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speedups for blank sparse submatrices

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This commit is contained in:
conrad
2026-03-15 17:33:41 +10:00
parent 5491a20833
commit f021766215
1 changed files with 8 additions and 0 deletions
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include/armadillo_bits/SpSubview_meat.hpp
+8
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@@ -681,6 +681,8 @@ SpSubview<eT>::for_each(functor F)
m.sync_csc();
m.invalidate_cache();
if(n_nonzero == 0) { return; }
const uword lstart_row = aux_row1;
const uword lend_row = aux_row1 + n_rows;
@@ -737,6 +739,8 @@ SpSubview<eT>::for_each(functor F) const
m.sync_csc();
if(n_nonzero == 0) { return; }
const uword lstart_row = aux_row1;
const uword lend_row = aux_row1 + n_rows;
@@ -776,6 +780,8 @@ SpSubview<eT>::transform(functor F)
m.sync_csc();
m.invalidate_cache();
if(n_nonzero == 0) { return; }
const uword lstart_row = aux_row1;
const uword lend_row = aux_row1 + n_rows;
@@ -846,6 +852,8 @@ SpSubview<eT>::replace(const eT old_val, const eT new_val)
m.sync_csc();
m.invalidate_cache();
if(n_nonzero == 0) { return; }
const uword lstart_row = aux_row1;
const uword lend_row = aux_row1 + n_rows;