outer product

op.cxx

#include <iostream>
#include "peg.inl.h"

@macro void foo(const char* str) {
  @meta auto x = parse(str);
  @meta x.dump(std::cout);
}

float W[32][16], x[32], y[16];

void outer_product() {
  @macro foo(`
     all(i, j) in (32, 16)
       W[i][j] = x[i] * y[j]
  `);
}

int main() {
  return 0;
}