• Brad Anderson <brad sankaty.dot.com> Feb 15 2004
• Vathix <vathix dprogramming.com> Feb 15 2004
• John Reimer <jjreimer telus.net> Feb 15 2004
• "Ben Hinkle" <bhinkle4 juno.com> Feb 15 2004

Brad Anderson <brad sankaty.dot.com> writes:

Java:
-------------
System.arraycopy (logFonts, 0, newLogFonts, 0, nFonts);



D:
-------------
newLogFonts = logFonts.dup;  // do I need the .dup?

or

newLogFonts[] = logFonts[];


TIA,
BA

Vathix <vathix dprogramming.com> writes:

 newLogFonts = logFonts.dup;  // do I need the .dup?
 
 or
 
 newLogFonts[] = logFonts[];
 
 
 TIA,
 BA



I don't know Java but I can explain what the difference is. dup creates 
a new array. A slice (including []) on the left side of an assignment 
copies into the existing buffer.

John Reimer <jjreimer telus.net> writes:

Brad Anderson wrote:

 Java:
 -------------
 System.arraycopy (logFonts, 0, newLogFonts, 0, nFonts);
 
 
 
 D:
 -------------
 newLogFonts = logFonts.dup;  // do I need the .dup?


If these two arrays are dynamic (declared []), I think you need the 
"dup" or else newLogFonts will be a reference to the same array as logFonts.

 or
 
 newLogFonts[] = logFonts[];


This is the array copying form for static-sized arrays (declared fixed 
length - eg. int[4] a;)

"Ben Hinkle" <bhinkle4 juno.com> writes:

"Brad Anderson" <brad sankaty.dot.com> wrote in message
news:c0p5ee$31g2$1 digitaldaemon.com...
| Java:
| -------------
| System.arraycopy (logFonts, 0, newLogFonts, 0, nFonts);
|
|
|
| D:
| -------------
| newLogFonts = logFonts.dup;  // do I need the .dup?

Throws away any existing newLogFonts and replaces it with a newly allocated
copy of logFonts.

| or
|
| newLogFonts[] = logFonts[];

This would work only if newLogFonts had the same length as logFonts.
For the same semantics as the Java statement you want
 newLogFonts[0..nFonts] = logFonts[0..nFonts];
This will not allocate any memory. If the arrays don't have enough space the
array-bounds checker
will error.

|
|
| TIA,
| BA