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dynamic_cast and static_cast in C++
... types are related. If the types are not related, you will get a compiler error. For example:
class B {};
class D : public B {};
class X {};
int main()
{
D* d = new D;
B* b = static_cast<B*>(d); // this works
X* x = static_cast<X*>(d); // ERROR - Won't compile
return 0;
}
d...
How to access a preexisting collection with Mongoose?
.../localhost/local');
var connection = mongoose.connection;
connection.on('error', console.error.bind(console, 'connection error:'));
connection.once('open', function () {
connection.db.collection("YourCollectionName", function(err, collection){
collection.find({}).toArray(function(err,...
VBA - how to conditionally skip a for loop iteration
...write robust VBA without the Goto statement simply because you need it for error handling (i.e., On Error Goto).
– mwolfe02
Feb 25 '15 at 0:55
...
How to import a single table in to mysql database using command line
... The tableName name does not needed for all MySQL versions and it produces errors, so you may need to omit it!
– mchar
Aug 25 '16 at 10:35
1
...
how to stop browser back button using javascript
...n (global) {
if(typeof (global) === "undefined") {
throw new Error("window is undefined");
}
var _hash = "!";
var noBackPlease = function () {
global.location.href += "#";
// making sure we have the fruit available for juice (^__^)
global.setTimeou...
How to get rid of the 'undeclared selector' warning
...mented protocol. For example, there's a category method that should set an error property if the NSObject instance it's called on supports it. This is the code, and the code works as intended:
...
How can I efficiently download a large file using Go?
...
I'll assume you mean download via http (error checks omitted for brevity):
import ("net/http"; "io"; "os")
...
out, err := os.Create("output.txt")
defer out.Close()
...
resp, err := http.Get("http://example.com/")
defer resp.Body.Close()
...
n, err := io.Copy(out,...
requestFeature() must be called before adding content
...
Well, just do what the error message tells you.
Don't call setContentView() before requestFeature().
Note:
As said in comments, for both ActionBarSherlock and AppCompat library, it's necessary to call requestFeature() before super.onCreate()
...
Getting the last revision number in SVN?
... output in XML like so:
$output = `svn info $url --xml`;
If there is an error then the output will be directed to stderr. To capture stderr in your output use thusly:
$output = `svn info $url 2>&1`;
share
...
Java - sending HTTP parameters via POST method easily
...tion really cumbersome to use. And you have to write a lot of boilerplate, error prone code. I needed a lightweight wrapper for my Android projects and came out with a library which you can use as well: DavidWebb.
The above example could be written like this:
Webb webb = Webb.create();
webb.post("...