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Return a `struct` from a function in C
...return a struct from a function, to which I replied: "No! You'd return pointers to dynamically malloc ed struct s instead."
...
showDialog deprecated. What's the alternative?
....com/reference/android/app/Activity.html
public final void showDialog (int id) Added in API level 1
This method was deprecated in API level 13. Use the new DialogFragment
class with FragmentManager instead; this is also available on older
platforms through the Android compatibility pack...
Is it feasible to compile Python to machine code?
...e code dynamically. You should choose carefully which methods/functions to convert, though.
Use Cython, which is a Python-like language that is compiled into a Python C extension
Use PyPy, which has a translator from RPython (a restricted subset of Python that does not support some of the most "dyna...
Using custom fonts using CSS?
...rowsers; you can use fontsquirrel.com's generator to avoid too much effort converting.
You can find a nice set of free web-fonts provided by Google Fonts (also has auto-generated CSS @font-face rules, so you don't have to write your own).
while also preventing people from having free access to ...
COALESCE Function in TSQL
...f same datatype or must be of matching-types (that can be "implicitly auto-converted" into a compatible datatype), see examples below:
PRINT COALESCE(NULL, ('str-'+'1'), 'x') --returns 'str-1, works as all args (excluding NULLs) are of same VARCHAR type.
--PRINT COALESCE(NULL, 'text', '3', 3) -...
Get current time in milliseconds in Python?
...e's what I did, based on @samplebias' comment above:
import time
millis = int(round(time.time() * 1000))
print millis
Quick'n'easy. Thanks all, sorry for the brain fart.
For reuse:
import time
current_milli_time = lambda: int(round(time.time() * 1000))
Then:
>>> current_milli_time(...
What happens to a declared, uninitialized variable in C? Does it have a value?
...Static variables (file scope and function static) are initialized to zero:
int x; // zero
int y = 0; // also zero
void foo() {
static int x; // also zero
}
Non-static variables (local variables) are indeterminate. Reading them prior to assigning a value results in undefined behavior.
void foo(...
What should a Multipart HTTP request with multiple files look like? [duplicate]
...ntains binary data, so I'm not posting the request as such - instead, I've converted every non-printable-ascii character into a dot (".").
POST /cgi-bin/qtest HTTP/1.1
Host: aram
User-Agent: Mozilla/5.0 Gecko/2009042316 Firefox/3.0.10
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/...
How to sort in-place using the merge sort algorithm?
...g.
For example like the following merge function.
void wmerge(Key* xs, int i, int m, int j, int n, int w) {
while (i < m && j < n)
swap(xs, w++, xs[i] < xs[j] ? i++ : j++);
while (i < m)
swap(xs, w++, i++);
while (j < n)
swap(xs, w++, j+...
OceanBase使用libeasy原理源码分析：客户端 - 数据库(内核) - 清泛网 - 专...
...libeasy的如下两个上层接口：
easy_session_t *easy_session_create(int64_t asize)
int easy_client_dispatch(easy_io_t *eio, easy_addr_t addr, easy_session_t *s)
首先看看session这个关键的数据结构：
#define EASY_MESSAGE_SESSION_HEADER \
easy_connection_t *c; \
e...