Compare commits

..

98 Commits

Author SHA1 Message Date
44ed06f72c Add README and LICENSE 2025-12-23 14:11:06 +01:00
c31fac9884 Fix more GCC warnings 2025-12-23 14:11:06 +01:00
973302fb31 Fix GCC errors 2025-12-23 14:11:06 +01:00
bc4a8918e2 Add string functions 2025-12-23 14:11:06 +01:00
1f37fbb404 Make guf_utf8_char 4 bytes instead of 5
(Null-termination was superfluous here.)
2025-12-23 14:11:06 +01:00
f073276bc5 Use least vs fast int types 2025-12-23 14:11:06 +01:00
d19177c275 Use portable guf_math_ckdint functions in guf_rand 2025-12-23 14:11:06 +01:00
8b29a707ab Fix guf_id_pool integer portability 2025-12-23 14:11:06 +01:00
dfd2f0e4da Fix guf_str uninit 2025-12-23 14:11:06 +01:00
6bf47f0ca6 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)
2025-12-23 14:11:06 +01:00
b7e3eec2c1 Add unsigned integer wrapping functions 2025-12-23 14:11:06 +01:00
5eb3c22a01 Add more dbuf_str tests 2025-12-23 14:11:06 +01:00
fad608e2ed 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.)
2025-12-23 14:11:06 +01:00
1a5a32d9b9 Prevent more potential int promotion bugs 2025-12-23 14:11:06 +01:00
bce0407674 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;
2025-12-23 14:11:06 +01:00
26bab4efbe Use better terminology for overflow and integer 'underflow' 2025-12-23 14:11:06 +01:00
7b2334a668 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
2025-12-23 14:11:05 +01:00
5828c4ecec Change C/CXX flags 2025-12-23 14:11:05 +01:00
64a71087b3 Refactor test 2025-12-23 14:11:05 +01:00
148cc741eb Add static/non-static option for guf_alloc_libc.h 2025-12-23 14:11:05 +01:00
08b7edbdf4 Add name to alloc_tracker 2025-12-23 14:11:05 +01:00
9cec01cc50 Add guf_alloc_tracker 2025-12-23 14:11:05 +01:00
5cb2f240e0 Fix implementation defined behaviour in guf_wrapping_mul 2025-12-23 14:11:05 +01:00
dd4155d944 Add math_ckdint tests 2025-12-23 14:11:05 +01:00
26015e2380 Refactor tests 2025-12-23 14:11:05 +01:00
e3b18473f9 Add guf_math_ckdint IMPL_STATIC etc. 2025-12-23 14:11:05 +01:00
52d9f2c859 Add checked mul arithmetic 2025-12-23 14:11:05 +01:00
4111f54159 Add checked arithmetic 2025-12-23 14:11:05 +01:00
111023b7b1 Add guf_tok test 2025-12-23 14:11:05 +01:00
f5a91be8df Add more guf_str tests 2025-12-23 14:11:05 +01:00
936a9dac56 Re-implement guf_str tokeniser 2025-12-23 14:11:05 +01:00
9b66649e01 Add guf_str hash functions 2025-12-23 14:11:05 +01:00
e923775769 Fix guf_str bugs and add tests 2025-12-23 14:11:05 +01:00
ac5e66b481 Minor guf_id_pool changes 2025-12-23 14:11:05 +01:00
e2036b768e Fix guf_dict_init_with_capacity kv_idx_cap calculation 2025-12-23 14:11:05 +01:00
082b004391 Comment guf_rand 2025-12-23 14:11:05 +01:00
5d2c4be265 Add separate 32/64 bit versions to guf_rand 2025-12-23 14:11:05 +01:00
e8ea48dc45 Add guf_rand_splitmix32 2025-12-23 14:11:05 +01:00
4a231dc58f Add guf_str_substr 2025-12-23 14:11:05 +01:00
883154f2ab Add guf_dict_shrink_capacity 2025-12-23 14:11:05 +01:00
b1a5094d2b Add more dict functions 2025-12-23 14:11:05 +01:00
ce4b25318d Add comments 2025-12-23 14:11:05 +01:00
b541100a76 Change directory structure 2025-12-23 14:11:05 +01:00
0376fd3e99 Add more guf_str functions 2025-12-23 14:11:05 +01:00
eed418e6cd Add changeable load factor 2025-12-23 14:11:05 +01:00
8b696b31fc Add move- and copy ctors to dict and guf_str 2025-12-23 14:11:05 +01:00
e1bc585f68 Use SIZE_MAX instead of SIZE_T_MAX 2025-12-23 14:11:05 +01:00
25cf7f17b7 Fix dict asserts 2025-12-23 14:11:05 +01:00
c8ffde8c19 Fix warnings in release 2025-12-23 14:11:05 +01:00
e1af4f76a7 Replace puts with fputs in guf_err_to_str 2025-12-23 14:11:05 +01:00
ec9cd97631 Pass key_hash to guf_dict_find_idx to avoid re-computation 2025-12-23 14:11:05 +01:00
18f4496204 Fix GUF_DICT_64_BIT_IDX and guf_dict_max_capacity() 2025-12-23 14:11:05 +01:00
f3f7cec5f4 Use single u32/u64 as GUF_DICT_KV_META_T instead of two 2025-12-23 14:11:05 +01:00
5d8fa1cc62 Fix allocation overflow for guf_dbuf and guf_dict
(Implement GUF_ALLOC_MAX_BYTES and GUF_ALLOC_MAX_CAPACITY).
2025-12-23 14:11:05 +01:00
52ca55f1d6 Improve guf_id_pool 2025-12-23 14:11:05 +01:00
81ab99ff15 Implement guf_str 2025-12-23 14:11:05 +01:00
517151b342 Change short-string approach to use 32 instead of 40 bytes 2025-12-23 14:11:05 +01:00
3d83ea0b17 Add 3x3 matrix inversion 2025-12-23 14:11:05 +01:00
7e348e74bc 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).
2025-12-23 14:11:05 +01:00
ea6a63aa3a Fix linalg bugs 2025-12-23 14:11:05 +01:00
bf5a8d9aac Add guf_nearly_zero/one 2025-12-23 14:11:05 +01:00
5f16855dab Add matrix inversion 2025-12-23 14:11:05 +01:00
93e9603218 Fix guf_dict size types 2025-12-23 14:11:05 +01:00
4a0a77d438 Rename GUF_STATIC_BUF_SIZE 2025-12-23 14:11:05 +01:00
ac9fa9f9ce Add quaternion operations 2025-12-23 14:11:05 +01:00
57e405714d Add linear algebra functions 2025-12-23 14:11:05 +01:00
d9114104c6 Add guf_str_view functions 2025-12-23 14:11:04 +01:00
f942cd8160 Add GUF_CSTR_TO_VIEW_CPP 2025-12-23 14:11:04 +01:00
2bf683906b Add more dict tests 2025-12-23 14:11:04 +01:00
8197a5f45f Add dict_erase tests 2025-12-23 14:11:04 +01:00
98774f842f Fix guf_dict probing 2025-12-23 14:11:04 +01:00
6bed0d7616 Fix guf_dict growth bug 2025-12-23 14:11:04 +01:00
467f9be00a Refactor 2025-12-23 14:11:04 +01:00
02cd5937a1 Make preserved_delims work (in guf_str_next_tok) 2025-12-23 14:11:04 +01:00
947041838e Add tokeniser 2025-12-23 14:11:04 +01:00
d59d29f9f1 Add utf-8 handling 2025-12-23 14:11:04 +01:00
ead8bd8914 Work on utf-8 2025-12-23 14:11:04 +01:00
5e377a4c4d Add more tests 2025-12-23 14:11:04 +01:00
d687bfe441 Improve tests 2025-12-23 14:11:04 +01:00
27d0cc65e4 Add C++ tests 2025-12-23 14:11:04 +01:00
0e4e3f392c Improve iterator functions 2025-12-23 14:11:04 +01:00
ce1f465326 Fix dbuf iterator begin for dbuf.size == 0 2025-12-23 14:11:04 +01:00
df43178b15 Implement guf_dict 2025-12-23 14:11:04 +01:00
099ee09a94 Work on guf_dict 2025-12-23 14:11:04 +01:00
0b39cd3422 Add guf_rand with 32-bit operations (using xoshiro128** 1.1) 2025-12-23 14:11:04 +01:00
03638d5462 Fix overflow in guf_rand32range_i32 and guf_randrange_i64 2025-12-23 14:11:04 +01:00
c584279892 Add guf_rand32 2025-12-23 14:11:04 +01:00
77b5d60d6f Add guf_rand 2025-12-23 14:11:04 +01:00
e01321b2b9 Change iterator 2025-12-23 14:11:04 +01:00
319ada61fd Add iter index functions 2025-12-23 14:11:04 +01:00
f04a426489 Change sort function name 2025-12-23 14:11:04 +01:00
42f6a4e20d Major refactor 2025-12-23 14:11:04 +01:00
6addd12dcd Rewrite dbuf 2025-12-23 14:11:04 +01:00
f5d9c604e9 Add better error handling 2025-12-23 14:11:04 +01:00
71910a2404 Add integer functions 2025-12-23 14:11:04 +01:00
6256332f4c Add dbuf_sort 2025-12-23 14:11:04 +01:00
ee7a81e4c1 Add cmp_void operators. 2025-12-23 14:11:04 +01:00
44ee8494d7 Use macro templates instead of void pointers 2025-12-23 14:11:04 +01:00

Diff Content Not Available