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how to “reimport” module to python then code be changed after import
...rom foo import bar, the symbol foo doesn't get defined. You need to import sys then reload(sys.modules['foo']) or perhaps reload(sys.modules[bar.__module__])
– drevicko
Oct 28 '13 at 1:02
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Scala best way of turning a Collection into a Map-by-key?
...h a variable number of tuples. So use the map method on the collection to convert it into a collection of tuples and then use the : _* trick to convert the result into a variable argument.
scala> val list = List("this", "maps", "string", "to", "length") map {s => (s, s.length)}
list: List[(j...
Converting SVG to PNG using C# [closed]
I've been trying to convert SVG images to PNG using C#, without having to write too much code. Can anyone recommend a library or example code for doing this?
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How can I output the value of an enum class in C++11
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Unlike an unscoped enumeration, a scoped enumeration is not implicitly convertible to its integer value. You need to explicitly convert it to an integer using a cast:
std::cout << static_cast<std::underlying_type<A>::type>(a) << std::endl;
You may want to encapsulate ...
What does 'COLLATE SQL_Latin1_General_CP1_CI_AS' do?
...gs.
Server (i.e. Instance)-level controls:
Database-level Collation for system Databases: master, model, msdb, and tempdb.
Due to controlling the DB-level Collation of tempdb, it is then the default Collation for string columns in temporary tables (global and local), but not table variables.
Due ...
Windows git “warning: LF will be replaced by CRLF”, is that warning tail backward?
...o LF only.
That specific warning "LF will be replaced by CRLF" comes from convert.c#check_safe_crlf():
if (checksafe == SAFE_CRLF_WARN)
warning("LF will be replaced by CRLF in %s.
The file will have its original line endings
in your working directory.", path);
else /* i.e....
Integer to hex string in C++
How do I convert an integer to a hex string in C++ ?
17 Answers
17
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How to convert an Array to a Set in Java
I would like to convert an array to a Set in Java. There are some obvious ways of doing this (i.e. with a loop) but I would like something a bit neater, something like:
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What exactly does stringstream do?
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Sometimes it is very convenient to use stringstream to convert between strings and other numerical types. The usage of stringstream is similar to the usage of iostream, so it is not a burden to learn.
Stringstreams can be used to both read strings and write data into strings. It...
Divide a number by 3 without using *, /, +, -, % operators
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Use itoa to convert to a base 3 string. Drop the last trit and convert back to base 10.
// Note: itoa is non-standard but actual implementations
// don't seem to handle negative when base != 10.
int div3(int i) {
char str[42];
s...