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c++ - What does \0 mean? - Stack Overflow 11 \0 is the NULL character, you can find it in your ASCII table, it has the value 0 It is used to determinate the end of C-style strings However, C++ class std::string stores its size as an integer, and thus does not rely on it
What does 0. 0. 0. 0 0 and :: 0 mean? - Stack Overflow 0 0 0 0 means that any IP either from a local system or from anywhere on the internet can access It is everything else other than what is already specified in routing table
What is the difference between 0. 0. 0. 0, 127. 0. 0. 1 and localhost? 127 0 0 1 is normally the IP address assigned to the "loopback" or local-only interface This is a "fake" network adapter that can only communicate within the same host It's often used when you want a network-capable application to only serve clients on the same host A process that is listening on 127 0 0 1 for connections will only receive local connections on that socket "localhost" is
What is %0|%0 and how does it work? - Stack Overflow 12 %0 will never end, but it never creates more than one process because it instantly transfers control to the 2nd batch script (which happens to be itself) But a Windows pipe creates a new process for each side of the pipe, in addition to the parent process The parent process can't finish until each side of the pipe terminates
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
c - why is *pp [0] equal to **pp - Stack Overflow That's why when you dereference pp[0] explicitly, with *pp[0], you are dereferencing it effectively twice: First you look at the contents of the address 0x2000, which is 0x1000, and then you dereference that in order to read the memory at 0x1000