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https://www.tsingfun.com/it/opensource/2487.html 

git拉取子模块方法 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

... update --init xxx 更新子模块: # 适用于git 1.8.2及以上版本 git submodule update --recursive --remote # 适用于git 1.7.3及以上版本 git submodule update --recursive #或者 git pull --recurse-submodules git submodule
https://www.tsingfun.com/it/ai... 

App Inventor 2能编译出苹果iOS版App吗? - App Inventor 2 中文网 - 清泛...

...前并不支持,只支持iOS版AI伴侣进行测试,但是AI伴侣版本更新一直都是落后于安卓版,导致测试时会有一些不兼容或一些奇怪问题,体验不是很好,因此 如题,首先可以明确地说目前并不支持,只支持iOS版AI伴侣进行...
https://www.tsingfun.com/it/bigdata_ai/2293.html 

理解Python with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...据发生异常,没有进行任何处理。下面是处理异常加强版本: file = open("/tmp/foo.txt") try: data = file.read() finally: file.close() While this works well, it is unnecessarily verbose. This is where with is useful. The good thing about with apart from the be...
https://www.tsingfun.com/it/tech/1411.html 

新浪是如何分析处理32亿条实时日志? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...闭swap,调整max open files等;App Level优化如Java运行环境版本选择,ES_HEAP_SIZE设置,修改bulk indexqueue size等,另外还设置了默认index template,目是更改默认shard,replica数并将string改为not_analyzed,开启doc_values以应对elasti...
https://stackoverflow.com/ques... 

How do I add a linker or compile flag in a CMake file?

I am using the arm-linux-androideabi-g++ compiler. When I try to compile a simple "Hello, World!" program it compiles fine. When I test it by adding a simple exception handling in that code it works too (after adding -fexceptions .. I guess it is disabled by default). ...
https://stackoverflow.com/ques... 

how to install gcc on windows 7 machine?

...predicts, also provides a 64-bit variant, and in the future hopefully some ARM support. I use it and built toolchains with their CRT. Personal and auto builds are found under "Toolchains targetting Win32/64" here. They also provide Linux to Windows cross-compilers. I suggest you try a personal build...
https://www.tsingfun.com/it/tech/2266.html 

Genymotion安卓模拟器个人免费版下载 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...载个人版,如下: 3、下载:包括MacOS、Windows、Ubuntu版本 因为Genymotion运行需要VirtualBox,如果电脑中没安装过,选这个版本。 这个版本包含Oracle VirtualBox 4.2.12支持,因此您不用再手动下载安装VirtualBox。 Genymotion 安卓 模...
https://stackoverflow.com/ques... 

Why does volatile exist?

...SE2 is affected by this, and it wasn't "modern" even 10 years ago. MIPS / ARM / POWER all have 64-bit hardware registers, and so does x86 with SSE2. C++ implementations x86-64 always use SSE2, and compilers have options like g++ -mfpmath=sse to use it for 32-bit x86 as well. You can use gcc -fflo...
https://www.tsingfun.com/it/os_kernel/2494.html 

【解决】bufferevent_openssl.c:228:19: error: storage size of \'methods...

...target 'bufferevent_openssl.lo' failed 原因: 系统openssl安装版本是1.1.0+,而xunsearch安装包里libevent 2.0.x需要openssl < 1.1.0,导致不兼容报错。 常用几个Linux发行版已经把系统openssl升级到了1.1.0+,即对应需要libevent 2.1.x+,而lib...
https://bbs.tsingfun.com/thread-2202-1-1.html 

为啥“蓝牙客户端”组件在连接设备时就没反应了? - 创客硬件开发 - 清泛IT...

...n?” 这时可以考虑是否时硬件没有开机,或者硬件蓝牙版本是否是2.0经典蓝牙。最终用户使用ble拓展,成功连接及测试成功。 也就是硬件支持是ble低功耗蓝牙,这里也为我们提供了一个新排错思路,蓝牙协议版本不一...