changed readInt64As to an argument instead of extern object

Author: badasahog

src/fread.c

@@ -26,8 +26,6 @@
 #include <stdbool.h>
 #include "freadLookups.h"
 
-extern colType readInt64As;
-
 // Private globals to save passing all of them through to highly iterated field processors
 static const char *sof, *eof;
 static char sep;
@@ -2513,8 +2511,8 @@ int freadMain(freadMainArgs _args) {
               // sure a single re-read will definitely work.
               while (++absType<CT_STRING && disabled_parsers[absType]) {};
 
-              if(readInt64As != CT_INT64 && absType == CT_INT64)
-                thisType = TOGGLE_BUMP(readInt64As);
+              if(args.readInt64As != CT_INT64 && absType == CT_INT64)
+                thisType = TOGGLE_BUMP(args.readInt64As);
               else
                 thisType = TOGGLE_BUMP(absType);
 

src/fread.h

@@ -167,6 +167,9 @@ typedef struct freadMainArgs
   // should datetime with no Z or UTZ-offset be read as UTC?
   bool noTZasUTC;
 
+  // Integer64 remap
+  colType readInt64As;
+
   char _padding[1];
 
   // Any additional implementation-specific parameters.

src/freadR.c

@@ -177,6 +177,8 @@ SEXP freadR(
     readInt64As = CT_FLOAT64;
   } else STOP(_("Invalid value integer64='%s'. Must be 'integer64', 'character', 'double' or 'numeric'"), tt);
 
+  args.readInt64As = readInt64As;
+
   colClassesSxp = colClassesArg;
 
   selectSxp = selectArg;