_BIN$
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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$).
Availability
- QB64 v2.1 and up
- QB64-PE all versions
Examples
- Example 1
- Comparing decimal, hexadecimal, octal and binary string values from 0 to 15.
SCREEN _NEWIMAGE(640, 480, 32) BG& = POINT(1, 1) PRINT "Alpha ="; _ALPHA(BG&); "Press a key to use CLS!" K$ = INPUT$(1) CLS BG& = POINT(1, 1) PRINT "CLS Alpha ="; _ALPHA(BG&) |
- Note
- Although the decimal numbers 0-15 have a maximum width of 2 digits only, an extra space in the tableout$ 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