Date:         Mon, 17 Oct 2011 20:19:32 +0000
Reply-To:     "Keintz, H. Mark" <mkeintz@WHARTON.UPENN.EDU>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Keintz, H. Mark" <mkeintz@WHARTON.UPENN.EDU>
Subject:      Re: _TEMPORARY_ array initialization.
Comments: To: "Data _null_;" <iebupdte@GMAIL.COM>
In-Reply-To:  <CAEZCysvYm1aifnJMOpwy2TmOfBGp40A26A22VZiyomM+FEv=_g@mail.gmail.com>
Content-Type: text/plain; charset="us-ascii"

DN:

The behavior is the same for non-temporary arrays (below), which leads me to think that initialization takes place after the array is constructed (below).

Also, since arrays (temporary or regular) can be multi-dimensional, a list of initial values would be insufficient to determine array shape.

Regards,
Mark

380  data _null_;
9381    array x {*} x1-x3 (10 20 30);
9382    do I=1 to 3; put x{i}= +2 @; end;
9383  run;

x1=10   x2=20   x3=30
NOTE: DATA statement used (Total process time):
      real time           0.02 seconds
      cpu time            0.01 seconds


9384
9385  data _null_;
9386    array x {*} x1-x3 (10 20 30 40);
WARNING: Too many values for initialization of the array x. Excess values are ignored.
9387    do I=1 to 3; put x{i}= +2 @; end;
9388  run;

x1=10   x2=20   x3=30
NOTE: DATA statement used (Total process time):
      real time           0.01 seconds
      cpu time            0.01 seconds


9389
9390  data _null_;
9391    array x {*} x1-x3 (10 20);
WARNING: Partial value initialization of the array x.
9392    do I=1 to 3; put x{i}= +2 @; end;
9393  run;

x1=10   x2=20   x3=.




-----Original Message-----
From: SAS(r) Discussion [mailto:SAS-L@LISTSERV.UGA.EDU] On Behalf Of Data _null_;
Sent: Monday, October 17, 2011 3:39 PM
To: SAS-L@LISTSERV.UGA.EDU
Subject: _TEMPORARY_ array initialization.

SAS complains if the dimension of my _TEMPORARY_ doesn't match the initial values list so why cant I just leave the dimension off and use [*] like a variable based array.  SAS is clearly counting the number of values in the initial values list so why can't that COUNT become the dimension.

125  data _null_;
126     array a[3] _temporary_ (10 20 30);
127     put a[1]= a[2]= a[3]=;
128     run;

a[1]=10 a[2]=20 a[3]=30
NOTE: DATA statement used (Total process time):
      real time           0.00 seconds
      cpu time            0.00 seconds


129
130  data _null_;
131     array a[3] _temporary_ (10 20 30 40);
WARNING: Too many values for initialization of the array a. Excess values are ignored.
132     put a[1]= a[2]= a[3]=;
133     run;

a[1]=10 a[2]=20 a[3]=30
NOTE: DATA statement used (Total process time):
      real time           0.01 seconds
      cpu time            0.01 seconds


134
135  data _null_;
136     array a[3] _temporary_ (10 20);
WARNING: Partial value initialization of the array a.
137     put a[1]= a[2]= a[3]=;
138     run;

a[1]=10 a[2]=20 a[3]=.
NOTE: DATA statement used (Total process time):
      real time           0.01 seconds
      cpu time            0.01 seconds


139
140  data _null_;
141     array a[*] _temporary_ (10 20 30);
ERROR: The non-variable based array a has been defined with zero elements.
142     put a[1]= a[2]= a[3]=;
ERROR: Too many array subscripts specified for array a.
ERROR: Too many array subscripts specified for array a.
ERROR: Too many array subscripts specified for array a.
143     run;

NOTE: The SAS System stopped processing this step because of errors.
NOTE: DATA statement used (Total process time):
      real time           0.01 seconds
      cpu time            0.01 seconds