more double changes

src/hb-cff-interp-common.hh

@@ -229,10 +229,10 @@ struct Number
   {
     return (int32_t)(value * 65536.0);
   }
-  inline void set_real (float v)	{ value = (double)v; }
-  inline float to_real (void) const
+  inline void set_real (double v)	{ value = (double)v; }
+  inline double to_real (void) const
   {
-    return (float)value;
+    return value;
   }
 
   inline int ceil (void) const
@@ -520,7 +520,7 @@ struct ArgStack : Stack<ARG, 513>
     n.set_fixed (v);
   }
 
-  inline void push_real (float v)
+  inline void push_real (double v)
   {
     ARG &n = S::push ();
     n.set_real (v);

src/hb-cff-interp-dict-common.hh

@@ -103,9 +103,9 @@ struct DictOpSet : OpSet<Number>
     }
   }
 
-  static inline float parse_bcd (SubByteStr& substr)
+  static inline double parse_bcd (SubByteStr& substr)
   {
-    float v = 0.0f;
+    double v = 0.0;
 
     bool    neg = false;
     double  int_part = 0;
@@ -126,7 +126,7 @@ struct DictOpSet : OpSet<Number>
 	if (!substr.avail ())
 	{
 	  substr.set_error ();
-	  return 0.0f;
+	  return 0.0;
 	}
 	byte = substr[0];
 	substr.inc ();
@@ -152,13 +152,13 @@ struct DictOpSet : OpSet<Number>
 	    else
 	      value *= pow (10.0, (double)exp_part);
 	  }
-	  return (float)value;
+	  return value;
 
 	case NEG:
 	  if (i != 0)
 	  {
 	    substr.set_error ();
-	    return 0.0f;
+	    return 0.0;
 	  }
 	  neg = true;
 	  break;