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Move capture in lambda
...rref.move(); };
assert( lambda() );
assert( !lambda() );
}
The drawback here is that lambda is copyable and when copied the assertion in the copy constructor of rref_impl fails leading to a runtime bug. The following might be a better and even more generic solution because the compiler wi...
How I can I lazily read multiple JSON values from a file/stream in Python?
... That re won't work - the backslashes need escaping. Consider a raw string r'...'.
– Tom Swirly
Jun 19 '17 at 9:48
2
...
How does grep run so fast?
...actually looks at (and it skips many
bytes entirely).
GNU grep uses raw Unix input system calls and avoids copying data
after reading it. Moreover, GNU grep AVOIDS BREAKING THE INPUT INTO
LINES. Looking for newlines would slow grep down by a factor of
several times, because to find th...
Is it good practice to NULL a pointer after deleting it?
... So you're making the argument that there shouldn't have been a raw pointer in the first place, and anything involving said pointer shouldn't be blessed with the term "good practice"? Fair enough.
– Mark Ransom
Dec 18 '09 at 23:09
...
Do you (really) write exception safe code? [closed]
...can do something about a specific exception
You almost never want to see a raw new or delete in code
Eschew std::sprintf, snprintf, and arrays in general - use std::ostringstream for formatting and replace arrays with std::vector and std::string
When in doubt, look for functionality in Boost or STL ...
What causes javac to issue the “uses unchecked or unsafe operations” warning
...switch, it will give you more detailed information.
As well as the use of raw types (as described by the other answers), an unchecked cast can also cause the warning.
Once you've compiled with -Xlint, you should be able to rework your code to avoid the warning. This is not always possible, partic...
What is the usefulness of `enable_shared_from_this`?
...r this reason you must never create more than one shared_ptr from the same raw pointer.
– j_random_hacker
Apr 3 '09 at 2:31
4
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GOTO still considered harmful? [closed]
...ver possible. While it's possible to use goto to produce unmaintainable, sprawling code, it nevertheless remains in modern programming languages . Even the advanced continuation control structure in Scheme can be described as a sophisticated goto.
...
Copy Notepad++ text with formatting?
...ipboard] and set it to CTRL+SHIFT+C --> Instant joy. CTRL+C to copy the raw text, CTRL+SHIFT+C to copy with formatting. This should be default.
– Dennis G
Nov 8 '12 at 8:39
...
How to set the id attribute of a HTML element dynamically with angularjs (1.x)?
...
The ng-attr-id method is to ensure that the raw ng expression is never rendered in a valid HTML attribute (e.g. id, label, etc). This is to stop any downstream usage reading ng 'junk' (e.g. before render is complete, or after a js crash)
– Overfle...