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Converting a List to a comma separated string
Is there a way to take a List and convert it into a comma separated string?
8 Answers
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How does UTF-8 “variable-width encoding” work?
...
UTF-8 was another system for storing
your string of Unicode code points,
those magic U+ numbers, in memory
using 8 bit bytes. In UTF-8, every
code point from 0-127 is stored in a
single byte. Only code points 128 and
above are stored using 2, 3, in fact,
...
how to listen to N channels? (dynamic select statement)
... true if the channel has not been closed.
ch := chans[chosen]
msg := value.String()
You can experiment with a more fleshed out example here: http://play.golang.org/p/8zwvSk4kjx
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improve thi...
Struct Constructor in C++?
...s.
struct blocknode
{
unsigned int bsize;
bool free;
unsigned char *bptr;
blocknode *next;
blocknode *prev;
blocknode(unsigned int sz, unsigned char *b, bool f = true,
blocknode *p = 0, blocknode *n = 0) :
bsize(sz), free(f), bptr(b), prev(p), ne...
Is C++14 adding new keywords to C++?
...ch else namespace static_assert using
char enum new static_cast virtual
char16_t explicit noexcept struct void
char32_t export nullptr switch ...
How does functools partial do what it does?
...e code more readable. re.search method's signature is:
search(pattern, string, flags=0)
By applying partial we can create multiple versions of the regular expression search to suit our requirements, so for example:
is_spaced_apart = partial(re.search, '[a-zA-Z]\s\=')
is_grouped_together = ...
What's the best way to share data between activities?
...in the intent's extras or saving it somewhere else. If data is primitives, Strings or user-defined objects: send it as part of the intent extras (user-defined objects must implement Parcelable). If passing complex objects save an instance in a singleton somewhere else and access them from the launch...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...r was std::copy.
I wrote a C++ SHA-2 implementation. In my test, I hash 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my results. I ran the test 5 times each, alternating...
How to create a tuple with only one element
... would expect all the elements to be tuples, why is a tuple converted to a string when it only contains a single string?
3 ...
How to prevent multiple instances of an Activity when it is launched with different Intents
...new App());
if(!IsTaskRoot) {
Intent intent = Intent;
string action = intent.Action;
if(intent.HasCategory(Intent.CategoryLauncher) && action != null && action.Equals(Intent.ActionMain, System.StringComparison.OrdinalIgnoreCase)) {
System.Cons...