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How to properly check if std::function is empty in C++11?
... an empty lambda doesn't really make sense. Behind the scenes the compiler converts a lambda expression into a struct (or class) definition, with the variables you capture stored as data members of this struct. A public function call operator is also defined, which is what allows you to invoke the l...
Algorithm to get the excel-like column name of a number
I'm working on a script that generate some Excel documents and I need to convert a number into its column name equivalent. For example:
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Default template arguments for function templates
...
On Windows, with all versions of Visual Studio you can convert this error (C4519) to a warning or disable it like so:
#ifdef _MSC_VER
#pragma warning(1 : 4519) // convert error C4519 to warning
// #pragma warning(disable : 4519) // disable error C4519
#endif
See more details ...
Convert character to ASCII code in JavaScript
How can I convert a character to its ASCII code using JavaScript?
10 Answers
10
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Convert a JSON string to object in Java ME?
Is there a way in Java/J2ME to convert a string, such as:
14 Answers
14
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Convert Datetime column from UTC to local time in select statement
I'm doing a few SQL select queries and would like to convert my UTC datetime column into local time to be displayed as local time in my query results. Note, I am NOT looking to do this conversion via code but rather when I am doing manual and random SQL queries against my databases.
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Rank function in MySQL
...orresponding ANSI standard SQL query for my requirement. Please help me to convert it to MySQL .
11 Answers
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How do I get a TextBox to only accept numeric input in WPF?
...ject.GetDataPresent(DataFormats.Text))
{
string text = Convert.ToString(e.DataObject.GetData(DataFormats.Text));
if (!IsValid(text, true))
{
e.CancelCommand();
}
}
else
{
e.CancelCommand();
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Convert array of strings into a string in Java
I want the Java code for converting an array of strings into an string.
13 Answers
13
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Convert decimal to hexadecimal in UNIX shell script
In a UNIX shell script, what can I use to convert decimal numbers into hexadecimal? I thought od would do the trick, but it's not realizing I'm feeding it ASCII representations of numbers.
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