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78 lines
3.2 KiB
Plaintext
78 lines
3.2 KiB
Plaintext
{{QBDLDATE:05-20-2022}}
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{{QBDLTIME:23:14:56}}
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This function returns the octal (base 8) representation of any numeric value.
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{{PageSyntax}}
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: {{Parameter|octvalue$}} = [[OCT$]]({{Parameter|number}})
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{{PageParameters}}
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* {{Parameter|number}} can be any [[INTEGER]], [[LONG]] or [[_INTEGER64]] value, positive or negative.
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* {{Parameter|number}} can also be any [[SINGLE]], [[DOUBLE]] or [[_FLOAT]] value, but only the integer part of the value is converted in that case. That is, from the value ''-123.45'' the function would convert the ''-123'' only.
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{{PageDescription}}
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* The function returns the base 8 (octal) representation of the given {{Parameter|number}} as [[STRING]].
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* Different from [[STR$]], this function does not return a leading sign placeholder space, so no [[LTRIM$]] to strip that space from positive numbers is necessary.
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* [[VAL]] can convert the returned oct string value back to a decimal value by prefixing the string with "[[&O]]".
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** Eg. {{InlineCode}}decimal = VAL("&O" + octvalue$){{InlineCodeEnd}}.
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{{PageExamples}}
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;Example 1: Comparing decimal, hexadecimal, octal and binary string values from 0 to 15.
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{{CodeStart}}
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tabletop$ = " Decimal | Hexadecimal | Octal | Binary "
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tablesep$ = "---------+-------------+-------+--------"
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tableout$ = " \ \ | \\ | \\ | \ \ " 'the PRINT USING template
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{{Cl|LOCATE}} 2, 10: {{Cl|PRINT}} tabletop$
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{{Cl|LOCATE}} 3, 10: {{Cl|PRINT}} tablesep$
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{{Cl|FOR...NEXT|FOR}} n% = 0 {{Cl|TO}} 15
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{{Cl|LOCATE}} 4 + n%, 10: {{Cl|PRINT USING}} tableout$; {{Cl|STR$}}(n%); {{Cl|HEX$}}(n%); {{Cl|OCT$}}(n%); {{Cl|_BIN$}}(n%)
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{{Cl|NEXT}} n%
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{{CodeEnd}}
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;Note:Although the decimal numbers 0-15 have a maximum width of 2 digits only, an extra space in the ''tableout$'' template is needed when using the (fixed width string) slash output format, as [[STR$]] values contain a leading sign placeholder space.
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{{OutputStart}}
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Decimal | Hexadecimal | Octal | Binary
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---------+-------------+-------+--------
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0 | 0 | 0 | 0
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1 | 1 | 1 | 1
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2 | 2 | 2 | 10
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3 | 3 | 3 | 11
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4 | 4 | 4 | 100
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5 | 5 | 5 | 101
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6 | 6 | 6 | 110
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7 | 7 | 7 | 111
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8 | 8 | 10 | 1000
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9 | 9 | 11 | 1001
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10 | A | 12 | 1010
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11 | B | 13 | 1011
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12 | C | 14 | 1100
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13 | D | 15 | 1101
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14 | E | 16 | 1110
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15 | F | 17 | 1111
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{{OutputEnd}}
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;Example 2:Converting a octal value to decimal.
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{{CodeStart}}
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octvalue$ = {{Cl|OCT$}}(255)
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{{Cl|PRINT}} "Oct: "; octvalue$
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{{Cl|PRINT}} "Converting Oct value to Decimal:"; {{Cl|VAL}}("&O" + octvalue$)
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{{CodeEnd}}
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{{OutputStart}}
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Oct: 377
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Converting Oct value to Decimal: 255
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{{OutputEnd}}
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{{PageSeeAlso}}
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* [[_BIN$]], [[HEX$]], [[STR$]], [[VAL]]
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* [[&B]] {{text|(binary)}}, [[&H]] {{text|(hexadecimal)}}, [[&O]] {{text|(octal)}}
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* [[Base Comparisons]]
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{{PageNavigation}}
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