HP 3000 Manuals HP 3000 Manuals
Arrays and Strings
The migration aid automatically makes the changes described below:
When entering DIM statements and array element accesses in BASIC/V,
square brackets and parentheses are interchangeable; both always list as
square brackets. In HP Business BASIC/XL, there is a definite syntactic
difference between the two: parentheses indicate array references and
square brackets indicate substring designators.
DIMension Statement
Table 13-7. DIM Statements
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| BASIC/V | HP Business BASIC/XL |
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| DIM A[5] | DIM A(5) |
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| DIM B[5,8] | DIM B(5,8) |
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| DIM S$[5] | DIM S$[5] |
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| DIM Z1$[5,10] | DIM Z1$(5)[10] |
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String and Array Boundary
The maximum string and array sizes are larger in HP Business BASIC/XL.
Use the following rule to calculate the maximum number of elements in an
array.
maximum elements = (8190000 DIV No_of_bytes1 )
Notes
1 No_of_bytes is the total number of bytes you need to store the data
type.
Table 13-8. Total Number of Bytes Needed to Store Data Types
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| Data Type | No_of_bytes |
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| STRING | 1 |
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| SHORT INTEGER | 2 |
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| INTEGER | 4 |
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| SHORT REAL | 4 |
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| REAL | 8 |
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| SHORT DECIMAL | 4 |
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| DECIMAL | 8 |
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The maximum string length in HP Business BASIC/XL is 32760.
Substrings
If A$ is a simple string with 12 characters, the DIM statement and the
access of substrings is the same in both languages:
Table 13-9. Simple Strings and the DIM Statement
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| BASIC/V | HP Business BASIC/XL |
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| DIM A$[12] | same |
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| C$ = A$[5] | same |
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| D$ = A$[2,6] | same |
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| E$ = A$[3;2] | same |
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If B$ is a string array of 5 elements, each having 12 characters, the
differences are as follows:
Table 13-10. String Arrays and DIM Statements
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| BASIC/V | HP Business BASIC/XL |
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| DIM B$[5,12] | DIM B$(5)[12] |
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| C$ = B$[2,6] | C$ = B$(2)[6] |
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| D$ = B$[2,6,12] | D$ = B$(2)[6,12] |
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| E$ = B$[2,5;2] | E$ = B$(2)[5;2] |
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