Compiler warnings

[Andrew Fitzgibbon]

for (int i = 0; i < num_rows(); ++i) {

    mutable_rows()[i] = index_into_values_and_cols;

    const int num_nonzero_columns = dynamic_cols_[i].size();

    if (num_nonzero_columns > 0) {

      memcpy(mutable_cols() + index_into_values_and_cols, ...

I get a few size_t -> int compiler warnings, VS2015 on Windows, e.g. third line above.   I would normally fix them by propagating the size_t, but wonder if there are any known gotchas, e.g. bad interaction with compiler optimization or omp?

[Sameer Agarwal]

There are no gotchas that I know of.   

Sameer

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[Andrew Fitzgibbon]

OK, I'll have a look at zapping them.