1berry/ruby
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[ruby/prism] Explicitly cast from uint64_t to double for mid-square hash

Browse Source 
https://github.com/ruby/prism/commit/06c6501044
This commit is contained in:
Kevin Newton 2024-04-05 13:48:40 -04:00 committed by git
parent 5e93cf9250
commit 413a151a6b
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
prism/prism.c
View File

@ -811,11 +811,11 @@ static uint32_t
pm_locals_hash(pm_constant_id_t name) {
uint64_t square = (uint64_t) name * (uint64_t) name;
uint32_t num_digits = (uint32_t) floor(log10(square) + 1);
uint32_t num_digits = (uint32_t) floor(log10((double) square) + 1);
uint32_t start = num_digits / 2;
uint32_t end = start + 1;
return (uint32_t) (((uint64_t) ((square / pow(10, start))) % (uint64_t) pow(10, end)));
return (uint32_t) (((uint64_t) ((square / ((uint64_t) pow(10, (double) start)))) % (uint64_t) pow(10, (double) end)));
}
/**