--- loncom/homework/caparesponse/caparesponse.c	2005/12/20 19:59:52	1.20
+++ loncom/homework/caparesponse/caparesponse.c	2024/04/29 00:34:55	1.23
@@ -1,6 +1,6 @@
 /* The LearningOnline Network with CAPA 
  * CAPA wrapper code
- * $Id: caparesponse.c,v 1.20 2005/12/20 19:59:52 albertel Exp $
+ * $Id: caparesponse.c,v 1.23 2024/04/29 00:34:55 raeburn Exp $
  *
  * Copyright Michigan State University Board of Trustees
  *
@@ -27,6 +27,7 @@
 
 #include <capaCommon.h>
 #include <ranlib.h>
+#include <ctype.h> /* isdigit() */
 
 PointsList_t * parse_pts_list (char *pts_list) {
   PointsList_t *new=NULL, *end=NULL, *beforeend=NULL, *rlist=NULL;
@@ -135,11 +136,10 @@ int caparesponse_get_real_response (char
 				    double* scaled) {
   //double caparesponse_get_real_response (char* unit_str, char* answer) {
   int     input_len,all_alphabet,idx,outcome=-1,result;
-  double  n_part,scale=1.0,given,target;
+  ouble  n_part,scale=1.0,given;
   char    input[ANSWER_STRING_LENG],filename[FILE_NAME_LENGTH],
     tmp_unit_str[ANSWER_STRING_LENG];
   Unit_t *ans_unit;
-  long    seed1,seed2;
   FILE   *fp;
   sprintf(filename,"/home/httpd/html/res/adm/includes/capa.units");
   if ((fp=fopen(filename,"r"))==NULL) {
@@ -184,14 +184,13 @@ int caparesponse_get_real_response (char
       *scaled=given;
       /* convert the given answer into proper scale for units */
     } /* end if unit check */
-  } else { /* user entered a
-lphabet, but no number */
+  } else { /* user entered alphabet, but no number */
     result = WANTED_NUMERIC;
   } 
   return result;
 }
 
-/* Testing harnass
+/* Testing harness
 int main(void) {
   int result=0;
   char *reterror=NULL;