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Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...进依赖项,否则会出错。最开始的时候,就是这么一点小问题,让我浪费了几天时间。   再点击添加必须的插件,自动添加其它的依赖项。   再下一步,设置项目的构建路径,如下图:   下一步,导出我们的...
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How are 3D games so efficient? [closed]

...dware. For instance, one easy optimization you can make involves not actually trying to draw things that can't be seen. Consider a complex scene like a cityscape from Grand Theft Auto IV. The renderer isn't actually rendering all of the buildings and structures. Instead, it's rendering only what t...
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APP被手机识别为疑似病毒 - App应用开发 - 清泛IT社区,为创新赋能!

...用,忽略警告,加入白名单,继续安装,使用上没有任何问题。有些手机有所谓的“纯净模式”阻止安装,可以考虑在设置中关闭它。 2、如果想要发布,可以先线上检测一下:https://m.qq.com/security_lab/scans_online.jsp 上传APK文件...
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Is inline assembly language slower than native C++ code?

... Yes, most times. First of all you start from wrong assumption that a low-level language (assembly in this case) will always produce faster code than high-level language (C++ and C in this case). It's not true. Is C code always faster than Java code? N...
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Purpose of memory alignment

... It's a limitation of many underlying processors. It can usually be worked around by doing 4 inefficient single byte fetches rather than one efficient word fetch, but many language specifiers decided it would be easier just to outlaw them and force everything to be aligned. There is ...
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Unable to create Android Virtual Device

... Simply because CPU/ABI says "No system images installed for this target". You need to install system images. In the Android SDK Manager check that you have installed "ARM EABI v7a System Image" (for each Android version from 4.0 and on you have to install a system image to ...
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When should one use a spinlock instead of mutex?

...eed, because the mutex is already locked, it will go to sleep, immediately allowing another thread to run. It will continue to sleep until being woken up, which will be the case once the mutex is being unlocked by whatever thread was holding the lock before. When a thread tries to lock a spinlock an...
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Fastest way to determine if an integer is between two integers (inclusive) with known sets of values

...s an old trick to do this with only one comparison/branch. Whether it'll really improve speed may be open to question, and even if it does, it's probably too little to notice or care about, but when you're only starting with two comparisons, the chances of a huge improvement are pretty remote. The c...
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jsoncpp 不能处理__int64(long long)类型数据 - C/C++ - 清泛网 - 专注C/C++及内核技术

...oncpp进行生成json的时候报了错误,很显然这不是我程序的问题。 Test.cpp: In function ‘std::string createJsonData()’: Test.cpp:41: error: conversion from ‘long long int’ to ‘const Json::Value’ is ambiguous include/json/value.h:205: note: ...
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硬盘最神秘的功能,万万想不到 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

... 这种办法可以很轻松的确定其重心~ 用圆规划一个圈,定位打孔~ 然后在盒盒侧边给它扎上几针。 居然把磁盘拆了下来!3.5寸的大家伙,看上去像电磨的磨片~ 还用上了电钻,要干什么呢? 看这个洞,剪得圆不~ ...