• Niovol (17/17) Apr 26 2007 How can I use references?
• Frits van Bommel (7/25) Apr 26 2007 What compiler version are you using?

Niovol <niovol gmail.com> writes:

How can I use references?
I found an example:
line 1|  //
line 2|  void def(ref int x)
line 3|  {
line 4|      x += 1;
line 5|  }

But this example doesn't work on my computer. The errors appear:
-----------------------
C:\Work\NeuroV.d\main.d(3): found 'int' when expecting ')'
C:\Work\NeuroV.d\main.d(3): semicolon expected following function
declaration
C:\Work\NeuroV.d\main.d(3): no identifier for declarator x
C:\Work\NeuroV.d\main.d(3): semicolon expected, not ')'
C:\Work\NeuroV.d\main.d(3): Declaration expected, not ')'
C:\Work\NeuroV.d\main.d(5): unrecognized declaration
--------

Frits van Bommel <fvbommel REMwOVExCAPSs.nl> writes:

Niovol wrote:
 How can I use references?
 I found an example:
 line 1|  //
 line 2|  void def(ref int x)
 line 3|  {
 line 4|      x += 1;
 line 5|  }
 
 But this example doesn't work on my computer. The errors appear:
 -----------------------
 C:\Work\NeuroV.d\main.d(3): found 'int' when expecting ')'
 C:\Work\NeuroV.d\main.d(3): semicolon expected following function
 declaration
 C:\Work\NeuroV.d\main.d(3): no identifier for declarator x
 C:\Work\NeuroV.d\main.d(3): semicolon expected, not ')'
 C:\Work\NeuroV.d\main.d(3): Declaration expected, not ')'
 C:\Work\NeuroV.d\main.d(5): unrecognized declaration
 --------

What compiler version are you using?
The "ref" keyword was introduced in DMD v1.011, so it won't work in any 
DMD version before that (nor any GDC version currently released).
So if you're using an older version (or GDC) either upgrade or use 
"inout" instead (that's what it was called before v1.011, and it still 
works).