Check this thing out : TCP Server But I would recommend you to start with gen_tcp and gen_udp modules first before getting started with OTP framework to design your server/Client. Happy Erlang Coding 🙂 solved How to build a TCP server with erlang?
feof is meant to signal that you’ve tried to read past the end of file – which means that you first have to reach it. So it will only work after you try to read and the system realizes you’re at the end. And what does fgetc return if you try to read past the … Read more
You can pass a relative or absolute path in any folder to and command, including touch (although the folder must exist): touch folder/sub.file.txt cd – switches to the folder you were last in (like a “Back” button) . means the current directory .. means the parent directory 2 solved About basic commands in bash (cp, … Read more
All of the possibilities are wrong to first order. This is a bad exam question and you may tell your instructor I said so. (a) is the least wrong answer. getservbyname could be used by a generic TCP client to determine what port of a server to connect to, given a textual service name. However, … Read more
Yes, for gcc5.x and later specifically, that specific expression is optimized very early to just p, even with optimization disabled, regardless of any possible runtime UB. This happens even with a static array and compile-time constant size. gcc -fsanitize=undefined doesn’t insert any instrumentation to look for it either. Also no warnings at -Wall -Wextra -Wpedantic … Read more
Programming I think that Linux is really great for programming. Installing other libraries is really a breeze. I would wholehardedly recommend Linux for Programming in: C C++ Python Java PHP JavaScript Haskell Lua Lisp You can also do C# with the Mono toolchain, but I am not sure how compatible that is with the C# … Read more
Looks like EEXIST pathname already exists and O_CREAT and O_EXCL were used. solved Error on file open: File exists
Stop using su and sudo to run virtualenv. You need to run virtualenv as your normal user. You have created the virtualenv with sudo which is why you are getting these errors. solved Is this a linux or a virtualenv error?
Data Storage: Specify the utf8mb4 character set on all tables and text columns in your database. This makes MySQL physically store and retrieve values encoded natively in UTF-8. Note that MySQL will implicitly use utf8mb4 encoding if a utf8mb4_* collation is specified (without any explicit character set). In older versions of MySQL (< 5.5.3), you’ll … Read more