D) or from derived to base (D2B). It's simple enough to see how D2B casts would work at runtime. Either ptr was derived from Type or it wasn't. In the case of D2B dynamic_cast<>s, the rules ar...
Maven fails to find local artifact
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The local Maven repo tracks where artifacts originally came from using a file named "_maven.repositories" in the artifact directory. After removing it, the build worked. This answer fixed the problem for me.
s...
ArrayIndexOutOfBoundsException with custom Android Adapter for multiple views in ListView
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The item view type you are returning from
getItemViewType() is >= getViewTypeCount().
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Automapper - how to map to constructor parameters instead of property setters
...lly mapped according to the conventions.
Also note that this is different from ConvertUsing in that convert using will not continue to map via the conventions, it will instead give you full control of the mapping.
Mapper.CreateMap<ObjectFrom, ObjectTo>()
.ConstructUsing(x => new Objec...
List directory tree structure in python?
...nswers above, but for python3, arguably readable and arguably extensible:
from pathlib import Path
class DisplayablePath(object):
display_filename_prefix_middle = '├──'
display_filename_prefix_last = '└──'
display_parent_prefix_middle = ' '
display_parent_prefix_last...
Render Partial View Using jQuery in ASP.NET MVC
...he below, we have a button click handler that loads the url for the action from a data attribute on the button and fires off a GET request to replace the DIV contained in the partial view with the updated contents.
$('.js-reload-details').on('click', function(evt) {
evt.preventDefault();
ev...
Gson: How to exclude specific fields from Serialization without annotations
...ffects both serialization and deserialization. It will also emit the value from been serialized into the object, even if it is present in the JSON.
– Kong
Apr 16 '13 at 3:48
3
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How do I use valgrind to find memory leaks?
...l heap blocks were freed -- no leaks are possible
ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
I have a leak, but WHERE?
So, you have a memory leak, and Valgrind isn't saying anything meaningful.
Perhaps, somethi...