Bug 15846 – Windows console cannot read properly UTF-8 lines

module runnable; import std.stdio; import std.string : chomp; import std.experimental.logger; void doSomethingElse(char[] data) { writeln("hello!"); } int main(string[] args) { /* Some fix I found in UTF-8 related problems, I'm using Windows 10 */ version(Windows) { import core.sys.windows.windows; if (SetConsoleCP(65001) == 0) throw new Exception("failure"); if (SetConsoleOutputCP(65001) == 0) throw new Exception("failure"); } FileLogger fl = new FileLogger("log.log"); char[] readerBuffer; readln(readerBuffer); readerBuffer = chomp(readerBuffer); fl.info(readerBuffer.length); /* <- if the readed string contains at least one UTF-8 char this gets 0, else it prints its length */ if (readerBuffer != "exit") doSomethingElse(readerBuffer); /* Also, all the following code doesn't run as expected, the program doesn't wait for you, it executes readln() even without pressing/sending a key */ readln(readerBuffer); fl.info(readerBuffer.length); readln(readerBuffer); fl.info(readerBuffer.length); readln(readerBuffer); fl.info(readerBuffer.length); readln(readerBuffer); fl.info(readerBuffer.length); readln(readerBuffer); fl.info(readerBuffer.length); return 0; } The code above doesn't work properly on windows if you input at least one of the following chars: á, é, í, ó, ú, ñ, à, è, ì, ò, ù (I haven't tried with others). This behaviour is reproducible ONLY using O.S. Windows. It has been tested in Debian and Mac OS X and it works correctly. Also is different for each mode: 32-bit (DMC stdlib) and 64-bit (MVSC stdlib).In both, the line is not read properly (I get a length of 0). On 32-bit, the program exits immediately, indicating it cannot read any more data. On 64-bit, the program continues to allow input.

*** This issue has been marked as a duplicate of issue 15845 ***