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Author SHA1 Message Date
Lukas Böger
f6e67edf01 export compilation database 2021-07-13 14:03:24 +01:00
Lukas Böger
4cc384ecac use VERSION file for project settings and lib output 2021-07-13 14:03:24 +01:00
Lukas Böger
b603e04d9e align library name with build artifact 2021-07-13 14:03:24 +01:00
Lukas Böger
76bce1ce1c prefer CMake's builtin BUILD_SHARED_LIBS option 2021-07-13 14:03:23 +01:00
Lukas Böger
eb6c9db857 use unversioned library basename 2021-07-13 14:03:23 +01:00
Lukas Böger
c79145b051 require CMake version >= 3.12 2021-07-13 14:03:23 +01:00
Lukas Böger
3c6ce4e23b don't ignore CMakeLists.txt 2021-07-13 14:03:23 +01:00
Alex Shinn
c05e820d71 adding contributing file 2021-06-30 18:35:24 +09:00
Alex Shinn
77365ccc6f
Merge pull request #752 from wrog/math_prime_fixes 
(chibi math prime) fix miller-rabin-composite?, factor, etc (issue #751), add factor-alist
 2021-06-30 18:25:30 +09:00
Roger Crew
3337049811 shorter factor (issue #751 cont.) 2021-06-30 00:29:54 -07:00
Roger Crew
2759aaa306 add factor-alist and export it (chibi math prime) 
a more useful version of factor
 2021-06-29 23:48:12 -07:00
Roger Crew
680aede9ae totient and aliquot rewrite + corrected tests for n=1 (issue #751 cont.) 2021-06-29 23:48:12 -07:00
Roger Crew
b89bd9f889 faster factor, (factor 1) = () (issue #751 cont.) 
no need to go up to sqrt(n), Instead track i^2 and quit when that gets
larger than the (remaining) n (i.e., not the original n)
 2021-06-29 23:48:12 -07:00
Roger Crew
41aa1a918e miller-rabin-composite? rewrite (issue #751) 
modular-root-of-one? is replaced with the correct witness tester
 2021-06-29 23:48:09 -07:00
Roger Crew
7d39108e72 factor-twos cps version using first-bit-set 
first-bit-set is way faster than looping
 2021-06-29 23:43:53 -07:00
Alex Shinn
73da0a88d4 scan for appropriate 2nd element to take the mean with when calling vector-find-median on an even length vector (issue #754) 2021-06-29 21:09:41 +09:00
Alex Shinn
f3bccf1f7b removing unintended export 2021-06-28 17:31:14 +09:00
Alex Shinn
378b56a0c3 adding opt-lambda* and define-opt* 2021-06-28 17:27:22 +09:00
Alex Shinn
0fbd89dd00 ignore keywords in non-keyword positions (issue #753) 2021-06-28 16:19:43 +09:00
Alex Shinn
05c546e38d match fix for (a ...) patterns where a was already bound - thanks to Andy Wingo 2021-06-21 16:44:02 +09:00
Alex Shinn
5207bdfde2 Defining list->u8vector (issue #749). 2021-06-18 13:04:20 +09:00
Alex Shinn
ead366870b
Merge pull request #747 from ilammy/sign-bit 
Fix usage of signbit() in SRFI 144
 2021-06-06 13:59:13 +09:00
Alexei Lozovsky
6f35aa75f4
Fix usage of signbit() in SRFI 144 
C standard defines signbit() as a macro returning "non-zero value" for
negative arguments (see 7.12.3.6 of C11 standard). SRFI 144's flsign-bit
is defined to return exactly 1.

Make sure to convert the result of signbit() call into "boolean int"
which is either 0 or 1.

This is not a theoretical issue. This causes SRFI 144 test suite to fail
on many architectures that are not x86_64.

GCC on x86_64 compiles signbit() as

        movmskpd %xmm0, %eax
        andl     $1, %eax

which indeed returns either 0 or 1. movmskpd extracts 2-bit sign mask
from the FP value in src register and stores that in low-order bits of
the dst register. Then the unneded extra bit is masked out, leaving only
the lowest bit set or unset.

However, other architectures don't have such conveniences and go with
more direct approach. For example, GCC on ARMv7 produces this:

        sub     sp, sp, #8
        vstr.64 d0, [sp]
        ldr     r0, [sp, #4]
        and     r0, r0, #0x80000000
        add     sp, sp, #8
        bx      lr

which effectively returns either 0 or -1. Generated code masks out
everything but the sign bit and returns the result as is. The value
0x80000000 is the representation of -1.

Even on i386 signbit() is compiled as

        fldl    4(%esp)
        fxam
        fnstsw  %ax
        fstp    %st(0)
        andl    $512, %eax
        ret

which effectively returns either 0 or 512: fxam sets C1 bit FPU status
word to the sign of FP value, then the status word is extracted, the
"sign bit" is masked out, and left as is.
 2021-06-06 13:49:44 +09:00
Alex Shinn
d9f5eaac61
Merge pull request #748 from ilammy/ffi-failures 
Initialize variables in FFI tests
 2021-06-06 13:43:09 +09:00
Alexei Lozovsky
cc23efac16
Initialize variables in FFI tests 
These ones are used to compute averages. If they are not initialized to
zero, they might contain some garbage. In fact, they almost always do
on platforms other that x86_64, failing the FFI tests. If optimizations
are enabled, these tests usually fail on x86_64 too. The reason this
went unnoticed is contrived set of coincidences.
 2021-06-06 11:19:52 +09:00
Alex Shinn
5610653c20 servlets should assume html if no Content-Type is specified 2021-05-28 12:07:23 +09:00
Alex Shinn
0388d9880c Merge branch 'master' of github.com:ashinn/chibi-scheme 2021-05-26 10:06:00 +09:00
Alex Shinn
8247e13baf remove superfluous + when printing complex numbers with negative ratio imaginary parts 2021-05-26 10:05:40 +09:00
Alex Shinn
fa59b289a6
Merge pull request #746 from lubgr/small-doc-fix-on-static-executable 
Fix documentation on building a standalone statically linked executable including compiled libs
 2021-05-25 11:37:28 +09:00
Lukas Böger
6ffba28b02 use SEXP_USE_STATIC_LIBS_NO_INCLUDE for static build 2021-05-24 22:42:21 +01:00
Alex Shinn
05ca40fa51 chibi doc fixes for irregex manual 2021-05-14 13:49:07 +09:00
Alex Shinn
4a06997978 guard against failed module-ref 2021-05-13 22:10:30 +09:00
Alex Shinn
f817dbaf96 emphasize not to use emmake directly 2021-05-12 08:28:55 +09:00
Alex Shinn
05eb4ebd35 installing SRFI 179 2021-05-11 00:06:24 +09:00
Alex Shinn
f84ddfc02e bumping version 2021-05-10 23:30:26 +09:00
Alex Shinn
89a77540b4 put system module path in front of user module path 2021-05-10 23:24:18 +09:00
Alex Shinn
6c522cc04b package srfis with tests 2021-05-10 23:14:43 +09:00
Alex Shinn
037a7b24fc exporting array-coeffs 2021-05-10 22:56:36 +09:00
Alex Shinn
7b2fbb0bf2 fixing ffi doc extraction for cond-expanded procedures 2021-05-10 18:40:33 +09:00
Alex Shinn
64633d577c adding assert docs 2021-05-10 17:57:06 +09:00
Alex Shinn
3eab7bf226 package SRFI 179 2021-05-10 17:49:02 +09:00
Alex Shinn
6e5278b7a1 separating out SRFI 179 base library 2021-05-07 22:39:53 +09:00
Alex Shinn
ca47a41ccf array simplification and performance tweaks 2021-05-07 16:15:48 +09:00
Alex Shinn
12ad1d37d8 add docs and tests for assert, unify with SRFI 145 2021-05-06 20:34:03 +09:00
Alex Shinn
e3782e35a5 add note about emscripten build 2021-05-06 20:31:29 +09:00
Alex Shinn
249f4f21ba allow tracing macros 2021-05-06 10:17:03 +09:00
Alex Shinn
68a81c8aff typo for non-threads build (issue #731) 2021-05-05 21:14:22 +09:00
Alex Shinn
1db8a573f1 more extensive list of constructs not to descend into 2021-05-05 08:08:12 +09:00
Alex Shinn
9a9f974d69 assert improvements: dedup vars, ignore lambdas, allow report: 2021-05-05 07:56:14 +09:00
Alex Shinn
d5a0f0ddfa
Merge pull request #744 from pclouds/emscripten-shared-flag 
Fix emscripten build
 2021-05-05 07:14:35 +09:00