OneSadCookie

#import <Foundation/Foundation.h>

void eachrow(size_t total, size_t nrows, size_t ncols, char const*** rows, BOOL(^cb)(size_t i, size_t ncols, char const **row, size_t *lengths))
{
    size_t lengths[ncols];
    for (size_t k = 0; k < total; ++k)
    {
        size_t i = k % nrows;
        for (size_t j = 0; j < ncols; ++j)
        {