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61 lines
3.4 KiB
Plaintext
61 lines
3.4 KiB
Plaintext
{{QBDLDATE:07-31-2022}}
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{{QBDLTIME:23:54:03}}
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The [[&O]] prefix denotes that an integer value is expressed in a Octal base 8 format.
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{{PageSyntax}}
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: {{Parameter|a&}} = [[&O]]377
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{{PageDescription}}
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* The base 8 numbering system uses octal digit values of 0 to 7 only.
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* Leading zero values can be omitted just like in decimal values as they add nothing to the return value.
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* Decimal values returned can be any '''signed''' [[INTEGER]], [[LONG]] integer, or [[_INTEGER64]] value so use those type of variables when converting directly as shown above in the Syntax. The program [[ERROR Codes|"overflow"]] error limits are listed as:
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:* [[_BYTE]]: 3 octal digits or a decimal value range from -128 to 127. [[_UNSIGNED]]: 0 to 255.
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:* [[INTEGER]]: 6 octal digits or a decimal value range from -32,768 to 32,767. [[_UNSIGNED]]: 0 to 65535.
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:* [[LONG]]: 11 octal digits or a decimal value range from -2,147,483,648 to 2,147,483,647. [[_UNSIGNED]]: 0 to 4294967295.
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:* [[_INTEGER64]]: 22 octal digits or decimal values from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.
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:* [[_UNSIGNED]] [[_INTEGER64]]: 0 to 18446744073709551615.
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* The maximum octal value for each numerical type is the maximum number of digits listed above, each valued at '''7''' (except the first digit).
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** If the maximum number of digits is used, then the first digit (usually the highest significant position) may not be maxed out to '''7''', but only up to '''3''' ([[_BYTE]] and [[LONG]]) and up to '''1''' ([[INTEGER]] and [[_INTEGER64]]).
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* Convert octal to [[LONG]] values by appending the values with the suffix '''&'''. Example: [[&O]]100000 = -32768: [[&O]]100000'''&''' = 32768
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* To convert octal strings returned from [[OCT$]] with [[VAL]] you need to prefix the string with [[&O]] (for example, if the string is "377" you should do {{InlineCode}}{{Cl|VAL}}("&O377"){{InlineCodeEnd}} or {{InlineCode}}{{Cl|VAL}}("&O" + octvalue$){{InlineCodeEnd}}.
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{{PageExamples}}
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;Example 1:The maximum octal values of decimal value -1 in each numerical type are:
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{{CodeStart}}
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c&& = -1: d& = -1: e% = -1: f%% = -1
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oc$ = {{Cl|OCT$}}(f%%)
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{{Cl|PRINT}} "Max octal {{Cl|_BYTE}} = "; oc$; " with"; {{Cl|LEN}}(oc$); "digits ="; {{Cl|VAL}}("{{Cl|&O}}" + oc$)
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oc$ = {{Cl|OCT$}}(e%)
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{{Cl|PRINT}} "Max octal {{Cl|INTEGER}} = "; oc$; " with"; {{Cl|LEN}}(oc$); "digits ="; {{Cl|VAL}}("{{Cl|&O}}" + oc$)
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oc$ = {{Cl|OCT$}}(d&)
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{{Cl|PRINT}} "Max octal {{Cl|LONG}} = "; oc$; " with"; {{Cl|LEN}}(oc$); "digits ="; {{Cl|VAL}}("{{Cl|&O}}" + oc$)
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oc$ = {{Cl|OCT$}}(c&&)
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{{Cl|PRINT}} "Max octal {{Cl|_INTEGER64}} = "; oc$; " with"; {{Cl|LEN}}(oc$); "digits ="; {{Cl|VAL}}("{{Cl|&O}}" + oc$)
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oc$ = {{Cl|OCT$}}(9223372036854775807)
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{{Cl|PRINT}} "Max {{Cl|_INTEGER64}} value = "; oc$; " with"; {{Cl|LEN}}(oc$); "digits"
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oc$ = {{Cl|OCT$}}(-9223372036854775808)
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{{Cl|PRINT}} "Min {{Cl|_INTEGER64}} value = "; oc$; " with"; {{Cl|LEN}}(oc$); "digits"
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{{CodeEnd}}
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{{OutputStart}}
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Max octal _BYTE = 377 with 3 digits = 255
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Max octal INTEGER = 177777 with 6 digits = 65535
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Max octal LONG = 37777777777 with 11 digits = 4294967295
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Max octal _INTEGER64 = 1777777777777777777777 with 22 digits =-1
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Max _INTEGER64 value = 777777777777777777777 with 21 digits
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Min _INTEGER64 value = 1000000000000000000000 with 22 digits
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{{OutputEnd}}
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{{PageSeeAlso}}
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* [[_BIN$]], [[HEX$]], [[OCT$]], [[STR$]]
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* [[&B]] (binary), [[&H]] (hexadecimal), [[VAL]]
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* [[Base Comparisons]]
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{{PageNavigation}}
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[[Category:Final]]
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