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String comparison: InvariantCultureIgnoreCase vs OrdinalIgnoreCase? [duplicate]
...ble for display in any
particular culture. Its major
application is to order strings in a
way that will be identical across
cultures.
http://msdn.microsoft.com/en-us/library/system.stringcomparer.invariantcultureignorecase.aspx
The invariant culture is the
CultureInfo object returne...
Java switch statement: Constant expression required, but it IS constant
....4 Final Variables which defines a "constant variable" as follows:
We call a variable, of primitive type or type String, that is final and initialized with a compile-time constant expression (§15.28) a constant variable. Whether a variable is a constant variable or not may have implications wit...
How to cancel a Task in await?
...
Or, in order to avoid modifying slowFunc (say you don't have access to the source code for instance):
var source = new CancellationTokenSource(); //original code
source.Token.Register(CancelNotification); //original code
source.Can...
Create Pandas DataFrame from a string
In order to test some functionality I would like to create a DataFrame from a string. Let's say my test data looks like:
...
Launching Google Maps Directions via an intent on Android
...sk for directions.
If you use the query parameter "geo:lat,lon?q=name" in order to label your geopoint, it uses the query for search and dismiss the lat/lon parameters.
I found a way to center the map with lat/lon and display a pin with a custom label, very nice to display and useful when asking f...
Why should I use core.autocrlf=true in Git?
...nately, there are many binary files that are not DLLs in my repository: in order to be certain I'd got the correct list of file extensions to add to .gitattributes would require reviewing tens of thousands of files.
– Rich
Jul 31 at 21:34
...
Python: How to get stdout after running os.system? [duplicate]
...e a memory error for larger tasks. Reference for this problem here. So, in order to get the output of the os.system command I used this workaround:
import os
batcmd = 'dir'
result_code = os.system(batcmd + ' > output.txt')
if os.path.exists('output.txt'):
fp = open('output.txt', "r")
ou...
Remove rows with all or some NAs (missing values) in data.frame
...G00000221312 0 1 2 3 2
na.omit is nicer for just removing all NA's. complete.cases allows partial selection by including only certain columns of the dataframe:
> final[complete.cases(final[ , 5:6]),]
gene hsap mmul mmus rnor cfam
2 ENSG00000199674 0 2 2 ...
How are virtual functions and vtable implemented?
...bl contents are simply an array of member pointers there (generally in the order they were declared, with the base class's first). There are of course other possible layouts, but that's what I've generally observed.
class A {
public:
virtual int f1() = 0;
};
class B : public A {
public:
vir...
Default value of function parameter
...declare a function with no default arguments
void foo(int a, int b);
In order to call that function after such declaration you'll have to specify both arguments explicitly.
Later (further down) in the same translation unit, you can re-declare it again, but this time with one default argument
v...