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Build fat static library (device + simulator) using Xcode and SDK 4+
It appears that we can - theoretically - build a single static library that includes both simulator and iPhone and iPad.
10...
How to insert element into arrays at specific position?
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array_slice() can be used to extract parts of the array, and the union array operator (+) can recombine the parts.
$res = array_slice($array, 0, 3, true) +
array("my_key" => "my_value") +
array_slice($array, 3, count($...
How does the main() method work in C?
... be handled. */
extern int main(int argc, char **argv, char **envp);
void __start(void)
{
/* This is the real startup function for the executable.
It performs a bunch of library initialization. */
/* ... */
/* And then: */
exit(main(argc_from_somewhere, argv_from_somewhere, envp_from...
C-like structures in Python
...uct(NamedTuple):
foo: str
bar: int
baz: list
qux: User
my_item = MyStruct('foo', 0, ['baz'], User('peter'))
print(my_item) # MyStruct(foo='foo', bar=0, baz=['baz'], qux=User(name='peter'))
share
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How are GCC and g++ bootstrapped?
...ould produce the same results (identical binaries, discounting macros like __DATE__ and __TIME__ which vary even between invocations of the same compiler) as GCC compiled with [GCC compiled with [other]] - if not, that's a bug, and the 3-stage bootstrap build is designed to catch that.
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Is there a “goto” statement in bash?
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@ruakh Actually, many languages allow break LABEL_NAME;, rather than Bash's disgusting break INTEGER;.
– Sapphire_Brick
Jun 29 at 18:37
1
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Python Infinity - Any caveats?
...rough usual arithmetic calculations:
>>> 2.0**2
4.0
>>> _**2
16.0
>>> _**2
256.0
>>> _**2
65536.0
>>> _**2
4294967296.0
>>> _**2
1.8446744073709552e+19
>>> _**2
3.4028236692093846e+38
>>> _**2
1.157920892373162e+77
>>>...
What is the purpose of std::make_pair vs the constructor of std::pair?
What is the purpose of std::make_pair ?
7 Answers
7
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How to remove last n characters from every element in the R vector
... an example of what I would do. I hope it's what you're looking for.
char_array = c("foo_bar","bar_foo","apple","beer")
a = data.frame("data"=char_array,"data2"=1:4)
a$data = substr(a$data,1,nchar(a$data)-3)
a should now contain:
data data2
1 foo_ 1
2 bar_ 2
3 ap 3
4 b 4
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What are the rules about using an underscore in a C++ identifier?
...r parameters. If you've come from an MFC background, you'll probably use m_foo . I've also seen myFoo occasionally.
5 An...