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Why do we need a pure virtual destructor in C++?
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Probably the real reason that pure virtual destructors are allowed is that to prohibit them would mean adding another rule to the language and there's no need for this rule since no ill-effects can come from allowing a pure virtual destructor.
Nope, plain old virtual is enough.
If...
In Java 8 how do I transform a Map to another Map using a lambda?
...rEach((s, integer) -> map2.put(s, integer));
And because we're just calling an existing method we can use a method reference, which gives us:
map.forEach(map2::put);
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马化腾给创业者的3点建议：行业跨界领域最有机会诞生创新 - 资讯 - 清泛网 ...
...行合伙人沈南鹏联合香港科技大学李泽湘等教授发起的“X科技创业平台”在香港成立。全国政协副主席董建华、香港特别行政区行政长官梁振英、香港创科局局长杨伟雄及中央政府驻港联络办主任张晓明均有出席。
作为“X科...
How to change the default GCC compiler in Ubuntu?
I have installed gcc-3.3/g++-3.3 on ubuntu 11.04 which already has gcc/g++-4.4. So in my system both gcc-3.3 and 4.4 are available. I am able to call both compilers as I want. If I just call the command gcc then gcc-4.4 will get called. To call gcc-3.3, I have to use the command gcc-3.3 .
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Issue with adding common code as git submodule: “already exists in the index”
...itory into place. If that's the case, you can do the following to unstage all of those files:
git rm -r --cached projectfolder
... and then add the submodule with:
git submodule add url_to_repo projectfolder
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线程访问窗口资源的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...并行运行的窗口）。在工作线程里调用AfxGetMainWnd（）->m_hWnd出错，也会发生发生内存访问冲突。（AfxGetMainWnd得到的是当前线程的主窗口）。
2.ASSERT((p = pMap->LookupPermanent(m_hWnd)) != NULL ||
(p = pMap->LookupTemporary(m_hWnd)) != NULL)失败;从...
Difference between Pig and Hive? Why have both? [closed]
... answered Jul 28 '10 at 19:08
G__G__
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How can I provide multiple conditions for data trigger in WPF?
...D are false, and set the default to true.
– WeSam Abdallah
Oct 28 '14 at 15:47
3
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How to run a command in the background and get no output?
...y print some output to the terminal. I want to write another script which calls both a.sh and b.sh but I want the user to regain control of the terminal immediately, instead of having the script run infinitely and I want to hide the output in terminal.
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Copying text outside of Vim with set mouse=a enabled
After enabling set mouse=a , text copied inside of Vim will not paste outside of Vim. Does anybody know of a way to fix this?
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