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How can I produce an effect similar to the iOS 7 blur view?
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This does not work on iPhone 4 running iOS 7. It is probably because on iPhone 4, since the GPU power is too low, the system does not add the usual blur effect to it's UITabBar itself.
– Ayush Goel
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Best algorithm for detecting cycles in a directed graph [closed]
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How does finding the strongly connected components tell you about the cycles that exist in the graph?
– Peter
Mar 29 '10 at 17:21
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Why does find -exec mv {} ./target/ + not work?
...sion of c or p.
Note that +, contrary to ; is not special in any shell so doesn't need to be quoted (though quoting won't harm, except of course with shells like rc that don't support \ as a quoting operator).
The trailing / in /dest/dir/ is so that mv fails with an error instead of renaming foo.c...
Difference between a user and a schema in Oracle?
...so automatically creates a schema for that user.
The CREATE SCHEMA command does not create a "schema" as it implies, it just allows you to create multiple tables and views and perform multiple grants in your own schema in a single transaction.
For all intents and purposes you can consider a user to ...
How is location accuracy measured in Android?
Does anyone know the proper interpretation of the accuracy measurements returned by getAccuracy()? For instance, are they calculated as:
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Pandas count(distinct) equivalent
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This does not address the question asked.
– Aaron Schumacher
Jan 16 '18 at 19:21
7
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How to make a variadic macro (variable number of arguments)
...## is not needed and is not portable. #define FOO(...) printf(__VA_ARGS__) does the job the portable way; the fmt parameter can be omitted from the definition.
– alecov
Jun 11 '12 at 20:14
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check if a std::vector contains a certain object? [duplicate]
...egin(), v.end(), x) != v.end()) {
/* v contains x */
} else {
/* v does not contain x */
}
Checking if v contains elements (is non-empty):
if(!v.empty()){
/* v is non-empty */
} else {
/* v is empty */
}
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Why shouldn't all functions be async by default?
...erations. The vast majority of your operations are not high latency, so it doesn't make any sense to take the performance hit that mitigates that latency. Rather, a key few of your operations are high latency, and those operations are causing the zombie infestation of async throughout the code.
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In plain English, what does “git reset” do?
...ou want:
- A - B - C (master)
\
D (HEAD)
Remember, reset doesn't make commits, it just updates a branch (which is a pointer to a commit) to point to a different commit. The rest is just details of what happens to your index and work tree.
Use cases
I cover many of the main use ca...