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What should I use Android AccountManager for?
...aries like Square Picasso
If you only want to execute some code at a given time, you can consider a Service / Alarm
only available from API >= 7 (this doesn't matter anymore)
Finally, if you use a SyncAdapter, seriously consider Firebase Cloud Messaging (previously Google Cloud Messaging) aka "...
Why use apparently meaningless do-while and if-else statements in macros?
...f the semi-colon is absent.
But the real real good reason is that at some time, the macro's author will perhaps need to replace the macro with a genuine function (perhaps inlined). So the macro should really behave like one.
So we should have a macro needing semi-colon.
Produce a valid code
As s...
std::vector performance regression when enabling C++11
...ith those options you write in your post.
However, if I also enable link time optimization (I also pass the -flto flag to gcc 4.7.2), the results are identical:
(I am compiling your original code, with container.push_back(Item());)
$ g++ -std=c++11 -O3 -flto regr.cpp && perf stat -r 10 ....
Find a value anywhere in a database
...p table for a table variable so you don't have to remember to drop it each time.
CREATE PROC SearchAllTables
(
@SearchStr nvarchar(100)
)
AS
BEGIN
-- Copyright © 2002 Narayana Vyas Kondreddi. All rights reserved.
-- Purpose: To search all columns of all tables for a given search string
-- Wri...
A Regex that will never be matched by anything
... ~480ms to scan a ~275k line file. The converse "a^" takes about the same time, even if it might seem more efficient. On the other hand, a negative lookahead need not scan anything: "(?!x)x" (anything not followed by an x also followed by an x, i.e. nothing) takes about 30ms, or less than 7% of th...
A weighted version of random.choice
...than numpy.random.choice . Picking from a list of 8 weighted items 10,000 times, numpy.random.choice took 0.3286 sec where as random.choices took 0.0416 sec, about 8x faster.
– Anton Codes
Jun 18 '19 at 13:34
...
SQL DELETE with INNER JOIN
...in other tables, to do that you have to first linked your tables in design time.
CREATE TABLE IF NOT EXIST spawnlist (
npc_templateid VARCHAR(20) NOT NULL PRIMARY KEY
)ENGINE=InnoDB;
CREATE TABLE IF NOT EXIST npc (
idTemplate VARCHAR(20) NOT NULL,
FOREIGN KEY (idTemplate) REFERENCES spawnl...
Does “untyped” also mean “dynamically typed” in the academic CS world?
...f values they compute.
He also remarks:
The word “static” is sometimes added explicitly--we speak of a
“statically typed programming language,” for example--to distinguish the
sorts of compile-time analyses we are considering here from the
dynamic or latent typing found in langu...
Using sed to mass rename files
... Note that link-only answers are discouraged (links tend to get stale over time). Please consider editing your answer and adding a synopsis here.
– kleopatra
Jun 23 '13 at 9:10
...
How to add multiple files to Git at the same time
This will be my first git use. I have added new files ( a lot ) to the folder/project ( git local repository).
9 Answers
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