Mercurial > hg > octave-lyh
diff liboctave/idx-vector.h @ 10273:3a8c13b71612
implement special-case optimization for sort of index vectors
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Mon, 08 Feb 2010 11:16:52 +0100 |
| parents | 4c0cdbe0acca |
| children | 22a7913bbeb5 |
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--- a/liboctave/idx-vector.h +++ b/liboctave/idx-vector.h @@ -89,6 +89,8 @@ // Sorts, maybe uniqifies, and returns a clone object pointer. virtual idx_base_rep *sort_uniq_clone (bool uniq = false) = 0; + // Sorts, and returns a sorting permutation (aka Array::sort). + virtual idx_base_rep *sort_idx (Array<octave_idx_type>&) = 0; // Checks whether the index is colon or a range equivalent to colon. virtual bool is_colon_equiv (octave_idx_type) const @@ -135,6 +137,8 @@ idx_base_rep *sort_uniq_clone (bool = false) { count++; return this; } + idx_base_rep *sort_idx (Array<octave_idx_type>&); + bool is_colon_equiv (octave_idx_type) const { return true; } @@ -183,6 +187,8 @@ idx_base_rep *sort_uniq_clone (bool uniq = false); + idx_base_rep *sort_idx (Array<octave_idx_type>&); + bool is_colon_equiv (octave_idx_type n) const { return start == 0 && step == 1 && len == n; } @@ -240,6 +246,8 @@ idx_base_rep *sort_uniq_clone (bool = false) { count++; return this; } + idx_base_rep *sort_idx (Array<octave_idx_type>&); + bool is_colon_equiv (octave_idx_type n) const { return n == 1 && data == 0; } @@ -305,6 +313,8 @@ idx_base_rep *sort_uniq_clone (bool uniq = false); + idx_base_rep *sort_idx (Array<octave_idx_type>&); + dim_vector orig_dimensions (void) const { return orig_dims; } @@ -369,6 +379,8 @@ idx_base_rep *sort_uniq_clone (bool = false) { count++; return this; } + idx_base_rep *sort_idx (Array<octave_idx_type>&); + dim_vector orig_dimensions (void) const { return orig_dims; } @@ -560,6 +572,9 @@ idx_vector sorted (bool uniq = false) const { return idx_vector (rep->sort_uniq_clone (uniq)); } + idx_vector sorted (Array<octave_idx_type>& sidx) const + { return idx_vector (rep->sort_idx (sidx)); } + dim_vector orig_dimensions (void) const { return rep->orig_dimensions (); } octave_idx_type orig_rows (void) const