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What is the exact problem with multiple inheritance?
...d layout for each type of object. Something like this:
class A:
at offset 0 ... "abc" ... 4 byte int field
at offset 4 ... "xyz" ... 8 byte double field
at offset 12 ... "speak" ... 4 byte function pointer
class B:
at offset 0 ... "foo" ... 2 byte short field
at offset 2 ... 2 ...
Bootstrap 3 collapsed menu doesn't close on click
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Bootstrap's default setting is to keep the menu open when you click on a menu item. You can manually override this behaviour by calling .collapse('hide'); on the jQuery element that you want to collapse.
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Can't use method return value in write context
...empty" value is any different from "false".
Empty is just an alias for !isset($thing) || !$thing. When the thing you're checking always exists (in PHP results of function calls always exist), the empty() function is nothing but a negation operator.
PHP doesn't have concept of emptyness. Values tha...
How do I put an 'if clause' in an SQL string?
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For your specific query, you can do:
UPDATE purchaseOrder
SET purchaseOrder_status = 'COMPLETED'
WHERE purchaseOrder_ID = '@purchaseOrder_ID' and
not exists (SELECT *
FROM itemsOrdered WHERE purchaseOrder_ID = '@purchaseOrdered_ID' AND status = 'P...
Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
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@Logan, there is not only the set of scripts, that prevent building in case of any warning detected. Xcode has a perfect mechanism named "Configuration". Check this out boredzo.org/blog/archives/2009-11-07/warnings
– adnako
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How to print last two columns using awk
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You can make use of variable NF which is set to the total number of fields in the input record:
awk '{print $(NF-1),"\t",$NF}' file
this assumes that you have at least 2 fields.
share
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What is the best IDE to develop Android apps in? [closed]
... @nyxtom I just write the code in Vim and use the Android Asset Packaging Tool (aapt) from the SDK to create the APKs. Then jump to the shell and use adb to install the app. Nothing fancy.
– Pierre-Antoine LaFayette
Sep 5 '10 at 14:05
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Backbone View: Inherit and extend events from parent
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If you use CoffeeScript and set a function to events, you can use super.
class ParentView extends Backbone.View
events: ->
'foo' : 'doSomething'
class ChildView extends ParentView
events: ->
_.extend {}, super,
'bar' : 'doOther...
How to print out the contents of a vector?
...r> // for ostream_iterator
#include <vector>
int main() {
/* Set up vector to hold chars a-z */
std::vector<char> path;
for (int ch = 'a'; ch <= 'z'; ++ch)
path.push_back(ch);
/* Print path vector to console */
std::copy(path.begin(), path.end(), std::...
Difference Between Schema / Database in MySQL
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PostgreSQL supports schemas, which is a subset of a database:
https://www.postgresql.org/docs/current/static/ddl-schemas.html
A database contains one or more named schemas, which in turn contain
tables. Schemas also contain other kinds of named objects, includin...