unix - mkdir's "-p" option - Stack Overflow
Note that -p is an argument to the mkdir command specifically, not the whole of Unix. Every command can have whatever arguments it needs. Every command can have whatever arguments it needs. In this case it means "parents", meaning mkdir will create a directory and any parents that don't already exist.
%p Format specifier in c - Stack Overflow
2012年9月28日 · 1. So to get the address of variable i the correct format will be: int i=85; printf("%p %Fp", &i, &i); getch(); if you don't use & then u will just get the value contained in i which in this case is 85 or 55 in hex. %F expects a double, not a pointer, so your code is undefined behavior, as was the original code.
xml - Regular expression \p {L} and \p {N} - Stack Overflow
2013年2月15日 · \p{L} matches a single code point in the category "letter". \p{N} matches any kind of numeric character in any script. Source: regular-expressions.info. If you're going to work with regular expressions a lot, I'd suggest bookmarking that site, it's very useful.
html - Should ol/ul be inside <p> or outside? - Stack Overflow
The first part says that p elements can only contain phrasing content (which are “inline” elements like span and strong). The second part says ol s are flow content (“block” elements like p and div). So they can't be used inside a p. ol s and other flow content can be used in in some other elements like div: 4.5.13 The div element:
html - When to use <p> vs. <br> - Stack Overflow
You should use <p> when you want to separate two paragraphs. From Wikipedia: A paragraph (from the Greek paragraphos, "to write beside" or "written beside") is a self-contained unit of a discourse in writing dealing with a particular point or idea. Use the <br> tag when you want to force a new line inside your paragraphs.
c - why is *pp[0] equal to **pp - Stack Overflow
2016年1月27日 · So pp[0] points to the address of p, which is 0x2000, and by dereferencing I would expect to get the contents of address 0x2000 That's were your reasoning strays, but understandably so. In C, the right hand side of an assignment, or generally an evaluation of an lvalue (vulgo: variable), more precisely an lvalue-to-rvalue conversion, is already ...
What's "P=NP?", and why is it such a famous question?
P stands for polynomial time. NP stands for non-deterministic polynomial time. Definitions: Polynomial time means that the complexity of the algorithm is O (n^k), where n is the size of your data (e. g. number of elements in a list to be sorted), and k is a constant. Complexity is time measured in the number of operations it would take, as a ...
c++ - Where is `%p` useful with printf? - Stack Overflow
2010年3月3日 · Unfortunately it prepends '0X' not '0x', making the actual value hard to read. Presumably this is due to a missing '%P' variant. All told, this format specifier suffers from the problem of all 'platform dependent' implementations, that you can't really control what you're going to get. I use '0x%p' at the risk of getting a double 0x0X at the start.
windows - What does /p mean in set /p? - Stack Overflow
2015年1月5日 · What does /p stand for in set /p=? I know that / enables a switch, and I'm fairly sure that I know /a is for arithmetic. I've heard numerous rumours, some saying /p is for prompt, others stating it stands for print. The only reason I slightly doubt it is prompt is because in many cases it does not ask for a prompt, yet prints on the screen, such as
Handling of non breaking space: <p> </p> vs. <p> </p>
2012年9月5日 · A non-breaking space is a special kind of whitespace character that isn't considered to be insignificant, so it can be used as content for a non-empty paragraph. Even if you consider CSS margins on paragraphs, since an "empty" paragraph has zero height, its vertical margins will collapse. This causes it to have no height and no margins, making ...