diff options
| -rw-r--r-- | doc/user.pod | 10 | ||||
| -rw-r--r-- | include/isl_map.h | 1 | ||||
| -rw-r--r-- | isl_map.c | 22 |
3 files changed, 20 insertions, 13 deletions
diff --git a/doc/user.pod b/doc/user.pod index 03cd2145..de51235e 100644 --- a/doc/user.pod +++ b/doc/user.pod @@ -852,7 +852,7 @@ is equal to C<dom>. __isl_give isl_set **empty); Given a basic set C<bset>, the following function simply -returns a set contains the lexicographic minimum +returns a set containing the lexicographic minimum of the elements in C<bset>. __isl_give isl_set *isl_basic_set_lexmin( @@ -879,6 +879,14 @@ is equal to C<dom>. __isl_take isl_basic_set *dom, __isl_give isl_set **empty); +Given a basic map C<bmap>, the following function simply +returns a map mapping each element in the domain of +C<bmap> to the lexicographic minimum of all elements associated +to that element. + + __isl_give isl_map *isl_basic_map_lexmin( + __isl_take isl_basic_map *bmap); + =head1 Applications Although C<isl> is mainly meant to be used as a library, diff --git a/include/isl_map.h b/include/isl_map.h index 970d6d09..887393cd 100644 --- a/include/isl_map.h +++ b/include/isl_map.h @@ -198,6 +198,7 @@ __isl_give isl_map *isl_basic_map_partial_lexmax( __isl_give isl_map *isl_basic_map_partial_lexmin( __isl_take isl_basic_map *bmap, __isl_take isl_basic_set *dom, __isl_give isl_set **empty); +__isl_give isl_map *isl_basic_map_lexmin(__isl_take isl_basic_map *bmap); void isl_basic_map_dump(__isl_keep isl_basic_map *bmap, FILE *out, int indent); @@ -3195,29 +3195,27 @@ struct isl_set *isl_basic_set_partial_lexmax( dom, empty); } -struct isl_set *isl_basic_set_lexmin(struct isl_basic_set *bset) +__isl_give isl_map *isl_basic_map_lexmin(__isl_take isl_basic_map *bmap) { - struct isl_basic_map *bmap = NULL; struct isl_basic_set *dom = NULL; struct isl_map *min; - struct isl_dim *param_dim; + struct isl_dim *dom_dim; - if (!bset) - goto error; - bmap = isl_basic_map_from_basic_set(bset, isl_dim_copy(bset->dim)); if (!bmap) goto error; - param_dim = isl_dim_domain(isl_dim_copy(bmap->dim)); - dom = isl_basic_set_universe(param_dim); - if (!dom) - goto error; - min = isl_basic_map_partial_lexmin(bmap, dom, NULL); - return isl_map_range(min); + dom_dim = isl_dim_domain(isl_dim_copy(bmap->dim)); + dom = isl_basic_set_universe(dom_dim); + return isl_basic_map_partial_lexmin(bmap, dom, NULL); error: isl_basic_map_free(bmap); return NULL; } +__isl_give isl_set *isl_basic_set_lexmin(__isl_take isl_basic_set *bset) +{ + return (isl_set *)isl_basic_map_lexmin((isl_basic_map *)bset); +} + static struct isl_map *isl_map_reset_dim(struct isl_map *map, struct isl_dim *dim) { |