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Search and replace in bash using regular expressions
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Thanks so much! Out of curiosity, why did you switch from a one line version (in your original answer) to a two-liner?
– Lanaru
Oct 24 '12 at 5:30
9
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Check play state of AVPlayer
...gBlock: or addBoundaryTimeObserverForTimes:queue:usingBlock:.
Example is from Apple:
// Assume a property: @property (retain) id playerObserver;
Float64 durationSeconds = CMTimeGetSeconds([<#An asset#> duration]);
CMTime firstThird = CMTimeMakeWithSeconds(durationSeconds/3.0, 1);
CMTime se...
grep without showing path/file:line
... grep and only return the matching line? i.e. The path/filename is omitted from the results.
3 Answers
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What is the purpose of the EBP frame pointer register?
...sitive offsets.)
The idea that it is preventing a perfectly good register from being used in optimization raises the question: when and where is optimization actually worthwhile?
Optimization is only worthwhile in tight loops that 1) do not call functions, 2) where the program counter spends a sig...
How do you iterate through every file/directory recursively in standard C++?
...entation as close as possible to the standard.
An example, taken straight from the website:
bool find_file( const path & dir_path, // in this directory,
const std::string & file_name, // search for this name,
path & path_found ) // pla...
ipython: print complete history (not just current session)
...%hist or %history to print recent history, but this only prints history from current session.
3 Answers
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What do linkers do?
...ages have a standard library of routines to cover the basic stuff expected from that language. The linker links your OBJ file with this standard library. The linker can also link your OBJ file with other OBJ files. You can create other OBJ files that have functions that can be called by another OBJ ...
What is normalized UTF-8 all about?
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You might think that, but from the annex: "To transform a Unicode string into a given Unicode Normalization Form, the first step is to fully decompose the string". Thus even wehn running NFC, Q-Caron would first become become Q+Caron, and could not re...
How to Generate unique file names in C#
...s" is predictable and not thread-safe (as the same 'ticks' can be obtained from multiple threads/processes). This makes it not suitable for temp filename generation. Generating X..1..N may be suitable for user-facing tasks (ie. copy in Explorer), but is dubious for server work.
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Can pandas automatically recognize dates?
Today I was positively surprised by the fact that while reading data from a data file (for example) pandas is able to recognize types of values:
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