I'm trying to read from stdin and then print an integer value. This is how my code looks like:

import std.stdio;
import std.conv;
import std.string;

void main()
{
    writeln("Input your variant (1 - 10):");
    int key;
    //readf(" %d", &key);
    //readf!" %d"(key);

    key = readln.strip.to!int;

    writefln("Your variant is: %d", key);
}

The problem is that the programme doesn't work if I try to use one of the commented readf functions. It doesn't print the last phrase. There is no error message. It just waits for nothing apparently. It works with the stip.to!int line, so the problem must be with readf.
I'm kind of new to this language and I don't have much experience with programming in general, so I have no way to know if it's just me being dumb or I've accidently found a bug.

I use DMD32 D Compiler v2.097.0-dirty

On Sunday, 27 June 2021 at 19:50:09 UTC, Matilda wrote:

import std.stdio;
import std.conv;
import std.string;

void main()
{
    writeln("Input your variant (1 - 10):");
    int key;
    //readf(" %d", &key);
    //readf!" %d"(key);

    key = readln.strip.to!int;

    writefln("Your variant is: %d", key);
}

This works with either readf line for me on v2.097.0.
Try stracing your program.

On Sunday, 27 June 2021 at 20:12:09 UTC, jfondren wrote:

Okay, thank you. I'll try it out.