forked from ibphoenix/tomsfastmath
Fork of tomsfastmath
c32affe350
The comba sqr code does not check the maximum bounds of fp_int; eg: if you invoke fp_sqr_comba_20, it will write 40 digits to the destination even if FP_SIZE < 40. This is correct for achieving high speeds, but it means that it is the caller's responsibility to check for such overflows. fp_sqr.c only checks for numeric overflows (a->used * 2 >= FP_SIZE) though. This means that if you call fp_sqr() with a small number (say 1), and your FP_SIZE is 10, and you have enabled a fp_sqr_comba_8, it will overflow your buffer by writing 16 digits. Since the exact subset of active comba multipliers/sqrs are up to the user (in tfm.h), we fix the code never to invoke them if they can cause overflows. |
||
|---|---|---|
| demo | ||
| doc | ||
| mtest | ||
| pre_gen | ||
| random_txt_files | ||
| src | ||
| .gitignore | ||
| changes.txt | ||
| filter.pl | ||
| gen.pl | ||
| genlist.sh | ||
| LICENSE | ||
| makefile | ||
| makefile.shared | ||
| mess.sh | ||
| parsenames.pl | ||
| SPONSORS | ||
| tfm.tex | ||
| TODO | ||
| updatemakes.sh | ||