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How to initialise memory with new operator in C++?
...surprisingly little-known feature of C++ (as evidenced by the fact that no-one has given this as an answer yet), but it actually has special syntax for value-initializing an array:
new int[10]();
Note that you must use the empty parentheses — you cannot, for example, use (0) or anything else (whi...
Check if two unordered lists are equal [duplicate]
... the cleanest approach here. I think this answer ought to be the accepted one.
– Will
Oct 24 '13 at 11:05
2
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Refresh image with a new one at the same url
...t will make the browser look again for the image instead of retrieving the one in the cache.
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What's the point of 'const' in the Haskell Prelude?
... Ahh so it's more of a 'function generator' - I use it with one argument, and it gives me a function (taking one argument) that always returns a constant value. So map (const 42) [1..5] results in [42, 42, 42, 42, 42].
– stusmith
Sep 13 '11 at 14...
How serious is this new ASP.NET security vulnerability and how can I workaround it?
...us codes are set.
What's at stake?
If an attacker manage to use the mentioned exploit, he/she can download internal files from within your web application. Typically web.config is a target and may contain sensitive information like login information in a database connection string, or even link to...
Patterns for handling batch operations in REST web services?
...rt of each resource, you treat it as a bucket into which to put resources. One example was already posted. I adjusted it a little.
POST /mail?markAsRead=true
POSTDATA: ids=[0,1,2]
Basically, you are updating the list of mail marked as read.
You can also use this for assigning several items to th...
How to handle exceptions in a list comprehensions?
...l the statements you want, so delegating the evaluation of the exception-prone sub-expression to a function, as you've noticed, is one feasible workaround (others, when feasible, are checks on values that might provoke exceptions, as also suggested in other answers).
The correct responses to the qu...
SQL - find records from one table which don't exist in another
...two tables:
This is the shortest statement, and may be quickest if your phone book is very short:
SELECT *
FROM Call
WHERE phone_number NOT IN (SELECT phone_number FROM Phone_book)
alternatively (thanks to Alterlife)
SELECT *
FROM Call
WHERE NOT EXISTS
(SELECT *
FROM Phone_book
...
My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())
...rn 0;
}
int main() {
return output_result(eighty_four);
}
As I mentioned, C allows omitting argument names in header files, therefore the output_result would look like this in header file.
int output_result(int());
One argument in constructor
Don't you recognize that one? Well, let me rem...
TypeScript function overloading
...erent if we compare to OO languages. In answer to another SO question, someone explained it with a nice example: Method overloading?.
Basically, what we are doing is, we are creating just one function and a number of declarations so that TypeScript doesn't give compile errors. When this code is com...