
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, …
factorial - Why does 0! = 1? - Mathematics Stack Exchange
Why does 0! = 1 0! = 1? All I know of factorial is that x! x! is equal to the product of all the numbers that come before it. The product of 0 and anything is 0 0, and seems like it would be reasonable to …
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 …
What is IPv6 for localhost and 0.0.0.0? - Stack Overflow
Oct 22, 2016 · As we all know the IPv4 address for localhost is 127.0.0.1 (loopback address). What is the IPv6 address for localhost and for 0.0.0.0 as I need to block some ad hosts.
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.
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 …
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 …
What does it mean when an HTTP request returns status code 0?
May 16, 2009 · An HTTP response code of 0 indicates that the AJAX request was cancelled. This can happen either from a timeout, XHR abortion or a firewall stomping on the request.
windows - Can't access 127.0.0.1 - Stack Overflow
Dec 31, 2015 · I mean that connection can't be established when using 127.0.0.1. For example, I run IIS and can access site using localhost, when I run azure emulator, I can access it using localhost too …
What does if [ $? -eq 0 ] mean for shell scripts? [duplicate]
What does if [ $? -eq 0 ] mean for shell scripts? [duplicate] Asked 14 years, 5 months ago Modified 7 years, 2 months ago Viewed 168k times