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How to track down a “double free or corruption” error
...olerant version of malloc, which will cause your program to abort at the point where the double free is done.
You can set this from gdb by using the set environment MALLOC_CHECK_ 2 command before running your program; the program should abort, with the free() call visible in the backtrace.
see the...
Android LocationClient class is deprecated but used in documentation
...ority(LocationRequest.PRIORITY_HIGH_ACCURACY);
mLocationRequest.setInterval(1000); // Update location every second
LocationServices.FusedLocationApi.requestLocationUpdates(
mGoogleApiClient, mLocationRequest, this);
}
@Override
public void onConnectionSu...
What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]
...nge in the C# compiler that relies on the assumption that the JIT works as intended. I think the JIT bug existed in .NET 4.0, but was uncovered by the change in the compiler for .NET 4.5.
I do not think that beforefieldinit is the only issue here. I think it's simpler than that.
The type System....
How to force LINQ Sum() to return 0 while source collection is empty
...
That's win for me:
int Total = 0;
Total = (int)Db.Logins.Where(L => L.id == item.MyId).Sum(L => (int?)L.NumberOfLogins ?? 0);
In my LOGIN table, in field NUMBEROFLOGINS some values are NULL and others have an INT number. I sum here tota...
How do you implement a private setter when using an interface?
I've created an interface with some properties.
2 Answers
2
...
How to do a FULL OUTER JOIN in MySQL?
... syntax. According to MySql's outer join simplification, the right join is converted to the equivalent left join by switching the t1 and t2 in the FROM and ON clause in the query. Thus, the MySql Query Optimizer translates the original query into the following -
SELECT * FROM t1
LEFT JOIN t2 ON t1...
How to compare type of an object in Python?
...
def distance_from_zero(n): if isinstance(n,int) or isinstance(n,float): return abs(n) else: return "Nope" print distance_from_zero(True) This returns a "1" instead of "Nope". How to get around this ?
– dig_123
...
How to use ArrayAdapter
...ivate TextView itemView;
}
public MyClassAdapter(Context context, int textViewResourceId, ArrayList<MyClass> items) {
super(context, textViewResourceId, items);
}
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null)...
What is the significance of 1/1/1753 in SQL Server?
...se the Gregorian Calendar.
So with the greater range of datetime2
SELECT CONVERT(VARCHAR, DATEADD(DAY,-5,CAST('1752-09-13' AS DATETIME2)),100)
Returns
Sep 8 1752 12:00AM
One final point with the datetime2 data type is that it uses the proleptic Gregorian calendar projected backwards to well ...
C++11 range based loop: get item by value or reference to const
...
Thanks for the great answer. I guess it should also be pointed out that const auto &x is equivalent to your third choice.
– smg
Apr 16 '15 at 15:11
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