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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. | * 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. | ||
* [[VAL]] can convert the returned bin string value back to a decimal value by prefixing the string with "[[&B]]". | * [[VAL]] can convert the returned bin string value back to a decimal value by prefixing the string with "[[&B]]". | ||
** Eg. {{InlineCode}}decimal = VAL("&B" + binvalue$){{InlineCodeEnd}}. | ** Eg. {{InlineCode}}decimal = {{Cl|VAL}}({{Text|<nowiki>"&B"</nowiki>|#FFB100}} + binvalue$){{InlineCodeEnd}}. | ||
{{PageAvailability}} | |||
* '''QB64 v2.1 and up''' | |||
* '''QB64-PE all versions''' | |||
{{PageExamples}} | {{PageExamples}} | ||
;Example 1: Comparing decimal, hexadecimal, octal and binary string values from 0 to 15. | ;Example 1:Comparing decimal, hexadecimal, octal and binary string values from 0 to 15. | ||
{{CodeStart}} | {{CodeStart}} | ||
tabletop$ = " Decimal | Hexadecimal | Octal | Binary " | tabletop$ = {{Text|<nowiki>" Decimal | Hexadecimal | Octal | Binary "</nowiki>|#FFB100}} | ||
tablesep$ = "---------+-------------+-------+--------" | tablesep$ = {{Text|<nowiki>"---------+-------------+-------+--------"</nowiki>|#FFB100}} | ||
tableout$ = " \ \ | \\ | \\ | \ \ " 'the PRINT USING template | tableout$ = {{Text|<nowiki>" \ \ | \\ | \\ | \ \ "</nowiki>|#FFB100}} {{Text|<nowiki>'the PRINT USING template</nowiki>|#919191}} | ||
{{Cl|LOCATE}} 2, 10: {{Cl|PRINT}} tabletop$ | {{Cl|LOCATE}} {{Text|2|#F580B1}}, {{Text|10|#F580B1}}: {{Cl|PRINT}} tabletop$ | ||
{{Cl|LOCATE}} 3, 10: {{Cl|PRINT}} tablesep$ | {{Cl|LOCATE}} {{Text|3|#F580B1}}, {{Text|10|#F580B1}}: {{Cl|PRINT}} tablesep$ | ||
{{Cl | {{Cl|FOR}} n% = {{Text|0|#F580B1}} {{Cl|TO}} {{Text|15|#F580B1}} | ||
{{Cl|LOCATE}} 4 + n%, 10: {{Cl|PRINT USING}} tableout$; {{Cl|STR$}}(n%); {{Cl|HEX$}}(n%); {{Cl|OCT$}}(n%); {{Cl|_BIN$}}(n%) | {{Cl|LOCATE}} {{Text|4|#F580B1}} + n%, {{Text|10|#F580B1}}: {{Cl|PRINT USING}} tableout$; {{Cl|STR$}}(n%); {{Cl|HEX$}}(n%); {{Cl|OCT$}}(n%); {{Cl|_BIN$}}(n%) | ||
{{Cl|NEXT}} n% | {{Cl|NEXT}} n% | ||
{{CodeEnd}} | {{CodeEnd}} | ||
| Line 57: | Line 62: | ||
;Example 2:Converting a binary value to decimal. | ;Example 2:Converting a binary value to decimal. | ||
{{CodeStart}} | {{CodeStart}} | ||
binvalue$ = {{Cl|_BIN$}}(255) | binvalue$ = {{Cl|_BIN$}}({{Text|255|#F580B1}}) | ||
{{Cl|PRINT}} "Bin: "; binvalue$ | {{Cl|PRINT}} {{Text|<nowiki>"Bin: "</nowiki>|#FFB100}}; binvalue$ | ||
{{Cl|PRINT}} "Converting Bin value to Decimal:"; {{Cl|VAL}}("&B" + binvalue$) | {{Cl|PRINT}} {{Text|<nowiki>"Converting Bin value to Decimal:"</nowiki>|#FFB100}}; {{Cl|VAL}}({{Text|<nowiki>"&B"</nowiki>|#FFB100}} + binvalue$) | ||
{{CodeEnd}} | {{CodeEnd}} | ||
{{OutputStart}} | {{OutputStart}} | ||
| Line 68: | Line 73: | ||
{{PageSeeAlso}} | {{PageSeeAlso}} | ||
* [[HEX$]], [[OCT$]], [[STR$ | * [[HEX$]], [[OCT$]], [[STR$]] | ||
* [[&B]] | * [[&B]] (binary), [[&H]] (hexadecimal), [[&O]] (octal), [[VAL]] | ||
* [[Base Comparisons]] | * [[Base Comparisons]] | ||
{{PageNavigation}} | {{PageNavigation}} | ||
Latest revision as of 16:52, 19 March 2023
This function returns the binary (base 2) representation of any numeric value.
Syntax
- binvalue$ = _BIN$(number)
Parameters
- number can be any INTEGER, LONG or _INTEGER64 value, positive or negative.
- number can also be any SINGLE, DOUBLE or _FLOAT value, but only the integer part of the value is converted in that case. That is, from the value -123.45 the function would convert the -123 only.
Description
- The function returns the base 2 (binary) representation of the given number as STRING.
- Different from STR$, this function does not return a leading sign placeholder space, so no LTRIM$ to strip that space from positive numbers is necessary.
- VAL can convert the returned bin string value back to a decimal value by prefixing the string with "&B".
- Eg. decimal = VAL("&B" + binvalue$).
Availability
- QB64 v2.1 and up
- QB64-PE all versions
Examples
- Example 1
- Comparing decimal, hexadecimal, octal and binary string values from 0 to 15.
tabletop$ = " Decimal | Hexadecimal | Octal | Binary " tablesep$ = "---------+-------------+-------+--------" tableout$ = " \ \ | \\ | \\ | \ \ " 'the PRINT USING template LOCATE 2, 10: PRINT tabletop$ LOCATE 3, 10: PRINT tablesep$ FOR n% = 0 TO 15 LOCATE 4 + n%, 10: PRINT USING tableout$; STR$(n%); HEX$(n%); OCT$(n%); _BIN$(n%) NEXT n% |
- Note
- Although the decimal numbers 0-15 have a maximum width of 2 digits only, an extra space in the tableout$ template is needed when using the (fixed width string) slash output format, as STR$ values contain a leading sign placeholder space.
Decimal | Hexadecimal | Octal | Binary
---------+-------------+-------+--------
0 | 0 | 0 | 0
1 | 1 | 1 | 1
2 | 2 | 2 | 10
3 | 3 | 3 | 11
4 | 4 | 4 | 100
5 | 5 | 5 | 101
6 | 6 | 6 | 110
7 | 7 | 7 | 111
8 | 8 | 10 | 1000
9 | 9 | 11 | 1001
10 | A | 12 | 1010
11 | B | 13 | 1011
12 | C | 14 | 1100
13 | D | 15 | 1101
14 | E | 16 | 1110
15 | F | 17 | 1111
|
- Example 2
- Converting a binary value to decimal.
binvalue$ = _BIN$(255) PRINT "Bin: "; binvalue$ PRINT "Converting Bin value to Decimal:"; VAL("&B" + binvalue$) |
Bin: 11111111 Converting Bin value to Decimal: 255 |
See also