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Objective-C : BOOL vs bool
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From the definition in objc.h:
#if (TARGET_OS_IPHONE && __LP64__) || TARGET_OS_WATCH
typedef bool BOOL;
#else
typedef signed char BOOL;
// BOOL is explicitly signed so @encode(BOOL) == "c" rather than "C"
// even if -funsigned-c...
Check if a folder exist in a directory and create them using C#
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This should help:
using System.IO;
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string path = @"C:\MP_Upload";
if(!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
share
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impro...
Check if object is file-like in Python
..., e.g. have a read() and a write method(), but have a different implementation. It is and realization of the Duck Typing concept.
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How to properly add cross-site request forgery (CSRF) token using PHP
...id() only adds up to 29 bits of entropy
md5() doesn't add entropy, it just mixes it deterministically
Try this out:
Generating a CSRF Token
PHP 7
session_start();
if (empty($_SESSION['token'])) {
$_SESSION['token'] = bin2hex(random_bytes(32));
}
$token = $_SESSION['token'];
Sidenote: One ...
How to serialize an object into a string
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Sergio:
You should use BLOB. It is pretty straighforward with JDBC.
The problem with the second code you posted is the encoding. You should additionally encode the bytes to make sure none of them fails.
If you still want to ...
Open an IO stream from a local file or url
... contains either a path to a local file or a url and open it as a readable IO stream.
1 Answer
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App Inventor 2 物联网入门的两个方向：BLE直连硬件 vs MQTT云端通信，你的...
... → BLE 是不二之选。
选型建议
• 如果你做的是单机版智能硬件原型（遥控灯、智能锁、温度计）→ 选 BLE，成本低、开发快、无需网络环境
• 如果你需要远程查看设备状态（远程监控、数据仪表盘）→ 选 MQTT，必须经过...
Is it possible to have a Subversion repository as a Git submodule?
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@xhan yes, and I am not advocating mixing git-svn and submodules in the same repository. The clone that uses git-svn is only a bridge to creating a native git clone of the svn repository.
– richq
Dec 22 '10 at 9:58
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change text of button and disable button in iOS
How do you change the text of the button and disable a button in iOS?
8 Answers
8
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What is the difference between Pan and Swipe in iOS?
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By definition, a swipe gesture is necessarily also a pan gesture -- both involve translational movement of touch points. The difference is in the recognizer semantics: a pan recognizer looks for the beginning of translational movement ...