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html - When to use lt;span gt; instead lt;p gt;? - Stack Overflow The <p> tag is a paragraph, and as such, it is a block element (as is, for instance, h1 and div), whereas span is an inline element (as, for instance, b and a) Block elements by default create some whitespace above and below themselves, and nothing can be aligned next to them, unless you set a float attribute to them
c - why is *pp [0] equal to **pp - Stack Overflow 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
c++ - What does (~0L) mean? - Stack Overflow 0L is a long integer value with all the bits set to zero - that's generally the definition of 0 The ~ means to invert all the bits, which leaves you with a long integer with all the bits set to one
html - How to use nbsp; in HTML5 - Stack Overflow for instance - <p>Text nbsp; nbsp; nbsp; nbsp; nbsp; nbsp;Text< p> But we have a tag provided in HTML itself named as <pre>< pre> Using this we could have as much required space as we want between the text For instance: <p>text nbsp; nbsp;text< p> gives out 2 spaces <pre>text text< pre> gives out the added spaces