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What do single quotes do in C++ when used on multiple characters?
...one c-char is a multicharacter literal . A multicharacter literal has type int and implementation-defined
value.
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How can I force Powershell to return an array when a call only returns one object?
...rray to an Azure deployment template. If there was one object, PowerShell "converted" it to a string. In the example below, $a is returned from a function that gets VM objected according to the value of a tag. I pass the $a to the New-AzureRmResourceGroupDeployment cmdlet by wrapping it in @(). Like...
RecyclerView onClick
...rride
public MyViewHolder onCreateViewHolder(final ViewGroup parent, final int viewType) {
View view = LayoutInflater.from(mContext).inflate(R.layout.myview, parent, false);
view.setOnClickListener(mOnClickListener);
return new MyViewHolder(view);
}
The onClick method:
@Override
publi...
Capture Image from Camera and Display in Activity
....cis.masl.camerademo;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MyCameraActivity extends Activity
{
private static f...
What does “while True” mean in Python?
...the while statement is going to be evaluated as a boolean. Meaning it gets converted into either true or false.
Consider in the statement while(6 > 5)
It first evaluates the expression 6 > 5 which is true so is the same as saying while(true)
Anything that is not FALSE, 0, an emptry string ...
SQL query to select dates between two dates
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Tried this today, you could also use convert(date, Date) between '2011/02/25' and '2011/02/27' (at least with a recent MS SQL Server). The convert() part will take care of stripping the time part and the between comparison will then work as expected.
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Checking for a null int value from a Java ResultSet
...ll value, from a ResultSet, where the column is being cast to a primitive int type.
10 Answers
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Why does C++11's lambda require “mutable” keyword for capture-by-value, by default?
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This is a good point. I totally agree. In C++0x though, I don't quite see how the default helps enforce the above. Consider I am on the receiving end of the lambda, e.g. I am void f(const std::function<int(int)> g). How am I guaranteed ...
How do I decode a string with escaped unicode?
...scaped string. First the string was escaped, then encoded with unicode. To convert back to normal:
var x = "http\\u00253A\\u00252F\\u00252Fexample.com";
var r = /\\u([\d\w]{4})/gi;
x = x.replace(r, function (match, grp) {
return String.fromCharCode(parseInt(grp, 16)); } );
console.log(x); // ...
Array to Hash Ruby
... @tester, the * is called the splat operator. It takes an array and converts it a literal list of items. So *[1,2,3,4] => 1, 2, 3, 4. In this example, the above is equivalent to doing Hash["item 1", "item 2", "item 3", "item 4"]. And Hash has a [] method that accepts a list of arguments (m...