fwrite comment added only. #580

src/fwrite.c

@@ -15,14 +15,18 @@
 #define WRITE write
 #define CLOSE close
 #endif
- 
+
 static inline int maxStrLen(SEXP x, int na_len) {
  // The max nchar of any string in a column or factor level
  int max=na_len, nrow=length(x);
  for (int i=0; i<nrow; i++) {
  int l = LENGTH(STRING_ELT(x,i));
  if (l>max) max=l;
  }
+ // TODO if(quote) count them here (we hopped already to get LENGTH), add that quote count to max
+ // exactly and remove the *(1+quote) later
+ // if there are no quotes present in any string in a column save in quotePresent[ncol] lookup
+ // and switch to memcpy when it's known no quotes are present to be escaped for that column
  return max;
 }