
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 …
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.
Why are strings in C++ usually terminated with '\0'?
Jun 8, 2012 · Note that \0 is needed because most of Standard C library functions operate on strings assuming they are \0 terminated. For example: While using printf() if you have an string …
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.
What does "javascript:void (0)" mean? - Stack Overflow
Aug 18, 2009 · 28 Web Developers use javascript:void(0) because it is the easiest way to prevent the default behavior of a tag. void(*anything*) returns undefined and it is a falsy value. and …
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 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 …
c - '\0' evaluates false, "\0" evaluates true - Stack Overflow
Apr 30, 2016 · First, looking at the two conditions, '\0' is a constant of type integer, which denotes the null character C, which is the same as 0. While "\0" is a string literal, which contains 2 …
最近换电脑,旧版微信3.9的聊天记录怎么迁移到新版微信4.0?
最近提高了生产力,换了电脑,新旧电脑的微信聊天记录遇到了很大问题,直接将WeChat Files幅值到新电脑的方法不再适用。 先说原因 旧电脑的微信版本为3.9版本的,聊天文件的默认路径 …
请问微信4.0版本xwechat_files与WeChat Files的重复文件有什么解 …
在4.0.5或之前的某个版本里,微信突然在存储空间处有了一个红点提醒,点进去出现了“历史版本冗余数据”的清理选项,大概在几百兆左右,清理后,可以看到原本的WeChat Files有了显著下降