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How to get object size in memory? [duplicate]
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This will put so much more. It adds the DLL name and version, ... this is not a way to calculate object size.
– Aliostad
Nov 1 '11 at 14:36
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rake db:schema:load vs. migrations
...e question here - if migrations can get slow and cumbersome as an app gets more complex and if we have the much cleaner rake db:schema:load to call instead, why do migrations exist at all?
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SQL Server Operating system error 5: “5(Access is denied.)”
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Difference between Pragma and Cache-Control headers?
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Although the answer of cnst below is much more complicated, it is also much more correct according to the specification. Pragma: no-cache is intended to be used only in requests (meaning "I want the original, not a cached copy") and its behaviour is not specified for...
Dynamically Changing log4j log level
...level is simple; modifying other portions of the configuration will pose a more in depth approach.
LogManager.getRootLogger().setLevel(Level.DEBUG);
The changes are permanent through the life cyle of the Logger. On reinitialization the configuration will be read and used as setting the level at r...
Generate a random date between two other dates
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Updated answer
It's even more simple using Faker.
Installation
pip install faker
Usage:
from faker import Faker
fake = Faker()
fake.date_between(start_date='today', end_date='+30y')
# datetime.date(2025, 3, 12)
fake.date_time_between(start_dat...
How to set initial size of std::vector?
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Which of these would be more efficient for a large number of insertions/deletions?
– ctor
Jul 12 '12 at 17:51
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Choose between ExecutorService's submit and ExecutorService's execute
...r
completion.
Personally I prefer the use of execute because it feels more declarative, although this really is a matter of personal preference.
To give more information: in the case of the ExecutorService implementation, the core implementation being returned by the call to Executors.newSingl...
What are rvalues, lvalues, xvalues, glvalues, and prvalues?
...e document. The sentence was removed because it became superfluous after a more precise explanation was added.
– max
Aug 21 '17 at 22:29
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