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What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...it in a specific place on the system, as those paths may be in different lom>ca m>tions on different systems. As long as it's in your path, it will find it.
One downside is that you will be unable to pass more than one argument (e.g. you will be unable to write /usr/bin/env awk -f) if you wish to suppo...
Difference between Big-O and Little-O Notation
... says, essentially
For at least one choice of a constant k > 0, you m>ca m>n find a constant a such that the inequality 0 <= f(x) <= k g(x) holds for all x > a.
Note that O(g) is the set of all functions for which this condition holds.
f ∈ o(g) says, essentially
For every choice...
MongoDB Many-to-Many Association
...
Depending on your query needs you m>ca m>n put everything in the user document:
{name:"Joe"
,roles:["Admin","User","Engineer"]
}
To get all the Engineers, use:
db.things.find( { roles : "Engineer" } );
If you want to maintain the roles in separate documents ...
Understanding NSRunLoop
public friend swap member function
... is one of them. Why? Let's go on.
What we should do is identify what's m>ca m>nonim>ca m>l, and what our class needs to do to work with it. And the m>ca m>nonim>ca m>l method of swapping is with std::swap. This is why member functions aren't useful: they aren't how we should swap things, in general, and have no bea...
How do I clone a subdirectory only of a Git repository?
...
EDIT: As of Git 2.19, this is finally possible, as m>ca m>n be seen in this answer.
Consider upvoting that answer.
Note: in Git 2.19, only client-side support is implemented, server-side support is still missing, so it only works when cloning lom>ca m>l repositories. Also note that l...
选中CListCtrl指定行并发送LVN_ITEMCHANGED消息 - C/C++ - 清泛网 - 专注C/C++及内核技术
...d;
nmlv.hdr.idFrom = m_listReport.GetDlgCtrlID();//GetDlgCtrlId() ;0x00190m>ca m>4
nmlv.hdr.code = LVN_ITEMCHANGED;
nmlv.iItem = nIndex ;
nmlv.iSubItem = 0;
nmlv.uNewState = 3 ;
nmlv.uOldState = 0;
nmlv.uChanged = LVIF_STATE;
nmlv.lParam = 0;
m_listReport.GetParent()->SendMessageA(WM_NOTIFY,nmlv...
What do
I m>ca m>n see in the API docs for Predef that they're subclasses of a generic function type (From) => To, but that's all it says. Um, what? Maybe there's documentation somewhere, but search engines don't handle "names" like "
...
GridLayout and Row/Column Span Woe
...ing GridLayout shows this diagram of how spans impact automatic index allom>ca m>tion:
5 Answers
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Why are margin/padding percentages in CSS always m>ca m>lculated against width?
...
Transferring my comment to an answer, bem>ca m>use it makes logim>ca m>l sense. However, please note that this is unfounded conjecture. The actual reasoning of why the spec is written this way is still, technim>ca m>lly, unknown.
Element height is defined by the height of the...