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  1. What does 0.0.0.0/0 and ::/0 mean? - Stack Overflow

    May 29, 2017 · 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.

  2. 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, …

  3. What is the difference between NULL, '\0' and 0? - Stack Overflow

    This 0 is then referred to as a null pointer constant. The C standard defines that 0 cast to the type void * is both a null pointer and a null pointer constant. Additionally, to help readability, the macro NULL is …

  4. factorial - Why does 0! = 1? - Mathematics Stack Exchange

    The product of 0 and anything is $0$, and seems like it would be reasonable to assume that $0! = 0$. I'm perplexed as to why I have to account for this condition in my factorial function (Trying to learn …

  5. What is value of EOF and '\\0' in C - Stack Overflow

    NULL and '\0' are guaranteed to evaluate to 0, so (with appropriate casts) they can be considered identical in value; notice however that they represent two very different things: NULL is a null (always …

  6. What is %0|%0 and how does it work? - Stack Overflow

    Nov 18, 2012 · 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 …

  7. combinatorics - Why is 0 factorial equal to 1? Is there any pure basic ...

    Feb 6, 2021 · $$ 0! = \Gamma (1) = \int_0^ {\infty} e^ {-x} dx = 1 $$ If you are starting from the "usual" definition of the factorial, in my opinion it is best to take the statement $0! = 1$ as a part of the …

  8. Is 0.0.0.0 a valid IP address? - Stack Overflow

    Sep 7, 2010 · Is 0.0.0.0 a valid IP address? I want my program to be able to store it as an indication that no address is in use, but this won't work if it's actually valid.

  9. Is $0$ a natural number? - Mathematics Stack Exchange

    Inclusion of $0$ in the natural numbers is a definition for them that first occurred in the 19th century. The Peano Axioms for natural numbers take $0$ to be one though, so if you are working with these …

  10. binary - Backslash zero delimiter '\0' - Stack Overflow

    Jun 17, 2011 · The two-character \0 representation is used in C source code to represent the NUL character, which is the (single) character with ASCII value 0. The NUL character is used in C style …