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20 Commits

Author SHA1 Message Date
Thomas Watson 1249388f23 AP_Common: use template parameter in bitmask functions 
Substantially improves code optimization and reduces memory usage.
 2024-07-09 11:51:41 +10:00
Thomas Watson 6a4520e8fd AP_Common: clean up bitmask operators 
Code already won't compile if there are different numbers of bits as the
template parameter will be different.
 2024-07-09 11:51:41 +10:00
Thomas Watson b030b8e789 AP_Common: correctly bound bitmask datatypes 
Probably won't work correctly (and of questionable use) if less than 1.
The `first_set()` function might not be able to return a valid value if
greater than INT16_MAX.

unsigned int needs to be >= uint32_t so that the shift ops are in range.
 2024-07-09 11:51:41 +10:00
Thomas Watson 0b320fe303 AP_Common: unify bitmask out of bounds checking 
Ensures out-of-bounds reads and writes are never performed for setting,
clearing, and checking. Fixes test failure when the number of bits
evenly divides the word size.
 2024-07-09 11:51:41 +10:00
Thomas Watson 9a89223531 AP_Common: fix bitmask setall() 
Fixes an issue where the last word was not set to all 1s if the number
of bits evenly divided the word size.

Also fixes UB if there were 31 valid bits.
 2024-07-09 11:51:41 +10:00
Andrew Tridgell 9d42f49ac8 AP_Common: added setonoff() method for bitmask 2022-10-11 11:47:04 +11:00
bugobliterator 3c87062f27 AP_Common: add support for comparing BitMasks 2022-07-27 18:18:03 +10:00
Peter Barker 8e82ea2540 AP_Common: create and use INTERNAL_ERROR macro so we get line numbers 2020-04-30 13:21:36 +10:00
Peter Barker 9d4bdbf3d5 AP_Common: add sanity check into bitmask get/set 
Also return false if we are asked about an out-of-bounds bit
 2019-05-28 09:43:17 +10:00
Peter Barker e51a0a7a52 AP_Common: make Bitmask a template on number of bits 2019-04-16 15:12:07 +10:00
Peter Barker e198b0c7e6 AP_Common: Bitmask: choose builtin based on type for find_first_set 2018-12-10 12:52:41 +09:00
Peter Barker db5f933e7a AP_Common: Bitmask: add assignment operator 2018-12-10 12:52:41 +09:00
Andrew Tridgell 0fcb22afde AP_Common: added first_set() method to Bitmask 2018-12-10 12:52:41 +09:00
Peter Barker 6b7e04da06 AP_Common: Bitmask: remove copy operator and constructor 2018-11-05 12:17:55 +09:00
squilter 1a9bccaaa7 AP_Common: fix Bitmask out-of-range values 2017-09-09 14:05:41 +09:00
Randy Mackay 963c9c93fe AP_Common: constify bitmask 2017-09-09 14:05:41 +09:00
Randy Mackay f187df225a AP_Common: add setall, count and size methods to Bitmask 2017-09-09 14:05:41 +09:00
Randy Mackay aaac6b3692 AP_Common: Bitmask formatting fix 2017-08-30 20:07:04 +09:00
Andrew Tridgell 71158e3e74 AP_Common: added #pragma once 2017-05-06 15:21:14 +10:00
Andrew Tridgell 6adad11e2f AP_Common: added simple bitmask class 2016-12-02 09:49:39 +11:00