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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...printf, 1, 2)));
如果带有该属性的自定义函数追加到库的头文件里，那么所以调用该函数的程序都要做相应的检查。
和非GNU编译器的兼容性
庆幸的是，__attribute__设计的非常巧妙，很容易作到和其它编译器保持兼容，也就是说...
Linux的诞生和发展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...准的兼容做好了准备工作。在0.01 版的内核/include/unistd.h 文件中就已经定义了几个有关POSXI 标准要求的常数符号，并且在注释中就写到"ok，这也许是个玩笑，但我正在着手研究它呢"。
1991 年7 月3 日在comp.os.minix 上发布的pos...
How do I print the type or class of a variable in Swift?
... // "Swift.Int"
println(Bool.self) // "Swift.Bool"
println([UTF8].self) // "Swift.Array<Swift.UTF8>"
println((Int, String).self) // "(Swift.Int, Swift.String)"
println((String?()).dynamicType)// "Swift.Optional<Swift.String>"
println(NSDate) ...
How to make an HTTP request + basic auth in Swift
...sername, password)
let loginData = loginString.data(using: String.Encoding.utf8)!
let base64LoginString = loginData.base64EncodedString()
// create the request
let url = URL(string: "http://www.example.com/")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Basic \(...
How should I store GUID in MySQL tables?
...ing said value with a value mapped from a lookup table (in most cases now, UTF8). A BINARY field expects the same kind of value without any intention of representing said data from a lookup table. I used CHAR(16) back in the 4.x days because back then MySQL wasn't as good as it is now.
...
bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...印消息头。
探针可以关联动作，把动作放到{}中。
3. 文件打开
# bpftrace -e 'tracepoint:syscalls:sys_enter_openat { printf("%s %s\n", comm, str(args->filename)); }'
Attaching 1 probe...
snmp-pass /proc/cpuinfo
snmp-pass /proc/stat
snmpd /proc/net/dev
snmpd /proc/ne...
iOS: how to perform a HTTP POST request?
...String *responseText = [[NSString alloc] initWithData:self.data encoding:NSUTF8StringEncoding];
// Do anything you want with it
[responseText release];
}
// Handle basic authentication challenge if needed
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:...
PDO closing connection
...
PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8mb4 COLLATE utf8mb4_general_ci",
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
)
);
} catch (PDOException $e) {
...
How to use UTF-8 in resource properties with ResourceBundle
...XX format. The below example converts a UTF-8 encoded properties file text_utf8.properties to a valid ISO-8859-1 encoded properties file text.properties.
native2ascii -encoding UTF-8 text_utf8.properties text.properties
When using a sane IDE such as Eclipse, this is already automatically done when...
HTTP GET Request in Node.js Express
... console.log(`${options.host} : ${res.statusCode}`);
res.setEncoding('utf8');
res.on('data', (chunk) => {
output += chunk;
});
res.on('end', () => {
let obj = JSON.parse(output);
onResult(res.statusCode, obj);
});
});
req.on('error', (err) => {...