Difference between revisions of "Bit.brshift"
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(Explain that this is an arithmetic, not logical, shift, and add a corresponding example) |
m (Changed nonexistent type int to type number.) |
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{{Function | {{Function | ||
|name=bit.brshift | |name=bit.brshift | ||
| − | |args= | + | |args={{Type|number}} n, {{Type|number}} bits |
|api=bit | |api=bit | ||
| − | |returns= | + | |returns={{Type|number}} the value of <var>n</var> shifted right by <var>bits</var> bits, with the shifted-in bits being equal to the original number’s 31st bit, which is equivalent to ⌊<var>n</var>÷2<sup><var>bits</var></sup>⌋ |
|addon=ComputerCraft | |addon=ComputerCraft | ||
|desc=Shifts a number right arithmetically by a specified number of bits | |desc=Shifts a number right arithmetically by a specified number of bits | ||
| Line 17: | Line 17: | ||
|code=print(bit.brshift(2147483648, 2)) | |code=print(bit.brshift(2147483648, 2)) | ||
|output=3758096384 | |output=3758096384 | ||
| + | }} | ||
}} | }} | ||
[[Category:API_Functions]] | [[Category:API_Functions]] | ||
Latest revision as of 01:08, 12 July 2013
 Function bit.brshift | |
| Shifts a number right arithmetically by a specified number of bits | |
| Syntax | bit.brshift(number n, number bits) |
| Returns | number the value of n shifted right by bits bits, with the shifted-in bits being equal to the original number’s 31st bit, which is equivalent to ⌊n÷2bits⌋ |
| Part of | ComputerCraft |
| API | bit |
Examples
 Example | |
| Shift the number 73 (1001001) right by 2 bits, yielding 18 (10010) | |
| Code |
print(bit.brshift(73, 2)) |
| Output | 18 |
| Example | |
| Shift the number 2,147,483,648 (10000000000000000000000000000000) right by 2 bits, yielding 3,758,096,384 (11100000000000000000000000000000) | |
| Code |
print(bit.brshift(2147483648, 2)) |
| Output | 3758096384 |
