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Operator overloading in Java

...but an example is worth a thousand arguments. Given m0 as a Matrix and v0, v1, v2, v3, and v4 as Vectors, simply compare how long it takes you to correctly interpret the following mathematical expression m0.transpose().mult(v0.add(v1.mult(v2)).cross(v3)).sub(v4);. Had support for operator overloadin...
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Does “git fetch --tags” include “git fetch”?

...eads/*:refs/remotes/origin/*') fatal: multiple updates for ref 'refs/tags/v1.0.0' not allowed Git 2.24 (Q4 2019) adds another optimization. See commit b7e2d8b (15 Sep 2019) by Masaya Suzuki (draftcode). (Merged by Junio C Hamano -- gitster -- in commit 1d8b0df, 07 Oct 2019) fetch: use oi...
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How to shrink the .git folder

...RELEASE-1.4.0 is tip) using git-remote-hg and this yielded a repo of about 100MB. Using git gc --aggressive --prune brought this down to 19MB. – Lekensteyn Apr 25 '13 at 14:42 16 ...
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Rename a dictionary key

... In case of renaming all dictionary keys: target_dict = {'k1':'v1', 'k2':'v2', 'k3':'v3'} new_keys = ['k4','k5','k6'] for key,n_key in zip(target_dict.keys(), new_keys): target_dict[n_key] = target_dict.pop(key) ...
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Linux Shell中 if else及大于、小于、等于逻辑表达式写法 - C/C++ - 清泛网...

...要有空格。这里的空格很重要,笔者就曾因为空格缺少或位置不对,而浪费好多宝贵的时间。 格式: if ....; then .... elif ....; then .... else .... fi [ -f "somefile" ] :判断是否是一个文件 [ -x "/bin/ls" ] :判断/bin/ls是否存在并有...
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SetRegistryKey 作用 - C/C++ - 清泛网 - 专注C/C++及内核技术

...再次启动的时候便可恢复上次的一些特性(如窗口大小、位置等等)。SetRegistryKey
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Win10提取锁屏壁纸的正确姿势 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...时候将会被替换。 Windows 10锁屏壁纸的默认存放位置和提取方法: Windows 10的锁屏壁纸都存放在C:\Users\MIS\AppData\Local\Packages\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\LocalState\Assets 其中,“MIS”是个人的用户名,而“Micros...
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错误解决:Xcode not set up properly. You may need to confirm the licens...

... Preferences -> Locations - > Command Line Tools #设置好xcode的安装位置 或 1 sudo -i xcode-select -switch /Applications/Xcode6-Beta6.app/Contents/Developer 根据具体路径: (sudo xcode-select -switch /Applica...
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Win7禁用休眠 减少C盘容量占用 - 脚本技术 - 清泛IT社区,为创新赋能!

...效。 另外,减少C盘容量占用常见的还有:将虚拟内存位置改到C盘以外。 设置完成后,需要重启计算机方可生效。 傻瓜式终极解决方案:使用CCleaner工具进行清理。http://www.tsingfun.com/html/201 ... 5343_pro_green.html
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SetRegistryKey 作用 - VC/MFC - 清泛IT论坛,有思想、有深度

...再次启动的时候便可恢复上次的一些特性(如窗口大小、位置等等)。