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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 - 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
xml - Regular expression \p {L} and \p {N} - Stack Overflow \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
How to connect to MySQL from the command line - Stack Overflow mysql -u root -p: This with connect to user called root, -p flag will prompt for a password Option 2: mysql -u root -p<PASSWORD>: Here you enter the password directly into the command and after execution the server connects quick without password prompt
c# - What does this regexp mean - \p {Lu}? - Stack Overflow The Unicode property \p{L} — shorthand for \p{Letter} will match any kind of letter from any language Therefore, \p{Lu} will match an uppercase letter that has a lowercase variant And, the opposite \p{Ll} will match a lowercase letter that has an uppercase variant
What is the difference between images in P and L mode in PIL? If you have a P mode image, that means it is palettised That means there is a palette with up to 256 different colours in it, and instead of storing 3 bytes for R, G and B for each pixel, you store 1 byte which is the index into the palette This confers both advantages and disadvantages