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How to shuffle a std::vector?
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user703016user703016
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Optimal way to concatenate/aggregate strings
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edited May 4 '17 at 19:24
GoldBishop
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Is There a Better Way of Checking Nil or Length == 0 of a String in Ruby?
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224
When I'm not worried about performance, I'll often use this:
if my_string.to_s == ''
# It's n...
Count table rows
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SELECT COUNT(*) FROM fooTable;
will count the number of rows in the table.
See the reference...
Returning multiple values from a C++ function
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SergeyA
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answered Nov 26 '08 at 15:22
RobRob
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Calculating distance between two points, using latitude longitude?
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edited Apr 20 '17 at 11:24
Neeme Praks
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answered...
gcc warning" 'will be initialized after'
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384
Make sure the members appear in the initializer list in the same order as they appear in the cla...
Is it possible to declare two variables of different types in a for loop?
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146
C++17: Yes! You should use a structured binding declaration. The syntax has been supported in ...
What is the difference between single-quoted and double-quoted strings in PHP?
...r in which single and double quotes are essentially equally fast since PHP 4.3 (Useless Optimizations toward the bottom, section C). Also, this benchmarks page has a single vs double quote comparison. Most of the comparisons are the same. There is one comparison where double quotes are slower than s...
Detect whether there is an Internet connection available on Android [duplicate]
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1430
The getActiveNetworkInfo() method of ConnectivityManager returns a NetworkInfo instance repres...