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When does invoking a member function on a null instance result in undefined behavior?
...results in undefined behavior" is mentioned in notes in both §1.9/4 and §8.3.2/4, it's never explicitly stated. (Notes are non-normative.)
However, one can try to deduced it from §3.10/2:
An lvalue refers to an object or function.
When dereferencing, the result is an lvalue. A null pointe...
Get specific line from text file using just shell script
...
208
sed:
sed '5!d' file
awk:
awk 'NR==5' file
...
How to make an unaware datetime timezone aware in python
...ze method:
import datetime
import pytz
unaware = datetime.datetime(2011, 8, 15, 8, 15, 12, 0)
aware = datetime.datetime(2011, 8, 15, 8, 15, 12, 0, pytz.UTC)
now_aware = pytz.utc.localize(unaware)
assert aware == now_aware
For the UTC timezone, it is not really necessary to use localize since th...
Why do we have map, fmap and liftM?
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answered Sep 18 '11 at 18:40
li.davidmli.davidm
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How do I get the function name inside a function in PHP?
... |
edited Apr 11 '18 at 16:17
totymedli
20.9k1818 gold badges102102 silver badges135135 bronze badges
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Can I make fast forwarding be off by default in git?
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285
Yes, there is --no-ff. You can configure merge options per branch, e.g.
git config branch.mast...
Separating class code into a header and cpp file
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8 Answers
8
Active
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Logging request/response messages when using HttpClient
..., mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], Headers:
{
Content-Type: application/json; charset=utf-8
}
"Hello, World!"
Response:
StatusCode: 200, ReasonPhrase: 'OK', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
Date: Fri, 20 Sep 2013 20:2...
How to access route, post, get etc. parameters in Zend Framework 2
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MatsemannMatsemann
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JavaScript ternary operator example with functions
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189
Heh, there are some pretty exciting uses of ternary syntax in your question; I like the last on...