3 files changed, 9 insertions, 8 deletions
diff --git a/src/java/com/sun/gluegen/JavaEmitter.java b/src/java/com/sun/gluegen/JavaEmitter.java
index 0bf9702..60daf89 100644
--- a/src/java/com/sun/gluegen/JavaEmitter.java
+++ b/src/java/com/sun/gluegen/JavaEmitter.java
@@ -229,12 +229,12 @@ public class JavaEmitter implements GlueEmitter {
       try {
         // see if it's a double or float
         double dVal = Double.parseDouble(value);
+        double absVal = Math.abs(dVal);
         // if constant is small enough, store it as a float instead of a double
-        if (dVal > Float.MIN_VALUE && dVal < Float.MAX_VALUE) {
-          return new Float((float)dVal);
+        if (absVal < Float.MIN_VALUE || absVal > Float.MAX_VALUE) {
+            return new Double(dVal);
         }
-        return new Double(dVal);
-        
+        return new Float((float) dVal);
       } catch (NumberFormatException e2) {            
         throw new RuntimeException(
           "Cannot emit define \""+name+"\": value \""+value+
@@ -281,7 +281,8 @@ public class JavaEmitter implements GlueEmitter {
         if (optionalComment != null && optionalComment.length() != 0) {
           javaWriter().println("  /** " + optionalComment + " */");
         }
-        javaWriter().println("  public static final " + type + " " + name + " = " + value + ";");
+        String suffix = (type.equals("float") ? "f" : "");
+        javaWriter().println("  public static final " + type + " " + name + " = " + value + suffix + ";");
       }
     }
   }
diff --git a/src/java/com/sun/gluegen/cgram/GnuCParser.g b/src/java/com/sun/gluegen/cgram/GnuCParser.g
index e087a5c..7de057c 100644
--- a/src/java/com/sun/gluegen/cgram/GnuCParser.g
+++ b/src/java/com/sun/gluegen/cgram/GnuCParser.g
@@ -777,7 +777,7 @@ protected NumberSuffix
         ;
     
 Number
-        :       ( ( Digit )+ ( '.' | 'e' | 'E' ) )=> ( Digit )+
+        :       ( ('-')? ( Digit )+ ( '.' | 'e' | 'E' ) )=> ('-')? ( Digit )+
                 ( '.' ( Digit )* ( Exponent )?
                 | Exponent
                 ) 
@@ -797,7 +797,7 @@ Number
                 ( NumberSuffix
                 )*
 
-        |       '1'..'9' ( Digit )*     
+        |       ('-')? '1'..'9' ( Digit )*     
                 ( NumberSuffix
                 )*
 
diff --git a/src/java/com/sun/gluegen/pcpp/PCPP.java b/src/java/com/sun/gluegen/pcpp/PCPP.java
index d5d9604..e539cee 100644
--- a/src/java/com/sun/gluegen/pcpp/PCPP.java
+++ b/src/java/com/sun/gluegen/pcpp/PCPP.java
@@ -71,7 +71,7 @@ public class PCPP {
     tok.wordChars('A', 'Z');
     tok.wordChars('0', '9');
     tok.wordChars('_', '_');
-    tok.wordChars('.', '.');
+    tok.wordChars('-', '.');
     tok.wordChars(128 + 32, 255);
     tok.whitespaceChars(0, ' ');
     tok.quoteChar('"');