--- loncom/homework/caparesponse/capa.i	2004/03/13 00:23:27	1.4
+++ loncom/homework/caparesponse/capa.i	2024/04/24 21:11:49	1.7
@@ -3,31 +3,58 @@
 
 %}
 
-%typemap(perl5,in) char** reterror (char* cvalue) {
+%typemap(in) char** reterror (char* cvalue) {
   SV* tempsv;
-  if (!SvROK($source)) {
+  int len;
+  if (!SvROK($input)) {
     croak("expected a reference\n");
   }
-  tempsv = SvRV($source);
+  tempsv = SvRV($input);
   if ((!SvPOK(tempsv))) {
     croak("expected a double reference\n");
   }
-  int len;
   cvalue = SvPV(tempsv,len);
-  $target = &cvalue;
+  $1 = &cvalue;
 }
 
-%typemap(perl5,argout) char ** reterror {
+%typemap(argout) char ** reterror {
   SV *tempsv;
   tempsv = SvRV($arg);
-  if (($source!=NULL) && (*$source!=NULL)) {
-    sv_setpv(tempsv, *$source);
-    free(*$source);
+  if (($1!=NULL) && (*$1!=NULL)) {
+    sv_setpv(tempsv, *$1);
+    free(*$1);
+  }
+}
+
+%typemap(in) double* scaled {
+  double *temp;
+  if (!SvROK($input)) {
+    croak("expected a reference\n");
+  }
+  SV* tempsv;
+  tempsv = SvRV($input);
+  if (!SvPOK(tempsv) && !SvIOK(tempsv) && !SvNOK(tempsv)) {
+    croak("expected a single reference to a scalar\n");
   }
+  temp = malloc(sizeof(double));
+  *temp = SvNV(tempsv);
+  $1 = temp;
 }
+
+%typemap(argout) double* scaled {
+  SV *tempsv;
+  tempsv = SvRV($arg);
+  sv_setnv(tempsv, *$1);
+  free($1);
+}
+
+
 extern int caparesponse_capa_check_answer(char *response,char *correct,
 				   int type,int tol_type,double tolerance,
 				   int sig_lbound,int sig_ubound, 
 				   char *ans_fmt, char *unit_str,
 				   int calc, char *id_list, char *pts_list,
 				   char *rndseed, char** reterror);
+
+extern int caparesponse_get_real_response(char* unit_str, char* answer,
+					  double* scaled);