diff options
| author | Kevin Ryde <user42@zip.com.au> | 2001-06-10 00:39:58 +0200 |
|---|---|---|
| committer | Kevin Ryde <user42@zip.com.au> | 2001-06-10 00:39:58 +0200 |
| commit | 57a63e5f184ba9beedf7ce60f34f9103c32a3031 (patch) | |
| tree | 76d46fe7ec84f0ba049d1770c5933f3c510b7259 /mpn/generic | |
| parent | adbd8d54a5670b43828ec5046a5770c0fc0b156e (diff) | |
| download | gmp-57a63e5f184ba9beedf7ce60f34f9103c32a3031.tar.gz | |
* mpn/generic/mul_1.c: Allow "incr" style overlaps.
Diffstat (limited to 'mpn/generic')
| -rw-r--r-- | mpn/generic/mul_1.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/mpn/generic/mul_1.c b/mpn/generic/mul_1.c index 7075839d9..604886309 100644 --- a/mpn/generic/mul_1.c +++ b/mpn/generic/mul_1.c @@ -25,6 +25,11 @@ MA 02111-1307, USA. */ #include "gmp-impl.h" #include "longlong.h" + +/* For reference, "incr" style overlaps are wanted in mpf_mul_ui, where an + mpf_mul_ui(x,x,y) if SIZ(x)>PREC(x) (either SIZ(x)==PREC(x)+1 as occurs + normally, or due to an mpf_set_prec_raw). */ + mp_limb_t mpn_mul_1 (mp_ptr res_ptr, mp_srcptr s1_ptr, @@ -35,10 +40,8 @@ mpn_mul_1 (mp_ptr res_ptr, register mp_size_t j; register mp_limb_t prod_high, prod_low; - /* mpf/mul_ui.c uses res_ptr==s1_ptr-1 */ ASSERT (s1_size >= 1); - ASSERT (res_ptr==s1_ptr-1 - || MPN_SAME_OR_SEPARATE_P (res_ptr, s1_ptr, s1_size)); + ASSERT (MPN_SAME_OR_INCR_P (res_ptr, s1_ptr, s1_size)); /* The loop counter and index J goes from -S1_SIZE to -1. This way the loop becomes faster. */ |