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Bootstrap 3: Keep selected tab on page refresh
...lic.com/faq/how-to-keep-the-current-tab-active-on-page-reload-in-bootstrap.php
https://www.w3schools.com/bootstrap/bootstrap_ref_js_tab.asp
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Why isn't sizeof for a struct equal to the sum of sizeof of each member?
...rency-guarantees might be broken, leading to subtle errors.
Here's an example using typical settings for an x86 processor (all used 32 and 64 bit modes):
struct X
{
short s; /* 2 bytes */
/* 2 padding bytes */
int i; /* 4 bytes */
char c; /* 1 byte */
/* ...
I lose my data when the container exits
...t it in the background
docker attach f357e2faab77 # reattach the terminal & stdin
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Selenium wait until document is ready
...
This is a working Java version of the example you gave :
void waitForLoad(WebDriver driver) {
new WebDriverWait(driver, 30).until((ExpectedCondition<Boolean>) wd ->
((JavascriptExecutor) wd).executeScript("return document.readyState").equ...
What is the correct way of using C++11's range-based for?
...odifying them in place.
Observing the elements
Let's consider a simple example:
vector<int> v = {1, 3, 5, 7, 9};
for (auto x : v)
cout << x << ' ';
The above code prints the elements (ints) in the vector:
1 3 5 7 9
Now consider another case, in which the vector eleme...
Mathematical functions in Swift
...
UIKit, Cocoa, Foundation, all valid choices.
– erdekhayser
Nov 27 '14 at 20:26
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How can I get rid of an “unused variable” warning in Xcode?
...to suppress that warning:
BOOL saved __attribute__((unused)) = [moc save:&error];
Alternatively (in case LLVM doesn't support the above), you could split the variable declaration into a separate line, guaranteeing that the variable would be "used" whether the macro expands or not:
BOOL saved...
CPU指令集avx程序无法运行，运行崩溃 - C/C++ - 清泛网 - 专注C/C++及内核技术
...，因为cpu指令即使不支持的情况下，__AVX__, __AVX2__, __AVX512F__ 等编译宏往往也被定义了，因此不能使用宏控制。应使用cpuid来判断是否支持，然后程序启动后动态指定函数指针到不同的函数实现。avx,avx2
TCP: can two different sockets share a port?
...happens when a server listen for incoming connections on a TCP port? For example, let's say you have a web-server on port 80. Let's assume that your computer has the public IP address of 24.14.181.229 and the person that tries to connect to you has IP address 10.1.2.3. This person can connect to you...
SVN Commit specific files
...
Sure. Just list the files:
$ svn ci -m "Fixed all those horrible crashes" foo bar baz graphics/logo.png
I'm not aware of a way to tell it to ignore a certain set of files. Of course, if the files you do want to commit are easily listed by the shell, you can use that:
...