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Qt: *.pro vs *.pri
...l as sync'ing, bugfixing, and so on.
You could even include a .pri file inside another .pri file if you wish. You could also include .pri files in different subprojects, etc. It is very nice.
The syntax is the same, however, for both the .pro and .pri files. In the end, you would run qmake on the .p...
PostgreSQL - Rename database
...ther clients from the database to be renamed
SELECT pg_terminate_backend( pid )
FROM pg_stat_activity
WHERE pid <> pg_backend_pid( )
AND datname = 'name of database';
-- rename the database (it should now have zero clients)
ALTER DATABASE "name of database" RENAME TO "new name of database...
Sending Email in Android using JavaMail API without using the default/built-in app
I am trying to create a mail sending application in Android.
25 Answers
25
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Double not (!!) operator in PHP
... @Theo, It's actually one operator? Does the interpreter consider !! equal to (bool) in this case? Or will different machine code be run depending on which one is used?
– Pacerier
Mar 30 '15 at 12:00
...
How can I remove a flag in C?
...
+1 for catching the nonobvious corner case. One way to avoid it is to instead use flags -= flags & MY_FLAG; (or ^= if you prefer).
– R.. GitHub STOP HELPING ICE
Oct 16 '10 at 7:52
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How to use the TextWatcher class in Android?
...e TextWatcher...
et1.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// TODO Auto-generated method stub
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, in...
Making a Location object in Android with latitude and longitude values
...th you current location.
Location targetLocation = new Location("");//provider name is unnecessary
targetLocation.setLatitude(0.0d);//your coords of course
targetLocation.setLongitude(0.0d);
float distanceInMeters = targetLocation.distanceTo(myLocation);
...
Creating a new column based on if-elif-else condition
...
To formalize some of the approaches laid out above:
Create a function that operates on the rows of your dataframe like so:
def f(row):
if row['A'] == row['B']:
val = 0
elif row['A'] > row['B']:
val = 1
else:
val = -1
r...
How do I reset a sequence in Oracle?
...
Just be aware that the drop will invalidate any objects that depend on that sequence and they will have to be recompiled.
– Doug Porter
Dec 23 '11 at 18:57
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What's a standard way to do a no-op in python?
...compound_stmts.html) – like e.g. as a sub-expression to an existing code idiom like a comprehension, or a lambda, or (god forbid) a string to be passed into eval(…) (which q.v. docs.python.org/3/library/functions.html#eval if you must).
– fish2000
Apr 23 '1...