Function __allocCString

sqlite-wasm-cos/sqlite3-node.mjs:10234–10245

(str)

     to the configured dealloc() function.
  */
  const __allocCString = function(str){
    const u = __utf8Encoder.encode(str);
    const mem = alloc(u.length+1);
    if(!mem) toss("Allocation error while duplicating string:",str);
    const h = heap();
    //let i = 0;
    //for( ; i < u.length; ++i ) h[mem + i] = u[i];
    h.set(u, Number(mem));
    h[__ptrAdd(mem, u.length)] = 0;
    //log("allocCString @",mem," =",u);
    return mem;
  };

  /**
     Sets the given struct member of obj to a dynamically-allocated,