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How to undo 'git reset'?
...AD~: updating HEAD
d27924e HEAD@{1}: checkout: moving from d27924e0fe16776f0d0f1ee2933a0334a4787b4c
[...]
The first line says that HEAD 0 positions ago (in other words, the current position) is 3f6db14; it was obtained by resetting to HEAD~. The second line says that HEAD 1 position ago (in other ...
内存调试技巧：C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...覆盖
void f1(char *explanation)
{
char p1;
p1 = malloc(100);
(void) sprintf(p1,
"The f1 error occurred because of '%s'.",
explanation);
local_log(p1);
}
您看到问题了吗？除非 local...
byte[] to hex string [duplicate]
...x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F };
for (int x = 0, i = 0; i < Hex.Length; i += 2, x += 1)
{
Bytes[x] = (byte)(HexValue[Char.ToUpper(Hex[i + 0]) - '0'] << 4 |
HexValue[Char.ToUpper(Hex[i + 1]...
Rounded UIView using CALayers - only some corners - How?
... CGRect rect = CGRectMake(10, 10, 200, 100);
MyView *myView = [[MyView alloc] initWithFrame:rect];
[self.view addSubview:myView];
[super viewDidLoad];
}
MyView is just a UIImageView subclass:
@interface MyView : UIImageView
{
}
I'd never used graphics contexts before, but I managed ...
Remove tracking branches no longer on remote
... remote status. For example,
$ git branch -vv
master b900de9 [origin/master: behind 4] Fixed bug
release/v3.8 fdd2f4e [origin/release/v3.8: behind 2] Fixed bug
release/v3.9 0d680d0 [origin/release/v3.9: behind 2] Updated comments
bug/1234 57...
PermGen elimination in JDK 8
... collections : Special iterators for metadata for each collector
Want to deallocate class data concurrently and not during GC pause
Enable future improvements that were limited by PermGen.
The Permanent Generation (PermGen) space has completely been removed and is kind of replaced by a new space ca...
Pimpl idiom vs Pure virtual class interface
...ect it knows to be this.
On the user side of the code, a new A will first allocate sizeof(A) bytes of memory, then hand a pointer to that memory to the A::A() constructor as this.
If in a later revision of your library you decide to drop the integer, make it larger, smaller, or add members, there'...
How to forward declare a template class in namespace std?
...rs. Of course, I know that there are more template params for std::list (allocator I think). But, that is beside the point. Do I have to know the full template declaration of a template class to be able to forward declare it?
...
Which characters need to be escaped when using Bash?
...'\f' 26 E \& 40 - @ 5A - Z 74 - t
0D E $'\r' 27 E \' 41 - A 5B E \[ 75 - u
0E E $'\016' 28 E \( 42 - B 5C E \\ 76 - v
0F E $'\017' 29 E \) 43 - C 5D E \] 77 - w ...
How to Customize a Progress Bar In Android
..."
android:centerY="1.0"
android:endColor="#0d1522"
android:angle="270"
/>
</shape>
</item>
<!-- Define the progress properties like start color, end color etc -->
<item android:id="@android:id/progress">
...