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Author SHA1 Message Date
nicoo
0518e06053 factor::rho: Minor refactor for readability 2020-06-20 10:39:56 +02:00
nicoo
dacee413db factor::rho: Refactor to avoid unnecessary allocations 2020-06-20 10:39:56 +02:00
nicoo
71e1c52920 factor::Factors: Rename new() to one() 2020-06-20 10:39:56 +02:00
Sylvestre Ledru
280fafed8a feature(cp) implement -P/--no-deference 2020-06-20 09:38:39 +02:00
Alex Lyon
f33ffc73eb
Merge pull request #1549 from nbraud/factor/strong-pseudoprime-bug 
factor: Fix very-rare bug in ρ
 2020-06-19 16:46:59 -07:00
nicoo
45a1408fb0 fixup! factor: Add test exhibiting a bug in ρ 2020-06-19 15:28:01 +02:00
nicoo
9fe3de72f2 factor::rho: Fix very-unlikely bug (resulting in assertion failure) 
This bug can only be triggered when:
- the Miller-Rabin test produces a divisor `d` (rare) ;
- n / d is prime.
 2020-06-19 13:51:29 +02:00
nicoo
9eb944b6b9 factor: Add test exhibiting a bug in ρ 
The test is repeated 20 times to make it overwhelmingly-likely to fail
(the bug itself is only triggered rarely)
 2020-06-19 13:48:00 +02:00
nicoo
3a90e31307 factor::numeric::inv_mod_u64: Provide a more-helpful error message 2020-06-19 13:39:42 +02:00
Alex Lyon
02b419db5f
Merge pull request #1545 from sylvestre/vscode 
vscode: install rust support & rla
 2020-06-18 23:50:41 -07:00
Alex Lyon
486022307c
Merge pull request #1547 from nbraud/factor/faster/display 
factors: Speed up displaying the results
 2020-06-18 23:36:04 -07:00
nicoo
ef12991ee7 factors: Avoid repeatedly locking and flushing stdout 
By default, stdout's LineWriter results one syscall per line, i.e. a billion
syscalls when factoring a billion numbers...

Buffering the output yields a ~28% speedup.
 2020-06-18 16:45:40 -07:00
nicoo
2869248318 factor::Factors: Use a tree-based map internally 
This eliminate the need for sorting the prime factors for display.
25% performance improvement after the changes from factor/montgomery.
 2020-06-18 16:44:08 -07:00
nicoo
4b4d11b61a
factor: Add/update copyright notices as necessary (#1546) 2020-06-18 21:38:28 +02:00
Alex Lyon
6105cce69a
Merge pull request #1529 from nbraud/factor/montgomery 
factor: Faster modular arithmetic with the Montgomery transform
 2020-06-18 09:19:12 -07:00
nicoo
fb08d9ff9e factor::numeric::Montgomery::add: Deal with rare overflow case 2020-06-18 14:32:58 +02:00
Sylvestre Ledru
f6e0e4ea35 vscode: install rust support & rla 2020-06-18 12:53:29 +02:00
Alex Lyon
e02b8a60f7
hashsum: switch from getopts to clap (#1542) 
* hashsum: switch from getopts to clap

Additionally, slightly refactor.  This commit will be the first of
a series of commits refactoring (at the very least) `hashsum`.
 2020-06-18 11:46:00 +02:00
Sylvestre Ledru
f17a112781
feature(ln): implement -r (#1540) 
* bump the minimal version of rustc to 1.32

* feature(ln): implement -r

* fix two issues

* Use cow

* rustfmt the change

* with cargo.lock 1.31

* try to unbreak windows
 2020-06-18 00:54:18 -07:00
nicoo
d1470dadf8 factor::numeric::gcd: Silence the (erroneous) dead code lint 2020-06-16 15:45:10 +02:00
nicoo
334e02786d factor: Run cargo fmt 2020-06-16 15:43:25 +02:00
Sylvestre Ledru
87af997c7a
Merge pull request #1541 from Arcterus/uumain-osstring 
Use an iterator over OsString for uumain()
 2020-06-16 15:02:31 +02:00
Alex Lyon
8377abadb6
Fix to build on Rust 1.32.0 and formatting 2020-06-16 04:08:17 -05:00
Alex Lyon
5cea5faee0
Update Cargo.lock 2020-06-16 03:59:45 -05:00
Alex Lyon
110d6844ad
Use an iterator over OsString for uumain() 
Additionally, restructure `uname` so that we don't need to find the
iterator's length.
 2020-06-16 03:28:02 -05:00
nicoo
f1788d9e70 fixup! factor::numeric::Montgomery: Fix overflow bug 2020-06-16 01:17:16 +02:00
nicoo
4851619d62 factor::miller_rabin: Avoid repeatedly transforming 1 and -1 
Approx. 25% speedup
 2020-06-15 23:05:31 +02:00
nicoo
cb6051c580 factor::numeric::Montgomery: Fix overflow bug 2020-06-15 22:40:57 +02:00
nicoo
2238065c9d factor::numeric: Simplify Montgomery (remove superfluous Wrapping) 2020-06-15 19:18:34 +02:00
nicoo
19a0645a0a factor::numeric: Simplify inv_mod_u64 
Just call `u64::wrapping_{mul,sub}` instead of (de)constructing Wrapping<u64>
values.
 2020-06-15 19:18:34 +02:00
nicoo
918035e01e factor: Fix for old Rust 2020-06-15 19:18:34 +02:00
nicoo
f84d0f9398 factor::Factors::add: Make the precondition check a debug_assert 2020-06-15 19:18:34 +02:00
nicoo
33e18b4cd3 factor::numeric::Montgomery: Add debug assertions 
In debug mode, checks that all arithmetic operations coincide with the
plain-u64 versions, as long as the latter does not overflow.
 2020-06-15 19:18:34 +02:00
nicoo
8a4d0d30ad factor::numeric: Implement Montgomery's transform 
This is a facter way to perform arithmetic mod n, when n is odd and a 64b
number.
 2020-06-15 19:18:29 +02:00
nicoo
e91155519a factor::factor: Add integration tests 2020-06-15 19:10:16 +02:00
nicoo
bada7530fb factor::miller_rabin: Add tests 2020-06-15 19:10:16 +02:00
Sylvestre Ledru
1309972149
Merge pull request #1539 from uutils/fix.disable-failing 
Fix ~ disable failing tests
 2020-06-15 09:30:37 +02:00
Roy Ivy III
813e57d225 fix cargo clippy complaint (redundant_clone) 2020-06-14 23:38:30 -05:00
Roy Ivy III
3a661e1f9e tests ~ suppress failing WSL logname test (add investigate ToDO) 2020-06-14 23:38:30 -05:00
Roy Ivy III
39e3c57198 fix cargo clippy complaint (clone_on_copy) 2020-06-14 23:38:30 -05:00
Roy Ivy III
6dfe2dd4a3 tests ~ disable failing 'test_hostname::test_hostname_ip' test on MacOS 
- also adds FixME to prompt future correction
 2020-06-14 23:38:30 -05:00
Roy Ivy III
2c5d154b67 fix ~ compiler warning (unused import) 2020-06-14 23:38:30 -05:00
Roy Ivy III
cbac6cc903 tests ~ increase test detail to diagnose MacOS hostname test failure 2020-06-14 23:38:30 -05:00
Roy Ivy III
5584194a13 docs ~ update cspell word exceptions 2020-06-14 23:38:30 -05:00
Roy Ivy III
b055ec34e7 tests ~ disable randomly failing test ('test_factor::test_random_big') under CI 
- avoid randomly failing builds; reactivate when fixed
- ref: #1531
 2020-06-14 23:38:30 -05:00
Roy Ivy III
d144182add tests/refactor ~ use is_ci() for CI host platform testing 2020-06-14 12:20:31 -05:00
Roy Ivy III
407d455b12 tests ~ add is_ci() test 2020-06-14 12:20:31 -05:00
Roy Ivy III
51cb023cd7 maint/CICD ~ pass CI from environment to cross containers 2020-06-13 21:54:21 -05:00
Roy Ivy III
6d15599c37 update deps ~ Cargo.lock 2020-06-13 13:55:55 -05:00
Roy Ivy III
2c4af65dc5 deps ~ update uucore dependency (use 'canary' everywhere for CI testing) 2020-06-13 13:40:19 -05:00