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What is the equivalent of bigint in C#?
...insert and used a
SELECT @@identity
on my bigint primary key, and I get a cast error using long - that was why I started this search. The correct answer, at least in my case, is that the type returned by that select is NUMERIC which equates to a decimal type. Using a long will cause a cast exceptio...
How to convert ‘false’ to 0 and ‘true’ to 1 in Python
...
@AlbertChen: no, because numpy arrays broadcast comparisons and don't produce a boolean value. Instead, comparisons produce an array of boolean values. I'm not sure what you expect from an arrayvalue == 'true' comparison, the question I answered here is specific to a ...
How do I sort an NSMutableArray with custom objects in it?
...
I did this in iOS 4 using a block.
Had to cast the elements of my array from id to my class type.
In this case it was a class called Score with a property called points.
Also you need to decide what to do if the elements of your array are not the right type, for thi...
How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
...dy using Boost, you can do it with boost string algorithms + boost lexical cast:
#include <boost/algorithm/string/predicate.hpp>
#include <boost/lexical_cast.hpp>
try {
if (boost::starts_with(argv[1], "--foo="))
foo_value = boost::lexical_cast<int>(argv[1]+6);
} c...
Execute Insert command and return inserted Id in Sql
...
I was getting an invalid cast error when trying to cast the int modified = (int)cmd.ExecuteScalar(); to an int. I had to use Convert to convert it to an int. int modified = Convert.ToInt32(cmd.ExecuteScalar());
– Baddack
...
PHP validation/regex for URL
...ues, but I'm sure it's not exhaustive:
$text = preg_replace(
'#((https?|ftp)://(\S*?\.\S*?))([\s)\[\]{},;"\':<]|\.\s|$)#i',
"'<a href=\"$1\" target=\"_blank\">$3</a>$4'",
$text
);
Most of the random junk at the end is to deal with situations like http://domain.com. in a sente...
Possible heap pollution via varargs parameter
...istOfAs; // points to a list of As
This can lead to "unexplainable" ClassCastExceptions.
// if the heap never gets polluted, this should never throw a CCE
B b = listOfBs.get(0);
@SafeVarargs does not prevent this at all. However, there are methods which provably will not pollute the heap, the ...
How can I convert JSON to a HashMap using Gson?
I'm requesting data from a server which returns data in the JSON format. Casting a HashMap into JSON when making the request wasn't hard at all but the other way seems to be a little tricky. The JSON response looks like this:
...
Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
...n? var wtf = ((String)null).ToString(); I'm working in Java recently where casting null's is possible, has been a while since I worked with C#.
– Jochem
May 30 '12 at 13:56
14
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Find a value anywhere in a database
...have different versions for different variable types. That way you're not casting and it will run quicker. You could also compare the file types to search cast-able types. An integer could be in a varchar field.
– SQLMason
Jun 5 '19 at 15:00
...