On Sunday, 30 April 2017 at 02:07:48 UTC, JV wrote:
Hello i'm kinda new to D language and i wanted to make a simple
program
but somehow my input does no go to my if statements and just
continues to ask for the user to input.Kindly help me
One way would be:
import std.stdio;
int x;
readf (" %s", &x);
The "%s" means "default format for the type", which is I believe
"%d" (decimal) for the int type. The space before "%s" is to
skip all whitespace before the actual input, it will matter when
you read your second integer:
readf ("%s%s", &x, &y); // error, got space for y instead of
a digit
readf ("%s %s", &x, &y); // ok
Another way is:
import std.conv, std.stdio, std.string;
int x = readln.strip.to!int;
Here, we read the line with readln, strip the trailing whitespace
with strip, and convert the resulting string to an int with
to!int.
Also, you might want to look at the corresponding chapter in Ali
Cehreli's book:
http://ddili.org/ders/d.en/input.html
Ivan Kazmenko.
