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Iterator invalidation rules
...s
vector: The functions insert, emplace_back, emplace, push_back cause reallocation if the new size is greater than the old capacity. Reallocation invalidates all the references, pointers, and iterators referring to the elements in the sequence. If no reallocation
happens, all the iterators and re...
Auto increment in phpmyadmin
I have an existing database using PHP, MySQL and phpMyAdmin.
9 Answers
9
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How to round a number to n decimal places in Java
...ing. I'm surprised Chris Cudmore would even say what he said to be honest. allocating objects is always more expensive than casting primitives and using static methods (Math.round() as opposed to decimalFormat.format()).
– Andi Jay
Jul 10 '12 at 14:35
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What is a bus error?
...and are typically the result of:
using a pointer to something that was deallocated.
using an uninitialized hence bogus pointer.
using a null pointer.
overflowing a buffer.
PS: To be more precise this is not manipulating the pointer itself that will cause issues, it's accessing the memory it poin...
Subtract 7 days from current date
...ate = [NSDate date];
NSDateComponents *dateComponents = [[NSDateComponents alloc] init];
[dateComponents setDay:-7];
NSDate *sevenDaysAgo = [[NSCalendar currentCalendar] dateByAddingComponents:dateComponents toDate:currentDate options:0];
NSLog(@"\ncurrentDate: %@\nseven days ago: %@", currentDate, ...
How do you share code between projects/solutions in Visual Studio?
...e more clarification on my edits in the csproj file ... theswamp.org/index.php?topic=41850.msg472902#msg472902 . I just edit it in Notepad++. When I save it VS sees it has changed and asks for a reload. There are settings in VS to control this behavior.
– CAD bloke
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PHPDoc type hinting for array of objects?
So, in PHPDoc one can specify @var above the member variable declaration to hint at its type. Then an IDE, for ex. PHPEd, will know what type of object it's working with and will be able to provide a code insight for that variable.
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Using GSON to parse a JSON array
...;
}
Gson gson = new Gson();
return gson.fromJson(json, new TypeToken<T>(){}.getType());
}
sample call:
List<Specifications> objects = GsonUtils.toList(products, Specifications.class);
share
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MySQL “Group By” and “Order By”
...is unnecessary, and second, $userID appears to be a variable directly from PHP, your code may be sql injection vulnerable if $userID is user-supplied and not forced to be an integer.
– velcrow
Apr 23 '13 at 18:09
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A CORS POST request works from plain JavaScript, but why not with jQuery?
...: x-requested-with, x-requested-by
So to put it all together, here is my PHP:
// * wont work in FF w/ Allow-Credentials
//if you dont need Allow-Credentials, * seems to work
header('Access-Control-Allow-Origin: http://www.example.com');
//if you need cookies or login etc
header('Access-Control-Al...