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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 a dereferencing! For example, int i, j=0; i=j
c++ - What does (~0L) mean? - Stack Overflow I'm doing some X11 ctypes coding, I don't know C but need some help understanding this In the C code below (might be C++ im not sure) we see (~0L) what does that mean? In Javascript and Python ~0
What does \x00 mean in binary file? - Stack Overflow The question should be: What is the difference between a text file and a binary file? An ASCII file is a file containing only bytes with a decimal value in range 0 to 127 That can be a text file or a binary file PHP is designed for processing text files which can be also files containing characters not present in the ASCII table being character encoded with Windows-1252 or UTF-8 or other