Hi,

I've been interested in conversion possibilities for a while. I tried to convert a string containing numbers but with no success in single digits. The only solution I found is to subtract 48 from the result:

import std;
void main()
{
    string str = "abc123";
    str[3..$].to!int.writeln; // 123
    auto bar = str[3].to!int;
    assert(bar == 49); // 49 is value for ASCII.
    writeln(bar - 48); // 1
}

On Wednesday, 15 June 2022 at 04:26:44 UTC, Salih Dincer wrote:

import std;
void main()
{
    string str = "abc123";
    str[3..$].to!int.writeln; // 123
    auto bar = str[3].to!int;
    assert(bar == 49); // 49 is value for ASCII.
    writeln(bar - 48); // 1
}

By indexing str, you're getting a char. So to is operating on that rather than on a string. Slicing will give you what you want, since then you'd have a "1" rather than a '1':

str[3..4].to!int;

On Wednesday, 15 June 2022 at 04:39:21 UTC, Mike Parker wrote:

str[3..4].to!int;

Thanks, I got the solution based on your answer. I also created different slicing functions. They work just fine without the need for conversion:

    T solKes(string str, size_t a, size_t l)
    {
      import std.conv;
      const b = a + l;
      return str[a + 1..b].to!T;
    }

    T kalKes(string str, size_t a, size_t l)
    {
      import std.conv;
      const b = a + l;
      return str[b - 1..b].to!T;
    }

    T sagKes(string str, size_t a, size_t l)
    {
      import std.conv;
      const b = a + l;
      return str[a..b - 1].to!T;
    }

    T tekKes(string str, size_t a, size_t l)
    {
      import std.conv;
      return str[a..a + l].to!T;
    }

Thanks again...

SDB@79