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Make git automatically remove trailing whitespace before committing
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Those settings (core.whitespace and apply.whitespace) are not there to remove trailing whitespace but to:
core.whitespace: detect them, and raise errors
apply.whitespace: and strip them, but only during patch, not "always automatically"
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what's the correct way to send a file from REST web service to client?
...d application/octect-streamusing one of the factory methods of javax.ws.rs.core.Response (part of the JAX-RS API, so you're not locked into Jersey):
@GET
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response getFile() {
File file = ... // Initialize this to the File path you want to serve...
开源邮件传输代理软件 -- Postfix 介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...兼容性。1. postfix是免费的：
postfix想要作用的范围是广大的Internet用户，试图影响大多数的Internet上的电子邮件系统，因此它是免费的。
2. 更快：
postfix在性能上大约比sendmail快三倍。一部运行postfix的台式PC每天可以收发上...
What is a “thread” (really)?
... is an independent set of values for the processor registers (for a single core). Since this includes the Instruction Pointer (aka Program Counter), it controls what executes in what order. It also includes the Stack Pointer, which had better point to a unique area of memory for each thread or els...
select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
...把fd_set从内核空间拷贝到用户空间。
总结：
select的几大缺点：
（1）每次调用select，都需要把fd集合从用户态拷贝到内核态，这个开销在fd很多时会很大
（2）同时每次调用select都需要在内核遍历传递进来的所有fd，这个开销...
When do I really need to use atomic instead of bool? [duplicate]
...ions will work in a similar way for bool and atomic<bool>. But multi-core CPU and missed memory barrier is something that will happen with nearly 100% chance for any modern application and hardware
– Ezh
Sep 2 '18 at 9:53
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开源MQTT网关：EMQX vs Mosquitto - 创客硬件开发 - 清泛IT社区，为创新赋能！
...键业务场景。EMQX 采用 Erlang/OTP 编写，这是一种用于构建大规模可扩展软实时系统的编程语言。与 Mosquitto 不同，EMQX 在设计之初即采用了分布式集群架构，可以轻松实现弹性水平扩展，从而稳定承载大规模的 MQTT 客户端接入。最...
Android emulator freezing OS X v10.9 (Mavericks) with HAXM
...554 [2014-01-28 13:13:16 - HelloWorld] Waiting for HOME ('android.process.acore') to be launched...". However, the emulator for an AVD with x86 CPU (and no host GPU acceleration) hangs here showing the android logo.
– Snowcrash
Jan 28 '14 at 13:29
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BSS段、数据段、代码段、堆与栈 剖析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...指用来存放程序执行代码的一块内存区域。这部分区域的大小在程序运行前就已经确定，并且内存区域通常属于只读, 某些架构也允许代码段为可写，即允许修改程序。在代码段中，也有可能包含一些只读的常数变量，例如字符...
Where can I find the “clamp” function in .NET?
... - since this is quite a low-level function, it should probably go in some core namespace in your project. You can then use the method in any code file that contains a using directive for the namespace e.g.
using Core.ExtensionMethods
int i = 4.Clamp(1, 3);
.NET Core 2.0
Starting with .NET Core 2....