LlModPow: Difference between revisions
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Frionil Fang (talk | contribs) has poor internal precision, as per feedback.secondlife bug report; leaving a caveat for now, can be removed if/when it gets fixed |
Frionil Fang (talk | contribs) has been fixed, and forced delay removed |
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{{LSL_Function | {{LSL_Function | ||
|func_id=300|func_sleep= | |func_id=300|func_sleep=0.0|func_energy=10.0 | ||
|func=llModPow|sort=ModPow | |func=llModPow|sort=ModPow | ||
|return_type=integer | |return_type=integer | ||
| Line 10: | Line 10: | ||
|return_text=that is '''a''' raised to the '''b''' power, mod '''c'''. ( ('''a'''**'''b''')%'''c''' ) | |return_text=that is '''a''' raised to the '''b''' power, mod '''c'''. ( ('''a'''**'''b''')%'''c''' ) | ||
|spec | |spec | ||
|caveats | |caveats | ||
|constants | |constants | ||
|examples | |examples=<syntaxhighlight lang="lsl2"> | ||
integer x = llModPow(13743, 14200, 10000); // = 1 | |||
integer y = llModPow(0xc734abfa, 0x8371b314, 0xffffffff); // = -1481328730, corresponding to unsigned value of 2813638566 | |||
</syntaxhighlight> | |||
|helpers | |helpers | ||
|also_functions | |also_functions | ||
| Line 18: | Line 21: | ||
|also_tests | |also_tests | ||
|also_articles | |also_articles | ||
|notes | |notes=*Internally, the parameters are considered unsigned integers. This means it's possible to get extra range by using negative values or hexadecimal, and interpreting the result as such as well. | ||
*This function used to have a forced delay of 1.0 and precision issues before an update in January 2025.{{footnote|Reported {{date|2024-11-03}}, fixed in January 2025: https://feedback.secondlife.com/scripting-bugs/p/getting-wrong-results-from-llmodpow}} | |||
|cat1=Math | |cat1=Math | ||
|cat2 | |cat2 | ||
Latest revision as of 03:56, 30 January 2025
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Summary
Function: integer llModPow( integer a, integer b, integer c );| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns an integer that is a raised to the b power, mod c. ( (a**b)%c )
| • integer | a | |||
| • integer | b | |||
| • integer | c |
Examples
integer x = llModPow(13743, 14200, 10000); // = 1
integer y = llModPow(0xc734abfa, 0x8371b314, 0xffffffff); // = -1481328730, corresponding to unsigned value of 2813638566
Notes
- Internally, the parameters are considered unsigned integers. This means it's possible to get extra range by using negative values or hexadecimal, and interpreting the result as such as well.
- This function used to have a forced delay of 1.0 and precision issues before an update in January 2025.[1]
Deep Notes
Footnotes
- ^ Reported 3 November 2024, fixed in January 2025: https://feedback.secondlife.com/scripting-bugs/p/getting-wrong-results-from-llmodpow
Signature |
|---|
function integer llModPow( integer a, integer b, integer c ); |