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What are the new documentation commands available in Xcode 5? [closed]
...e brief text (with no formatting); if no brief text exists, it will show a concatenation of all the text up to the first @block; if none exists (e.g. you begin with @return), then it will concat all the text striping away all @commands.
2. Option-clicking an identifier name:
3. In the Quick Help...
How do I match any character across multiple lines in a regular expression?
... is:
/(.*)<FooBar>/s
The s at the end causes the dot to match all characters including newlines.
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Difference between const & const volatile
...be the status register for a serial port. Various bits will indicate if a character is waiting to be read or if the transmit register is ready to accept a new character (ie., - it's empty). Each read of this status register could result in a different value depending on what else has occurred in t...
Parsing a comma-delimited std::string [duplicate]
...
Input one number at a time, and check whether the following character is ,. If so, discard it.
#include <vector>
#include <string>
#include <sstream>
#include <iostream>
int main()
{
std::string str = "1,2,3,4,5,6";
std::vector<int> vect;
...
How to convert DateTime to VarChar
...ver 2005 where I need to convert a value in DateTime variable into a varchar variable in yyyy-mm-dd format (without time part). How do I do that?
...
Re-open *scratch* buffer in Emacs?
...(let ((n 0)
bufname)
(while (progn
(setq bufname (concat "*scratch"
(if (= n 0) "" (int-to-string n))
"*"))
(setq n (1+ n))
(get-buffer bufname)))
(switch-to-buffer (get-buffer-...
json_encode is returning NULL?
... you are retrieving data in non-utf8 encoding: try to put mysql_query('SET CHARACTER SET utf8') before your SELECT query.
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How to generate a random alpha-numeric string?
...
Algorithm
To generate a random string, concatenate characters drawn randomly from the set of acceptable symbols until the string reaches the desired length.
Implementation
Here's some fairly simple and very flexible code for generating random identifiers. Read the informati...
What does the `forall` keyword in Haskell/GHC do?
... b)
ghci> liftTup (\x -> [x]) (5, "Hello")
No instance for (Num [Char])
...
ghci> -- huh?
ghci> :t liftTup
liftTup :: (t -> t1) -> (t, t) -> (t1, t1)
"Hmm.. why does GHC infer that the tuple must contain two of the same type? Let's tell it they don't have to be"
-- te...
C++ Structure Initialization
...er. And dot notation is way safer if you happen to add the same type (like char*) as one of the other members above or below in the structure, because there's no risk of swapping them.
– Gui13
Nov 16 '16 at 9:21
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