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Differences between std::make_unique and std::unique_ptr with new
Does std::make_unique have any efficiency benefits like std::make_shared ?
4 Answers
...
How do you find the row count for all your tables in Postgres
...vy activity, but is generally a good estimate:
SELECT schemaname,relname,n_live_tup
FROM pg_stat_user_tables
ORDER BY n_live_tup DESC;
That can also show you how many rows are dead, which is itself an interesting number to monitor.
The third way is to note that the system ANALYZE command, ...
How do I disable the security certificate check in Python requests
...import requests
from urllib3.exceptions import InsecureRequestWarning
old_merge_environment_settings = requests.Session.merge_environment_settings
@contextlib.contextmanager
def no_ssl_verification():
opened_adapters = set()
def merge_environment_settings(self, url, proxies, stream, veri...
Assign width to half available screen width declaratively
...
If your widget is a Button:
<LinearLayout android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:weightSum="2"
android:orientation="horizontal">
<Button android:layout_width="0dp"
android:layout_height="wrap_content"
...
WPF ToolBar: how to remove grip and overflow
....Dock="Top">
<ToolBar ToolBarTray.IsLocked="True" Loaded="ToolBar_Loaded">
<Menu ToolBar.OverflowMode="Never">
<MenuItem Header="File" />
<MenuItem Header="New" />
</Menu>
</ToolBar>
</ToolBarPanel>
And se...
Remove non-ascii character in string
...fo/unicode/char/200B/index.htm
https://en.wikipedia.org/wiki/Left-to-right_mark
Note that although the encoding of the embedded character is UTF-8, the encoding in the regular expression is not. Although the character is embedded in the string as three bytes (in my case) of UTF-8, the instructio...
Maximum Length of Command Line String
...
@LordTorgamus, The 32k limit is due to the UNICODE_STRING structure (ushort length). According to Raymond Chen's article on the subject CMD limits lines to 8192 characters (I'd assume the carrage return is the final character) and ShellExecuteEx limits to "INTERNET_MAX_URL_L...
How to echo with different colors in the Windows command line
...numpad and the left ALT key: L-ALT+0+2+7
– kayleeFrye_onDeck
Jan 21 '17 at 6:45
3
Btw, as someone...
Difference between local and global indexes in DynamoDB
...s from the index, not from the base table.
– ethanxyz_0
Aug 8 '17 at 2:00
1
@bsd It would make se...
How can prepared statements protect from SQL injection attacks?
...very SQL injection example shows it (all examples in PHP/Mysql):
$expected_data = 1;
$query = "SELECT * FROM users where id=$expected_data";
will produce a regular query
SELECT * FROM users where id=1
while this code
$spoiled_data = "1; DROP TABLE users;"
$query = "SELECT * FROM users...