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Shorter syntax for casting from a List to a List?
...comply.
– StuartLC
May 22 '18 at 14:32
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Heroku error: “Permission denied (public key)”
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ElGavilan
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answered Aug 14 '10 at 4:47
SathishSathish
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Ruby send vs __send__
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32
If you really need send to behave like it would normally do, you should use __send__, because i...
Java code To convert byte to Hexadecimal
...ffffffff"
The 8-bit byte, which is signed in Java, is sign-extended to a 32-bit int. To effectively undo this sign extension, one can mask the byte with 0xFF.
byte b = -1;
System.out.println(Integer.toHexString(b & 0xFF));
// prints "ff"
Another issue with using toHexString is t...
What's the difference between using CGFloat and float?
...e types were introduced to make it easier to write code that works on both 32-bit and 64-bit without modification. However, if all you need is float precision within your own code, you can still use float if you like — it will reduce your memory footprint somewhat. Same goes for integer values.
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Wrapping StopWatch timing with a delegate or lambda?
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32
Here's what I've been using:
public class DisposableStopwatch: IDisposable {
private reado...
Run command on the Ansible host
... you just want to run a single task on your Ansible host, you can use local_action to specify that a task should be run locally. For example:
- name: an example playbook
hosts: webservers
tasks:
- ...
- name: check out a git repository
local_action: git repo=git://foosball.example.org/...
Remove all whitespaces from NSString
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AliSoftwareAliSoftware
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MFC Dialog中嵌入View、动态创建View的方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的需要手动调一下。代码如下，亲测有效：
//.h
CView *m_pDemoView;
//.cpp 构造函数或OnInitDialog函数
CMainContainer::OnInitDialog() //CDialog才有，像CWnd等没有OnInitDialog可以放在构造函数中，然后OnPaint()函数中改变大小并显示。
{
m_pDem...
How to identify platform/compiler from preprocessor macros?
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For Mac OS:
#ifdef __APPLE__
For MingW on Windows:
#ifdef __MINGW32__
For Linux:
#ifdef __linux__
For other Windows compilers, check this thread and this for several other compilers and architectures.
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