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How can I get the behavior of GNU's readlink -f on a Mac?
...es, sys
libc = ctypes.CDLL('libc.dylib')
libc.realpath.restype = ctypes.c_char_p
libc.__error.restype = ctypes.POINTER(ctypes.c_int)
libc.strerror.restype = ctypes.c_char_p
def realpath(path):
buffer = ctypes.create_string_buffer(1024) # PATH_MAX
if libc.realpath(path, buffer):
ret...
How to create a trie in Python
...a linear search. But the search would be limited to the number of possible characters -- 27 if we include _end. Also, there's nothing to be gained by creating a massive list of nodes and accessing them by index as he suggests; you might as well just nest the lists.
Finally, I'll add that creating a...
Memory footprint of Haskell data types
...e) which take 2. GHC actually has a cache of small values of type Int and Char, so in many cases these take no heap space at all. A String only requires space for the list cells, unless you use Chars > 255.
An Int8 has identical representation to Int. Integer is defined like this:
data Integ...
Studies on optimal code width?
...ght Margin" in your IDE of choice, it is likely that it will default to 80 characters. I tend to change it to 120 for no reason other than it was the standard at a company I was with a few years back, and no other company has told me to do it differently.
...
What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
...: String s = GlobalStringObjectCache.get("hello");
– Charles Goodwin
May 30 '16 at 12:07
7
Copy-p...
Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
...| true true true true false false| true true true true false false
char | true true true true false false| true true true true false false
hyphn| true true true true false false| true true true true false false
two | -err- true -err- true -err- false| true true true tru...
How do you run a command for each line of a file?
... not too big and all files are well named (without spaces or other special chars like quotes), you could use shell command line expansion. Simply:
chmod 755 $(<file.txt)
For small amount of files (lines), this command is the lighter one.
xargs is the right tool
For bigger amount of files, or ...
What character to use to put an item at the end of an alphabetic list?
... _ ' to the item I want in first position.
Is there some sort of magical character I could use to put an item at the end of the list?
...
How to see if an object is an array without using reflection?
...d have to check if the object is an instanceof boolean[], byte[], short[], char[], int[], long[], float[], double[], or Object[], if you want to detect all array types.
Also, an int[][] is an instanceof Object[], so depending on how you want to handle nested arrays, it can get complicated.
For the t...
Passing a Bundle on startActivity()?
...always a String. As value you can use the primitive data types int, float, chars, etc. We can also pass Parceable and Serializable objects from one activity to other.
Intent intent = new Intent(context, YourActivity.class);
intent.putExtra(KEY, <your value here>);
startActivity(intent);
Ret...