Xavier Del Campo Romero
33a383b98e
libfixmath/fix16.h: replace static const with define
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This allows using them with compile-time expressions.
2022-02-24 21:45:25 +01:00
Xavier Del Campo Romero
151798a2b2
libfixmath/CMakeLists.txt: avoid glob matching
2022-02-24 21:45:25 +01:00
Xavier Del Campo Romero
84a5a3e9b3
libfixmath/CMakeLists.txt: use target_include_directories
2022-02-24 21:45:25 +01:00
Xavier Del Campo Romero
f0cb4e0f38
Rename library CMakeLists.txt
2022-02-24 21:45:25 +01:00
64d851a6f9
fix unsigned signed comparison in fix16_fft
2022-02-23 08:50:12 +02:00
09d10c16d3
fix warnings due to signed char on some platforms
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some context:
https://stackoverflow.com/a/10186479/1976323
2022-02-23 08:50:12 +02:00
29ddf649e1
fix unused variable warning with FIXMATH_FAST_SIN ( #35 )
2022-02-10 08:54:05 +02:00
0c88e55fa8
fixed division, undefined behaviors and some improvements ( #33 )
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* testing using ctest
* emove old testing script
* added github workflow CI
* updated CI
* added unit test for macros
* F16() and F16C() are both rounding allways, so fix16_from_dbl should as well
* added tests for strign operations, but these functions are in my opinion unreliable and tests are failing
* removed old unittests
* removed old unittests from cmake
* problem with division using gcc
* improved benchmark
* clarification of problem with division
* attempt to fix
* fixed some undefined behaviors, fixed division
2021-05-03 13:43:54 +03:00
c4a480774a
Fix compiler warning in fix16_abs()
2021-04-29 09:50:32 +03:00
35eb7753d2
New unittests ( #28 )
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Refactor unittests
2021-04-29 09:40:06 +03:00
ba0991de3e
fixed: signed integer overflow is undefined behavior
2021-04-27 11:08:33 +02:00
17a6197819
fix formatting
2021-04-22 09:10:50 +02:00
edcfdea949
fixed some warnings
2021-04-21 15:08:15 +02:00
18a9ad00de
Removed 64-bit restriction on linear interpolation functions. Added more test cases and fixed several bugs in the 64-bit arithmetic functions.
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Also added script to run all unit tests.
2020-10-29 13:20:27 -04:00
2859cbf31d
Added unit tests for "lerp" functions, and found several type conversion bugs
2020-10-22 16:24:49 -04:00
950d51759b
Fix `elif` without condition in `fix16_trig.c`
2020-03-15 02:22:25 +01:00
d09f7a4396
add #include <stdint.h> to int64.h
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When using the `gcc -M` option to determine header file dependencies, int64.h causes an error because the types from stdint.h are not defined.
2019-12-12 17:02:53 -06:00
6f6284807f
Fix missing function when building without overflow support
2019-09-08 15:28:05 +02:00
11855068c3
Fix conflict with __int64_t typedef
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On Linux, we get a compile error because __int64_t is defined and
included by stdint.h. Double underscores are reseved in C in general
and should not be used anyway. Replace with a single leading underscore.
2019-06-16 15:38:23 -05:00
ff0a5f69c2
add FIXMATH_NO_CTYPE option
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When compiling with -nostdlib, the functions in ctype may not be
available. Add FIXMATH_NO_CTYPE option to replace them with inline
functions.
Also add unit test to test str functions with this option enabled.
2019-06-16 15:38:19 -05:00
3b7f96f982
Add explicit cast in fix16_from_dbl()
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This fixes the error:
implicit conversion from 'float' to 'double' to match other operand
of binary expression
When the compiler options -fsingle-precision-constant -Wdouble-promotion
are set
2019-06-16 15:19:01 -05:00
f13c322287
Suppress `-Wconversion` warning
2019-04-15 02:29:08 +03:00
f8596fbada
Fix '-Werror=shift-negative-value' for gcc 6
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GCC 6 introduced warning for shift on negative value numbers.
When F16C is called with a negative number it evaluates FIXMATH_COMBINE_I_M
with both the positive and the negative value.
Fixes #3
2017-09-28 17:06:54 +02:00
a2784ee999
make some member functions const
2017-08-08 13:54:48 -07:00
cbbfe85a4a
Add F16C() macro for defining values without float support.
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Implementation by Jonas Zeiger.
2014-12-30 18:41:55 +00:00
bffee79f7f
Fix compile error on GCC
2014-01-16 19:15:34 +00:00
6758096516
Fix errors on Visual Studio (patch by sunside227)
2014-01-16 06:21:59 +00:00
6d59de5d60
Add #ifndefs around sdiv/smul/sadd/ssub in the C++ interface.
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Closes issue #19 .
2013-01-28 15:56:00 +00:00
bf4299bf58
Fix error in fix16_lerp16 on platforms with sizeof(int) == 2.
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Patch by georgjohann. Closes issue 20.
2013-01-28 15:52:08 +00:00
52214f192f
Use >= comparison in fix16_sadd, fix16_ssub.
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Patch submitted by georgjohann.
Closes issue #21 .
2013-01-28 15:49:07 +00:00
a3ad27ed10
Fix a division bug on 64-bit platforms.
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The GCC builtin clzl depends on the sizeof(long), which
caused an error if it was other than 32 bits.
Fixes issue #17 .
2012-08-31 10:16:09 +00:00
10af3a6c60
Add shorthand macro F16() for defining numeric constants
2012-08-30 16:52:52 +00:00
543e39f42d
Added to/from string conversion functions, and testcases for them.
2012-08-29 14:38:36 +00:00
4ffed9b5ff
Const allows more optimizations than pure
2012-08-05 16:16:12 +00:00
40ef134f4d
Add fix16_sq() inline function as a shorthand to square values
2012-08-05 16:11:40 +00:00
85204f4a28
Updated coding style document.
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Cleaned up some code.
2012-07-25 14:49:11 +00:00
bc77d6a360
Added basic code style document to project.
2012-07-25 11:18:25 +00:00
fb944f6adc
Added abs, floor, ceil, min, max, clamp.
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More code cleanup.
2012-07-25 10:38:03 +00:00
71eed13ecf
Added log base 2 functions kindly provided by Tev Olsen.
2012-07-25 10:24:47 +00:00
d9944df6d2
Added some deg/rad conversion functions.
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Fixed up some code style inconsistencies.
Added a modulo function to allow optimization on 8-bit machines.
2012-07-25 09:54:58 +00:00
c2a48b8910
Added a patch to make operator results constant in the C++ interface as suggested in Issue 15.
2012-07-02 16:07:50 +00:00
9169c3663c
Fix the check around 'leaf' attribute, which is supported only by GCC > 4.6.
2012-05-06 09:09:16 +00:00
91c5422472
Fix useless warning on AVR
2012-02-27 16:44:21 +00:00
e929442f71
Improved fix16_exp() (half runtime, more accuracy), added fix16_log(), made unittests for both.
2012-02-27 16:40:07 +00:00
eb1cb67561
Added some function attributes when using GCC; these may help the optimizer a bit.
2012-01-27 15:06:46 +00:00
1076285d26
Merging a bunch of separately developed functions:
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fix16_mul, fix16_div, fix16_sqrt.
They are faster & more accurate than the previous versions.
Closes issue #13 .
Includes unittests for the functions in question, runnable
by typing 'make' in the unittests folder.
2012-01-26 15:43:30 +00:00
681fd5aea1
Back to previous Makefile I unintentionally modified
2011-06-11 10:11:11 +00:00
495b0a23ad
Added a fix16_sqr32 function, which computes sqrt with reduced 64-bit operations (and without any 64-bit operations by setting FIXMATH_NO_64BIT)
2011-06-11 10:03:17 +00:00
c59675818b
Fixed issue 12 in fix16_div when FIXMATH_NO_64BIT defined
2011-06-10 13:49:11 +00:00
5248e45183
Faster atan2 algorithm (about twice faster), same precision
2011-06-09 12:32:50 +00:00
Xavier Del Campo Romero
Johannes Ringler