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Turn a string into a valid filename?
..."._- "))
– hardmooth
May 9 '16 at 6:32
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Simple insecure two-way data “obfuscation”?
...ork with byte arrays.
NOTE: you should use different values in the Key (32 bytes) and Vector (16 bytes) arrays! You wouldn't want someone to figure out your keys by just assuming that you used this code as-is! All you have to do is change some of the numbers (must be <= 255) in the Key and V...
Types in MySQL: BigInt(20) vs Int(20)
...values than can be stored in their respective number of bytes. That means 232 values in an INT and 264 values in a BIGINT.
The 20 in INT(20) and BIGINT(20) means almost nothing. It's a hint for display width. It has nothing to do with storage, nor the range of values that column will accept.
Pr...
How to compare a local git branch with its remote branch?
...ool "vscode"] cmd = \"C:\\Program Files (x86)\\Microsoft VS Code\\Code.exe\" \"$LOCAL\" \"$REMOTE\" --diff --wait trustExitCode = false Make sure your path to code.exe file is correct.
– Aman
May 5 at 19:59
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How to stop app that node.js express 'npm start'
...d. To kill server process just run this command:
taskkill -F -IM node.exe
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程序员之网络安全系列（六）：动态密码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...题 我们使用了数字证书，确保了对方的公钥身份，也就是互联网中确定了要访问的网站就是你要访问的网站。
但是我们如何确定要访问这个网站的用户就是要访问的用户呢？ 对银行来说需要确保“敏捷的水”登录银行时，必...
How to measure time in milliseconds using ANSI C?
...time_high = (unit64_t) tcounter.ulHi;
timestamp = (time_high << 32) | time_low;
}
scale the ticks to elapsed time, i.e. to microseconds:
uint64_t usecs = (prev_timestamp - timestamp) / (freq / 1000000);
Example implementation
You can take a look at the plibsys library which implemen...
How do I restore a dump file from mysqldump?
...n up a command prompt (in Windows) and cd to the directory where the mysql.exe executable is (you may have to look around a bit for it, it'll depend on how you installed mysql, i.e. standalone or as part of a package like WAMP). Once you're in that directory, you should be able to just type the com...
C++中智能指针的设计和使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++中智能指针的设计和使用 智能指针(smart pointer)是存储指向动态分配（堆）对象指针的类，用于生存期控制，能够确保自动正确的销毁动态分配的对象，防止内存泄露。它的一种通用实现技术是使用引用计 智能指针(smart p...
Copying data from one SQLite database to another
...d .read.
Dump the table my_table from old_db.sqlite
c:\sqlite>sqlite3.exe old_db.sqlite
sqlite> .output mytable_dump.sql
sqlite> .dump my_table
sqlite> .quit
Read the dump into the new_db.sqlite assuming the table there does not exist
c:\sqlite>sqlite3.exe new_db.sqlite
sqlite>...