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, …
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.
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 …
Is $0$ a natural number? - Mathematics Stack Exchange
Is there a consensus in the mathematical community, or some accepted authority, to determine whether zero should be classified as a natural number? It seems as though formerly $0$ was considered i...
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.
Why are strings in C++ usually terminated with '\0'?
Jun 8, 2012 · The title of your question references C strings. C++ std::string objects are handled differently than standard C strings. \0 is important when using C strings, and when I use the term …
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 …
algebra precalculus - Zero to the zero power – is $0^0=1 ...
The argument seems to hinge on whether one is to define 0^0=1 and economize several definitions and theorems from algebra, combinatorics, and analysis, at the expense of one caveat for a single …
Why is 0 factorial equal to 1? Is there any pure basic mathematical ...
Feb 6, 2021 · I just got a question while reading permutation. Why 0 is factorial equal to 1?
Check if bash variable equals 0 - Stack Overflow
Closed 7 years ago. I have a bash variable depth and I would like to test if it equals 0. In case yes, I want to stop executing of script. So far I have: