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98 Commits

Author SHA1 Message Date
zeichensystem
1c7a620ae9 Add README and LICENSE 2025-12-23 14:22:50 +01:00
zeichensystem
2f50db1858 Fix more GCC warnings 2025-12-21 19:51:42 +01:00
zeichensystem
a964466c8b Fix GCC errors 2025-12-21 18:17:22 +01:00
zeichensystem
45f07986c3 Add string functions 2025-12-21 17:30:13 +01:00
jun
ae83ee66e1 Make guf_utf8_char 4 bytes instead of 5
(Null-termination was superfluous here.)
2025-05-25 16:04:26 +02:00
jun
c54fc75221 Use least vs fast int types 2025-05-19 09:50:05 +02:00
jun
2355feaa70 Use portable guf_math_ckdint functions in guf_rand 2025-05-19 00:48:38 +02:00
jun
096b83638b Fix guf_id_pool integer portability 2025-05-19 00:42:27 +02:00
jun
4217ef6e0b Fix guf_str uninit 2025-05-19 00:12:27 +02:00
jun
57f0e47efc Refactor to use portable minimum-width integers.
The signed and unsigned fixed-width integers (int32_t, uint32_t etc.) are optional
in C99 (and above). Use the non-optional minimum-width integers (int_fast32_t, uint_fast32_t and int_least32_t, uint_least32_t etc.) instead.

To simulate unsigned wrap-around, use the GUF_UWRAP macros in guf_common.h

cf. https://en.cppreference.com/w/c/types/integer (last-retrieved: 2025-05-18)
2025-05-18 22:03:03 +02:00
jun
7ec2af0c33 Add unsigned integer wrapping functions 2025-05-16 13:44:27 +02:00
jun
8b78803ad8 Add more dbuf_str tests 2025-05-16 10:12:04 +02:00
jun
614a9716cc Fix failed assertion in guf_str_copy
An assertion GUF_ASSERT(str_is_valid(dst)) failed in guf_str_copy when it called guf_str_cstr(dst)
 since guf_str_cstr assumes an already valid string, which was not the case when src was a short string.

Therefore, we get the dst's c_str now without calling guf_str_cstr(dst)

(Found by writing DbufStrTest.)
2025-05-15 20:53:50 +02:00
jun
7585848ac9 Prevent more potential int promotion bugs 2025-05-15 13:24:29 +02:00
jun
9b64b22806 Make signed guf_wrapping_mul more general
Don't fail on mod == 0 (in weird cases where the given UNSIGNED_TYPE_MAX == SIGNED_TYPE_MAX)
but
res = mod > 0 ? (1u * res % mod) : res;
2025-05-15 09:21:30 +02:00
jun
466982ffcb Use better terminology for overflow and integer 'underflow' 2025-05-15 09:11:31 +02:00
jun
ec074d5753 Fix potential int-promotion bugs in ckdint
Expressions like
(uin16_t)a * (uint16_t)b * (uint16_t)c
might be promoted to (signed) int (in that example, on platforms where sizeof(int) > sizeof(uint16_t)),
and therefore lead to undefined behaviour on overflow.

The above expression can be fixed as
1u * (uint16_t)a * (uint16_t)b * (uint16_t)c
(The 1u makes sure a, b, and c would be promoted to unsigned int (instead of int) on platforms where sizeof(int) > sizeof(uint16_t))

cf. https://stackoverflow.com/questions/27001604/32-bit-unsigned-multiply-on-64-bit-causing-undefined-behavior
2025-05-15 08:46:54 +02:00
jun
b99434a611 Change C/CXX flags 2025-05-14 18:07:41 +02:00
jun
562dcc532d Refactor test 2025-05-14 17:37:19 +02:00
jun
776c4a8899 Add static/non-static option for guf_alloc_libc.h 2025-05-14 17:31:24 +02:00
jun
894d9e8fc4 Add name to alloc_tracker 2025-05-14 17:08:15 +02:00
jun
37f9011166 Add guf_alloc_tracker 2025-05-14 14:47:20 +02:00
jun
6ffb79f7a0 Fix implementation defined behaviour in guf_wrapping_mul 2025-05-14 08:51:41 +02:00
jun
1dba7661e6 Add math_ckdint tests 2025-05-13 21:14:20 +02:00
jun
c4f3616b23 Refactor tests 2025-05-13 17:36:08 +02:00
jun
6091eac820 Add guf_math_ckdint IMPL_STATIC etc. 2025-05-13 14:56:21 +02:00
jun
873cdf20b1 Add checked mul arithmetic 2025-05-13 12:45:17 +02:00
jun
9c417d2aa1 Add checked arithmetic 2025-05-11 08:55:03 +02:00
jun
c4b68d5ad2 Add guf_tok test 2025-05-09 15:43:52 +02:00
jun
864bd70ece Add more guf_str tests 2025-05-08 20:38:25 +02:00
jun
1013616b2d Re-implement guf_str tokeniser 2025-05-02 21:54:39 +02:00
jun
c6b0aa8d89 Add guf_str hash functions 2025-04-24 02:55:39 +02:00
jun
e98dc3b91e Fix guf_str bugs and add tests 2025-04-24 01:43:24 +02:00
jun
0910ee4bd8 Minor guf_id_pool changes 2025-04-09 06:27:35 +02:00
jun
f3e184da73 Fix guf_dict_init_with_capacity kv_idx_cap calculation 2025-03-29 17:32:13 +01:00
jun
ae7814fe7c Comment guf_rand 2025-03-29 16:16:06 +01:00
jun
d062784425 Add separate 32/64 bit versions to guf_rand 2025-03-29 01:55:32 +01:00
jun
05f995e855 Add guf_rand_splitmix32 2025-03-28 22:09:15 +01:00
jun
461006746e Add guf_str_substr 2025-03-28 20:26:43 +01:00
jun
9e0cd79ca0 Add guf_dict_shrink_capacity 2025-03-28 18:32:07 +01:00
jun
3ff4cd7572 Add more dict functions 2025-03-21 18:57:22 +01:00
jun
3ee07078f0 Add comments 2025-03-21 00:51:29 +01:00
jun
7630ecfdcf Change directory structure 2025-03-21 00:22:34 +01:00
jun
275f46226d Add more guf_str functions 2025-03-20 23:30:45 +01:00
jun
21d1b04e6b Add changeable load factor 2025-03-20 20:29:21 +01:00
jun
534ff261ca Add move- and copy ctors to dict and guf_str 2025-03-20 15:29:18 +01:00
jun
c039e24996 Use SIZE_MAX instead of SIZE_T_MAX 2025-03-19 23:03:10 +01:00
jun
29014f4c52 Fix dict asserts 2025-03-19 19:16:31 +01:00
jun
48b366d8e9 Fix warnings in release 2025-03-19 18:29:52 +01:00
jun
7e1bbc769e Replace puts with fputs in guf_err_to_str 2025-03-19 18:14:06 +01:00
jun
1e534731bb Pass key_hash to guf_dict_find_idx to avoid re-computation 2025-03-19 17:03:12 +01:00
jun
b01e087c85 Fix GUF_DICT_64_BIT_IDX and guf_dict_max_capacity() 2025-03-19 16:16:41 +01:00
jun
6a7bd2bd97 Use single u32/u64 as GUF_DICT_KV_META_T instead of two 2025-03-19 15:23:32 +01:00
jun
e535d39e3d Fix allocation overflow for guf_dbuf and guf_dict
(Implement GUF_ALLOC_MAX_BYTES and GUF_ALLOC_MAX_CAPACITY).
2025-03-18 13:43:36 +01:00
jun
cc0413116d Improve guf_id_pool 2025-03-17 23:08:30 +01:00
jun
ad884ee1e9 Implement guf_str 2025-03-17 21:17:07 +01:00
jun
9ddea4bb07 Change short-string approach to use 32 instead of 40 bytes 2025-03-11 12:24:44 +01:00
jun
c860a6ccfe Add 3x3 matrix inversion 2025-03-08 11:25:57 +01:00
jun
ae104919e0 Change linalg mat_inverse.
Still not sure whether it's better to calculate
rref[pivot_row][col] * (rref[row][pivot_col] / pivot_val) (option 1)
vs.
rref[pivot_row][col] * rref[row][pivot_col] / pivot_val   (option 2)

(i.e.  a * b / c vs. "a * (b/c))

in terms of floating point error.

But I think option 1 (current commit) is better, since the scale factor
(rref[row][pivot_col] / pivot_val) is always <= 1 here (I think).
2025-03-07 21:24:53 +01:00
jun
dac1d159b1 Fix linalg bugs 2025-03-07 16:06:45 +01:00
jun
9096a4f9c9 Add guf_nearly_zero/one 2025-03-07 13:42:28 +01:00
jun
7b433cd776 Add matrix inversion 2025-03-07 10:58:08 +01:00
jun
364dd603cf Fix guf_dict size types 2025-03-06 13:51:32 +01:00
jun
d057d76334 Rename GUF_STATIC_BUF_SIZE 2025-03-06 12:02:18 +01:00
jun
e489dd694b Add quaternion operations 2025-03-06 11:52:24 +01:00
jun
fc8118c182 Add linear algebra functions 2025-03-04 12:30:02 +01:00
jun
24bc8d5a15 Add guf_str_view functions 2025-03-04 08:18:35 +01:00
jun
301477f5c6 Add GUF_CSTR_TO_VIEW_CPP 2025-03-04 08:01:41 +01:00
jun
9d62df6a83 Add more dict tests 2025-03-04 06:52:42 +01:00
jun
8e6ffcdc70 Add dict_erase tests 2025-03-03 16:14:13 +01:00
jun
a41ff868f2 Fix guf_dict probing 2025-03-03 11:28:40 +01:00
jun
4d97725bba Fix guf_dict growth bug 2025-03-02 21:41:30 +01:00
jun
cd1c1cd5db Refactor 2025-03-02 18:25:54 +01:00
jun
8b02eff3b7 Make preserved_delims work (in guf_str_next_tok) 2025-02-27 13:02:28 +01:00
jun
217622d816 Add tokeniser 2025-02-27 10:21:21 +01:00
jun
d450cd8a45 Add utf-8 handling 2025-02-27 07:12:43 +01:00
jun
60e2849b01 Work on utf-8 2025-02-26 03:57:04 +01:00
jun
7a990c810e Add more tests 2025-02-25 15:12:38 +01:00
jun
6abe12c4c1 Improve tests 2025-02-25 14:01:20 +01:00
jun
c1e125dfcb Add C++ tests 2025-02-24 00:01:48 +01:00
jun
4c35d180e8 Improve iterator functions 2025-02-23 13:36:09 +01:00
jun
1f16b0e849 Fix dbuf iterator begin for dbuf.size == 0 2025-02-23 09:45:29 +01:00
jun
13abedd2ad Implement guf_dict 2025-02-23 09:18:50 +01:00
jun
81fc19aa85 Work on guf_dict 2025-02-19 08:18:18 +01:00
jun
22ebd8aa05 Add guf_rand with 32-bit operations (using xoshiro128** 1.1) 2025-02-18 20:06:59 +01:00
jun
f911933588 Fix overflow in guf_rand32range_i32 and guf_randrange_i64 2025-02-15 18:04:53 +01:00
jun
500fd47986 Add guf_rand32 2025-02-15 04:36:58 +01:00
jun
6b222eafc1 Add guf_rand 2025-02-15 03:00:15 +01:00
jun
fd58daa8b5 Change iterator 2025-02-01 13:31:15 +01:00
jun
df9d1c9c10 Add iter index functions 2025-01-30 16:10:10 +01:00
jun
67b5759e03 Change sort function name 2025-01-30 14:07:08 +01:00
jun
8c324c00f7 Major refactor 2025-01-30 13:29:14 +01:00
jun
c9b18a220e Rewrite dbuf 2025-01-27 10:06:54 +01:00
jun
be2daf72fd Add better error handling 2025-01-08 23:32:55 +01:00
jun
e668be2612 Add integer functions 2025-01-07 11:40:58 +01:00
jun
ad97de47a6 Add dbuf_sort 2025-01-05 03:48:35 +01:00
jun
73eb83484a Add cmp_void operators. 2025-01-05 02:36:36 +01:00
jun
9e0da64cb4 Use macro templates instead of void pointers 2025-01-04 19:47:15 +01:00

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