• Nrgyzer (22/22) Mar 21 2010 Hello everyone,
• Bane (10/43) Mar 21 2010 No, it shouldn't. What goes in B, stays in B. But if you add magic 'ref'...
• bearophile (4/5) Mar 21 2010 Use 'ref' only. If the OP also wants to know why that's the solution, th...
• Bane (2/9) Mar 21 2010 Darn. I like inout more. Why do good keywords die first?
• Robert Clipsham (4/13) Mar 21 2010 inout still works in D1, in D2 it has a new meaning though to save
• Nrgyzer (2/51) Mar 21 2010 Thanks, that's exactly what I needed :)

Nrgyzer <nrgyzer gmail.com> writes:

Hello everyone,

how can I add a char to a char-array by using a other class?

For example:

class A {

   private char[] text;

   this() {
   ...
      text ~= "a";
      new B(text);
      writefln(text);
   ...
   }

}

class B {

   this(char[] text) {
   ...
      text ~= "b";
   ...
   }

}

This should write "ab" in the command line, but only "a" is shown.

... Thanks for help :).

Bane <branimir.milosavljevic gmail.com> writes:

Nrgyzer Wrote:

 Hello everyone,
 
 how can I add a char to a char-array by using a other class?
 
 For example:
 
 class A {
 
    private char[] text;
 
    this() {
    ...
       text ~= "a";
       new B(text);
       writefln(text);
    ...
    }
 
 }
 
 class B {
 
    this(char[] text) {
    ...
       text ~= "b";
    ...
    }
 
 }
 
 This should write "ab" in the command line, but only "a" is shown.
 
 ... Thanks for help :).


No, it shouldn't. What goes in B, stays in B. But if you add magic 'ref' or
'inout' keyword it might work:

 class B {

    this(inout char[] text) {
    ...
       text ~= "b";
    ...
    }
 
 }

bearophile <bearophileHUGS lycos.com> writes:

Bane:
 No, it shouldn't. What goes in B, stays in B. But if you add magic 'ref' or
'inout' keyword it might work:

Use 'ref' only. If the OP also wants to know why that's the solution, the
d.learn newsgroup is the right place to ask.

Bye,
bearophile

Bane <branimir.milosavljevic gmail.com> writes:

bearophile Wrote:

 Bane:
 No, it shouldn't. What goes in B, stays in B. But if you add magic 'ref' or
'inout' keyword it might work:

 
 Use 'ref' only. If the OP also wants to know why that's the solution, the
d.learn newsgroup is the right place to ask.
 
 Bye,
 bearophile

Darn. I like inout more. Why do good keywords die first?

Robert Clipsham <robert octarineparrot.com> writes:

On 21/03/10 11:40, Bane wrote:
 bearophile Wrote:

 Bane:
 No, it shouldn't. What goes in B, stays in B. But if you add magic 'ref' or
'inout' keyword it might work:

 Use 'ref' only. If the OP also wants to know why that's the solution, the
d.learn newsgroup is the right place to ask.

 Bye,
 bearophile

 Darn. I like inout more. Why do good keywords die first?

inout still works in D1, in D2 it has a new meaning though to save 
writing out a function 3 times for const/immutable/mutable 
(http://www.digitalmars.com/d/2.0/function.html#inout-functions).

Nrgyzer <nrgyzer gmail.com> writes:

Bane Wrote:

 Nrgyzer Wrote:
 
 Hello everyone,
 
 how can I add a char to a char-array by using a other class?
 
 For example:
 
 class A {
 
    private char[] text;
 
    this() {
    ...
       text ~= "a";
       new B(text);
       writefln(text);
    ...
    }
 
 }
 
 class B {
 
    this(char[] text) {
    ...
       text ~= "b";
    ...
    }
 
 }
 
 This should write "ab" in the command line, but only "a" is shown.
 
 ... Thanks for help :).

 
 
 No, it shouldn't. What goes in B, stays in B. But if you add magic 'ref' or
'inout' keyword it might work:
 
  class B {
 
     this(inout char[] text) {
     ...
        text ~= "b";
     ...
     }
  
  }
 

Thanks, that's exactly what I needed :)