• Sarat Venugopal (13/13) Oct 07 2003 The docs say:
• davepermen (6/19) Oct 07 2003 as you say, suported with ~.. so use ~instead of +
• Charles Hixson (11/28) Oct 07 2003 Two comments:
• J C Calvarese (9/32) Oct 07 2003 Comparisons (<, >, and ==) work for me. Use the ~ for appending and
• Walter (5/16) Oct 08 2003 The documentation is wrong; '~' is the concatenate operator for strings,...

"Sarat Venugopal" <sarat_ng n0spam.huelix.com> writes:

The docs say:

Strings can be copied, compared, concatenated, and appended:
char[] str;

char[] str1 = "abc";

str1 = str2;

if (str1 < str3) ...

func(str3 + str4);

str4 += str1;

with the obvious semantics.

It errors out with "Array operations not implemented". I see that
concatenantion is supported by ~. Am I missing something here?

Cheers,

Sarat

davepermen <davepermen_member pathlink.com> writes:

as you say, suported with ~.. so use ~instead of +

func(string3 ~ string4);

string3 ~= string4;

and similar..

not sure about the <, i have to read that up again, haven't used it yet..
In article <blv327$15gn$1 digitaldaemon.com>, Sarat Venugopal says...
The docs say:

Strings can be copied, compared, concatenated, and appended:
char[] str;

char[] str1 = "abc";

str1 = str2;

if (str1 < str3) ...

func(str3 + str4);

str4 += str1;

with the obvious semantics.

It errors out with "Array operations not implemented". I see that
concatenantion is supported by ~. Am I missing something here?

Cheers,

Sarat

Charles Hixson <charleshixsn earthlink.net> writes:

Sarat Venugopal wrote:
 The docs say:
 
 Strings can be copied, compared, concatenated, and appended:
 char[] str;
 
 char[] str1 = "abc";
 
 str1 = str2;
 
 if (str1 < str3) ...
 
 func(str3 + str4);
 
 str4 += str1;
 
 with the obvious semantics.
 ...

Two comments:
1) do be aware that D is still a work in progress.  I'm never 
certain before I try just which language features have actually been 
implemented.
2) shouldn't that be str4 ~= str1 rather than str4 += str1 ?
2a) if you're missing a feature, you might be able to implement it 
yourself in a subclass via redefining the operation.  (I admit I 
haven't tried this with the "array of chars" type.  But for some 
other's it's worked well.... I say without having gotten the 
application to the point where I can do unit testing.)

J C Calvarese <jcc7 cox.net> writes:

Sarat Venugopal wrote:
 The docs say:
 
 Strings can be copied, compared, concatenated, and appended:
 char[] str;
 
 char[] str1 = "abc";
 
 str1 = str2;
 
 if (str1 < str3) ...
 
 func(str3 + str4);
 
 str4 += str1;
 
 with the obvious semantics.
 
 It errors out with "Array operations not implemented". I see that
 concatenantion is supported by ~. Am I missing something here?
 
 Cheers,
 
 Sarat

Comparisons (<, >, and ==) work for me.  Use the ~ for appending and 
concatenation.  I've attached an example that works on my system.  If my 
example doesn't help, it might be useful for you to post a complete 
example (whether it compiles or not).

I'm running WindowsXP.  I don't know if my example works on the Linux 
version (if it doesn't that would probably indicate a compiler bug).

Hope this helps.

Justin

"Walter" <walter digitalmars.com> writes:

"Sarat Venugopal" <sarat_ng n0spam.huelix.com> wrote in message
news:blv327$15gn$1 digitaldaemon.com...
 The docs say:

 Strings can be copied, compared, concatenated, and appended:
 char[] str;

 char[] str1 = "abc";

 str1 = str2;

 if (str1 < str3) ...

 func(str3 + str4);

 str4 += str1;

 with the obvious semantics.

 It errors out with "Array operations not implemented". I see that
 concatenantion is supported by ~. Am I missing something here?

The documentation is wrong; '~' is the concatenate operator for strings, not
'+'. Similarly, use  '~=' for append, not '+='. I've corrected the
documentation.