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How to remove certain characters from a string in C++?
...s that are in positions where ()- aren't." And since each one is done at a time, shouldn't it remove ALL characters? I've read the documentation on both functions, and this makes no sense to me. cplusplus.com/reference/algorithm/remove cplusplus.com/reference/string/string/erase
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How to reverse-i-search back and forth? [duplicate]
I use reverse-i-search often, and that's cool. Sometime though when pressing CTRL + r multiple times, I pass the command I am actually looking for. Because CTRL + r searches backward in history, from newest to oldest, I have to:
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./
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MikeSchem, you just took me through a time machine.
– pixelbobby
Apr 24 at 2:26
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The application may be doing too much work on its main thread
...oreographer lets apps to connect themselves to the vsync, and
properly time things to improve performance.
Android view animations internally uses Choreographer for the same
purpose: to properly time the animations and possibly improve
performance.
Since Choreographer i...
How do I perform the SQL Join equivalent in MongoDB?
...r objects in a single query. But MongoDB does not support joins and so, at times, requires bit of denormalization. Here, this means caching the 'username' attribute.
Relational purists may be feeling uneasy already, as if we were violating some universal law. But let’s bear in mind that MongoDB co...
Java String - See if a string contains only numbers and not letters
...rations and 5 test iterations.
Results
Note that parseLong is almost 100 times slower than isDigit for first test load.
## Test load with 25% valid strings (75% strings contain non-digit symbols)
Benchmark Mode Cnt Score Error Units
testIsDigit thrpt 5 9.275 ± 2.348 ops/s
tes...
Best way to store time (hh:mm) in a database
I want to store times in a database table but only need to store the hours and minutes.
I know I could just use DATETIME and ignore the other components of the date, but what's the best way to do this without storing more info than I actually need?
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Merge and interleave two arrays in Ruby
...he;s working with. consider: [].zip[1, 2] => nil (going to have a hard time calling #flatten on that) [3,4].zip([1, 3, 5, 7]) => [[3, 1], [4, 3]] (oops, guess we don't care about the last few elements in the 2nd array)
– hoff2
Jan 22 '14 at 22:13
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How does the compilation/linking process work?
...ch is why it must be used with care.
It works on one C++ source file at a time by replacing #include directives with the content of the respective files (which is usually just declarations), doing replacement of macros (#define), and selecting different portions of text depending of #if, #ifdef and...
How to implement a rule engine?
...notified of failure or success.
Generating an in-memory assembly is a 1-time occurrence during your application and you get a performance gain by not having to use reflection when evaluating your rules. Your expressions are checked at runtime as the assembly will not generate correctly if a prop...