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std::string to float or double
...t is a valid C++ syntax to convert a string to a double.
You can do it with the stringstream or boost::lexical_cast but those come with a performance penalty.
Ahaha you have a Qt project ...
QString winOpacity("0.6");
double temp = winOpacity.toDouble();
Extra note:
If the input data is a con...
Colorizing text in the console with C++
How can I write colored text to the console with C++? That is, how can I write different text with different colors?
12 Ans...
$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'
... of my Snipplr submissions "crap" because I used if ($_SERVER['REQUEST_METHOD'] == 'POST') instead of if ($_POST)
11 Ans...
Add a default value to a column through a migration
How do I add a default value to a column that already exists through a migration?
7 Answers
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“This project is incompatible with the current version of Visual Studio”
I was getting the below message from Visual Studio 2010.
15 Answers
15
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Convert a Unix timestamp to time in JavaScript
I am storing time in a MySQL database as a Unix timestamp and that gets sent to some JavaScript code. How would I get just the time out of it?
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How to create .ipa file using Xcode?
Please tell me the complete procedure to build my app & use it on real iPhone.
9 Answers
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Convert object string to JSON
How can I convert a string that describes an object into a JSON string using JavaScript (or jQuery)?
20 Answers
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BLE（一）概述&工作流程&常见问题 - 创客硬件开发 - 清泛IT社区，...
文章源自：https://www.gandalf.site/2018/11/ble.html
0x1 BLE概述“蓝牙”，即Bluetooth，是斯堪的纳维亚语中 Blåtand / Blåtann 的英化版本。该词是十世纪的一位国王Harald Bluetooth的绰号，相传他将纷争不断的丹麦部落统一为一个王国，并引...
How do I disable directory browsing?
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Create an .htaccess file containing the following line:
Options -Indexes
That is one option. Another option is editing your apache configuration file.
In order to do so, you first need to open it with the command:
vim /etc/httpd/co...