HP 3000 Manuals HP 3000 Manuals
BUFTYP Function
The BUFTYP function returns the number that represents the type of the
next item in the input buffer. See the INPUT statement in chapter 4 for
an explanation of the input buffer. The BUFTYP function returns the same
numeric values representing HP Business BASIC/XL data types returned by
the DATATYP and TYP functions (see Table 5-1).
Table 5-1. Numbers Representing Input Data Types
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| | |
| BUFTYPE | Type of Next Item in |
| Result | DATA Statement or Input |
| | Buffer |
| | |
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| | |
| 1 | DECIMAL |
| | |
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| | |
| 2 | Entire string |
| | |
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| | |
| 4 | End-of-record (EOR) mark |
| | |
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| | |
| 5 | SHORT INTEGER |
| | |
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| | |
| 11 | INTEGER |
| | |
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| | |
| 13 | REAL |
| | |
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Syntax
BUFTYP
The BUFTYP function determines the type of a numeric datum by its format,
whether it contains a decimal point or is expressed in scientific
notation, its value, and the default numeric type.
Table 5-2 explains how BUFTYP determines the type of a numeric datum.
Table 5-2. Type Assignment by BUFTYP Function
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| | | |
| Range | Without Decimal Point and | With Decimal Point or |
| | Not Expressed in | Expressed in |
| | Scientific Notation | Scientific Notation |
| | | |
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| | | |
| [-32768, 32767] | SHORT INTEGER | REAL |
| | | |
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| | | |
| [-2147483648, 2147483647] | INTEGER | REAL |
| | | |
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| | | |
| Outside integer ranges but inside | REAL | REAL |
| real range | | |
| | | |
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| | | |
| Outside real ranges | DECIMAL | DECIMAL |
| | | |
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Examples
10 A=BUFTYP !After this call, A will contain the data type of the
20 !next item in the input buffer.