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Why does the Scala compiler disallow overloaded methods with default arguments?
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I'd like to cite Lukas Rytz (from here):
The reason is that we wanted a deterministic naming-scheme for the
generated methods which return default arguments. If you write
def f(a: Int = 1)
the compiler generates
def f$default$1 = 1
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How to overload std::swap()
std::swap() is used by many std containers (such as std::list and std::vector ) during sorting and even assignment.
4 A...
How can I add the sqlite3 module to Python?
...ll me how to install the sqlite3 module alongside the most recent version of Python?
I am using a Macbook, and on the command line, I tried:
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Timeout on a function call
...0). Case you have a blocking I/O for 10 processes, using join(10) you have set them to wait all of them max 10 for EACH process that has started. Use daemon flag like this example stackoverflow.com/a/27420072/2480481. Of course u can pass flag daemon=True directly to multiprocessing.Process() functi...
Get keys from HashMap in Java
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A HashMap contains more than one key. You can use keySet() to get the set of all keys.
team1.put("foo", 1);
team1.put("bar", 2);
will store 1 with key "foo" and 2 with key "bar". To iterate over all the keys:
for ( String key : team1.keySet() ) {
System.out.println( key...
How to use Comparator in Java to sort
I learned how to use the comparable but I'm having difficulty with the Comparator. I am having a error in my code:
14 Answ...
Check if a value exists in pandas dataframe index
...Y', 'Y'], 'col3': [1, 2, 3, 4]}, columns=['col1', 'col2', 'col3'])
df = df.set_index(['col1', 'col2'])
in df.index works for the first level only when checking single index value.
'a' in df.index # True
'X' in df.index # False
Check df.index.levels for other levels.
'a' in df.index.lev...
How to copy a file to a remote server in Python using SCP or SSH?
...s not needed. For example, if you need a one time communication, you don't set up ssh key due to security reasons.
– orezvani
Nov 16 '14 at 17:58
add a comment
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How to define an enumerated type (enum) in C?
I'm not sure what is the proper syntax for using C enums. I have the following code:
13 Answers
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ctypes - Beginner
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