| Re: [eigen] Feature suggestion: interior row and column ranges [patch attached] |
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As you said: Ideally the naming is clash free, consistent and of
little surprise.
Because I didn't know Eigen or the English language well enough I'm
totally undecided.
But let me post some Sunday morning thoughts:
geometric names:
topRows - middleRows - bottomRows, leftCols - middleCols - rightCols
block names:
topRows - blockRows - bottomRows, leftCols - blockCols - rightCols
sequential names:
startRows - innerRows - endRows, startCols - innerCols - endCols
or
firstRows - middleRows - lastRows, firstCols - middleCols - lastCols
oldie names: headRows - ???Rows - tailRows
What, if there are range expression object types? Would that be possible
w/o runtime costs?:
Something in the lines of:
blockRange<startrow, endrow, startcol, endcol> brange
indexRange<start, end> irange
topRows(3) -> blockRange brange1(1,3,Dynamic,Dynamic)
bottomRows(3) -> blockRange brange2(-3,-1,Dynamic,Dynamic)
innerRows(3,2) -> blockRange brange3(3,3+2,Dynamic, Dynamic)
=>
cout << "A(3..5,:) =\n" << A(brange3) << endl;
or
indexRange<3,2> irange1;
cout << "A(3..5,:) =\n" << A.rows(irange1) << endl;
Cheers
Frank
P.S.
I'm eager