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Linux日志切分工具：Logrotate - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，但为了高可用性，这往往不能接受。还好Logrotate提供了一个名为copytruncate的指令，此方法采用的是先拷贝再清空的方式，整个过程中日志文件的操作句柄没有发生改变，所以不需要通知应用程序重新打开日志文件，但是需要注...
Why can't Python's raw string literals end with a single backslash?
...also that a
single backslash followed by a newline
is interpreted as those two characters
as part of the string, not as a line
continuation.
So raw strings are not 100% raw, there is still some rudimentary backslash-processing.
...
How to identify platform/compiler from preprocessor macros?
I'm writing a cross-platform code, which should compile at linux, windows, Mac OS. On windows, I must support visual studio and mingw.
...
In OS X Lion, LANG is not set to UTF-8, how to fix it?
I try to setup postgress in OS X Lion, and find that is not correctly setup the LOCALE environment var.
5 Answers
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Do Swift-based applications work on OS X 10.9/iOS 7 and lower?
Will Swift-based applications work on OS X 10.9 (Mavericks)/iOS 7 and lower?
19 Answers
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Argparse optional positional arguments?
...ill need more than one dir)
parser.add_argument('dir', nargs='?', default=os.getcwd())
extended example:
>>> import os, argparse
>>> parser = argparse.ArgumentParser()
>>> parser.add_argument('-v', action='store_true')
_StoreTrueAction(option_strings=['-v'], dest='v', ...
How do I determine the target architecture of static library (.a) on Mac OS X?
...
Unfortunately this hasn't worked for several OS versions.
– rmcclellan
Mar 30 '17 at 15:24
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c++文件流基本用法(ifstream, ostream,fstream) - C/C++ - 清泛网 - 专注C/C++及内核技术
...件末尾开始写
ios::binary 二进制模式
ios::nocreate 打开一个文件时，如果文件不存在，不创建文件。
ios::noreplace 打开一个文件时，如果文件不存在，创建该文件
ios::trunc 打开一个文件，然后清空内容
ios::ate 打开一个文件时...
VC/MFC 临界区域使用方法实例 - C/C++ - 清泛网 - 专注C/C++及内核技术
...问，实现线程的同步操作。保证只能由先进入临界区域的一个线程...临界区域的作用：避免临界区域内的数据(一般为共享的资源)被不同的线程同时访问，实现线程的同步操作。保证只能由先进入临界区域的一个线程访问结束后...
WSAAsyncSelect模型 - C/C++ - 清泛网 - 专注C/C++及内核技术
...yncSelect自动把套接字设为非阻塞模式，并且为套接字绑定一个窗口句柄，当有网络事件发生时，便向这个窗口发送消息。
int WSAAsyncSelect(
SOCKET s, //需要设置的套接字句柄
HWND hWnd, //指定一个窗口句柄, 套接...