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How to append text to a text file in C++?
...n't exist and also adds bit of error checks.
static void appendLineToFile(string filepath, string line)
{
std::ofstream file;
//can't enable exception now because of gcc bug that raises ios_base::failure with useless message
//file.exceptions(file.exceptions() | std::ios::failbit);
...
How to implement a confirmation (yes/no) DialogPreference?
...
.setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
Toast.makeText(MainActivity.this, "Yaay", Toast.LENGTH_SHORT).show();
}})
.setNegativeButton...
System.Net.WebException HTTP status code
...t ex.Status to get the WebExceptionStatus.
If you just want a descriptive string to log in case of a failure you can use the null-coalescing operator (??) to get the relevant error:
string status = (ex.Response as HttpWebResponse)?.StatusCode.ToString()
?? ex.Status.ToString();
If the except...
Mongoose subdocuments vs nested schema
... name: [nestedDov]
Simple Version:
var nestedDoc = new Schema({
name: String
});
var mainDoc = new Schema({
names: [nestedDoc]
});
JSON Example
{
"_id" : ObjectId("57c88bf5818e70007dc72e85"),
"name" : "Corinthia Hotel Budapest",
"stars" : 5,
"description" : "The 5-star Cor...
How to validate inputs dynamically created using ng-repeat, ng-show (angular)
...ttempted to use the {{$index}} value to name the inputs, but despite the string literals in HTML appearing correct, it is now working.
...
Scala equivalent of Java java.lang.Class Object
...:
scala> "foo".getClass
res0: java.lang.Class[_ <: java.lang.String] = class java.lang.String
)
Back in 2009:
It would be useful if Scala were to treat the return from getClass() as a java.lang.Class[T] forSome { val T : C } where C is something like the erasure of the static type of...
SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...tener() {
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
// Implementation
}
});
do this:
// Use instance field for listener
// It will not be gc'd as long as this instance is kept referenced
listener = new SharedPreferences.OnSharedPreferenceChangeListener()...
How can I force Powershell to return an array when a call only returns one object?
...ve a Count property. Single objects (scalar) do not have a Count property. Strings have a length property so you might get false results, use the Count property:
if (@($serverIps).Count -le 1)...
By the way, instead of using a wildcard that can also match strings, use the -as operator:
[array]$s...
Display a view from another controller in ASP.NET MVC
...osed to hardcoding a result. Either way you shouldn't be passing in a path string.
– perustaja
Feb 14 at 22:54
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SQL Server Regular expressions in T-SQL
...t it gives you the basics.
(From Books Online)
Wildcard Meaning
% Any string of zero or more characters.
_ Any single character.
[ ] Any single character within the specified range
(for example, [a-f]) or set (for example, [abcdef]).
[^] Any single character not within the specified ran...