TAL Programmer's Guide

Declaring Arrays

Using Arrays

7–4 096254 Tandem Computers Incorporated

Global, Local, and Sublocal Initializations

You can initialize an array declared at any level except for extended indirect arrays

declared at the local level:

INT(32) .a[0:1] := [5D, 7D]; !Global array can be

! initialized

PROC my_procedure;

BEGIN

STRING .b[0:1] := ["A","B"]; !Local array can be

! initialized

FIXED .EXT c[0:3]; !Local extended indirect

! array cannot be initialized

SUBPROC my_subproc;

BEGIN

INT d[0:2] := ["Hello!"]; !Sublocal array can be

!Lots of code ! initialized

END;

Arrays by Data Type The following subsections give information about arrays by data type. For

information about the appropriate range and format of values for each data type, see

Section 6, “Using Simple Variables.”

STRING Arrays

For STRING arrays, the compiler allocates one byte for each element. The compiler

always starts the zeroth element of a STRING array on a word boundary. In the

diagram, question marks denote undefined values:

STRING a[0:2];

STRING b[3:4];

STRING c[-1:1];

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A[0] A[1]

A[2] ?

? B[3]

B[4] ?

? C[-1]

C[0] C[1]

B[0]