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Compiling simple Hello World program on OS X via command line
...ugh I prefer a slightly more verbose approach:
#include <iostream>
int main()
{
std::cout << "Hello world!" << std::endl;
}
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Is there a MySQL option/feature to track history of changes to records?
...dozen audit tables.
Instead, you can bake the concept of change over time into your schema design (this is the second option Keethanjan suggests). This is a change to your application, definitely at the business logic and persistence level, so it's not trivial.
For example, if you have a table li...
How to get first character of a string in SQL?
... @thomasrutter, Looking at an execution plan, SQL Server (at least 2008R2) internally translates LEFT(colName, length) into SUBSTRING(colName, 1, length). So there is no any optimizations here, it's just a preference.
– Alexander Abakumov
Sep 15 '14 at 15:15
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What specific productivity gains do Vim/Emacs provide over GUI text editors?
...m gives you very specific and foolproof ways of setting file encodings and converting between them. The very first thing that impressed me about Vim is how perfectly it handles tab/space indentation options and Unix/DOS linebreaks compared to other editors that I had problems with at the time.
Man...
Mimicking sets in JavaScript?
...ray of all keys in the Set
// returns the original key (not the string converted form)
keys: function() {
var results = [];
this.each(function(data) {
results.push(data);
});
return results;
},
// clears the Set
clear: function() {
...
How do I pass a unique_ptr argument to a constructor or a function?
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Here are the possible ways to take a unique pointer as an argument, as well as their associated meaning.
(A) By Value
Base(std::unique_ptr<Base> n)
: next(std::move(n)) {}
In order for the user to call this, they must do one of the following:
Base newBase(st...
What does CultureInfo.InvariantCulture mean?
...ates and decimal / currency values.
This will matter for you when you are converting input values (read) that are stored as strings to DateTime, float, double or decimal. It will also matter if you try to format the aforementioned data types to strings (write) for display or storage.
If you know...
Which types can be used for Java annotation members?
Today I wanted to create my first annotation interface following this documentation and I got this compiler error
4 Answ...
Yii2 data provider default sorting
...
$modelProduct = new Product();
$shop_id = (int)Yii::$app->user->identity->shop_id;
$queryProduct = $modelProduct->find()
->where(['product.shop_id' => $shop_id]);
$dataProviderProduct = new ActiveD...
How to printf uint64_t? Fails with: “spurious trailing ‘%’ in format”
I wrote a very simple test code of printf uint64_t:
3 Answers
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