大约有 19,000 项符合查询结果（耗时：0.0325秒） [XML]
Why does volatile exist?
...one. Essentially we did this:
void waitForSemaphore()
{
volatile uint16_t* semPtr = WELL_KNOWN_SEM_ADDR;/*well known address to my semaphore*/
while ((*semPtr) != IS_OK_FOR_ME_TO_PROCEED);
}
Without volatile, the optimizer sees the loop as useless (The guy never sets the value! He's nuts, g...
How do I set the UI language in vim?
...very early on, and not re-read again later. So you really do need to set LC_ALL (or more specifically LC_MESSAGES) in your environment – or on non-Unixoid systems (eg. Windows), you can pass the --cmd switch (which executes the given command first thing, as opposed to the -c option):
gvim --cmd "...
How can I get last characters of a string
...tring method .substr() combined with the .length property.
var id = "ctl03_Tabs1";
var lastFive = id.substr(id.length - 5); // => "Tabs1"
var lastChar = id.substr(id.length - 1); // => "1"
This gets the characters starting at id.length - 5 and, since the second argument for .substr() is omi...
@selector() in Swift?
... for: .touchUpInside)
view.perform(#selector(UIView.insertSubview(_:aboveSubview:)),
with: button, with: otherButton)
The great thing about this approach? A function reference is checked by the Swift compiler, so you can use the #selector expression only with class/method pair...
How to delete or add column in SQLITE?
...re are external tables referring to this table one must call PRAGMA foreign_keys=OFF. In this case, after doing this sequence one must call PRAGMA foreign_keys=ON in order to re-enable foreign keys.
– PazO
Apr 11 '18 at 9:12
...
Container View Controller Examples [closed]
... package:
https://developer.apple.com/devcenter/download.action?path=/wwdc_2012/wwdc_2012_sample_code/wwdc_2012_session_code.dmg
There's also an example here:
https://github.com/toolmanGitHub/stackedViewControllers
share
...
Learning Python from Ruby; Differences and Similarities
...at to the collection each method (if list supported this method):
def some_operation(value):
...
collection.each(some_operation)
That doesn't flow very nicely. So, typically the following non-functional approach would be used in Python:
for value in collection:
...
Using resources in a sa...
A Java API to generate Java source files [closed]
...del/codemodel/2.6/…, it is CDDL + GPL glassfish.java.net/public/CDDL+GPL_1_1.html
– ykaganovich
Apr 18 '14 at 19:02
...
Is Chrome's JavaScript console lazy about evaluating arrays?
...confirmed Webkit bug that explains this issue: https://bugs.webkit.org/show_bug.cgi?id=35801 (EDIT: now fixed!)
There appears to be some debate regarding just how much of a bug it is and whether it's fixable. It does seem like bad behavior to me. It was especially troubling to me because, in Chro...
UITextView style is being reset after setting text property
I have UITextView *_masterText and after call method setText property font is being reset.
It's happening after I change sdk 7.
_masterText is IBOutlet , global and properties are set in storyboard. It's only me or this is general SDK bug?
...