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C++ new int[0] — will it allocate memory?
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I guarantee you that new int[0] costs you extra space since I have tested it.
For example,
the memory usage of
int **arr = new int*[1000000000];
is significantly smaller than
int **arr = new int*[1000000000];
for(int i =0; i < 1000000000; i++) {
arr[i]...
Items in JSON object are out of order using “json.dumps”?
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but since JSON is a string representation until it's parsed, string comparisons (such as in doctests) may still require order. So I wouldn't say it never matters.
– Michael Scott Cuthbert
Jun 23 '14 at 1:54...
Auto-fit TextView for Android
... fontFitTextView.setBackgroundColor(0xff00ff00);
final String text = getRandomText();
fontFitTextView.setText(text);
container.addView(fontFitTextView);
Log.d("DEBUG", "width:" + width + " height:" + height
+ " text:" + text...
Can the Android layout folder contain subfolders?
... that out is far from ideal. And for anyone still looking, setting up the extra "layout" subfolders is the solution to the URI is not registered problem.
– aroth
Aug 18 '16 at 6:45
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Best way to find if an item is in a JavaScript array? [duplicate]
...owsers that don't already have it. For example, see Erik Arvidsson's array extras (also, the associated blog post). And then you can use indexOf without worrying about browser support. Here's a slightly optimised version of his indexOf implementation:
if (!Array.prototype.indexOf) {
Array.proto...
Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...索。RTD 工作表函数使用以下语法：
"=RTD(ProgID, Server, String 1, String 2, ... String n)"
第一个变量 ProgID 表示Real-Time Data 服务器（RTD Server）的编程标识符 (ProgID)。Server 变量指示运行RTD Server的计算机的名称；如果RTD Server在本地运行...
Detect if a page has a vertical scrollbar?
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lol yeah I was debating whether or not to make the extra effort to write it because in many cases it's not needed.
– Andy E
Jan 27 '10 at 13:08
1
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Best way to check if object exists in Entity Framework?
... answers above.
Private Function ValidateUniquePayroll(PropertyToCheck As String) As Boolean
// Return true if Username is Unique
Dim rtnValue = False
Dim context = New CPMModel.CPMEntities
If (context.Employees.Any()) Then ' Check if there are "any" records in the Employee table
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E11000 duplicate key error index in mongodb mongoose
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var userSchema = new mongoose.Schema({
local: {
name: { type: String },
email : { type: String, require: true, index:true, unique:true,sparse:true},
password: { type: String, require:true },
},
facebook: {
id : { type: String },
token : { type:...
Check to see if python script is running
....pid ` >/dev/null && echo "Running" || echo "Not running"
For extra credit, you can use the atexit module to ensure that your program cleans up its pidfile under any circumstances (when killed, exceptions raised, etc.).
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