* doublest.c: Improve comments a bit.

(floatformat_from_length): New function.
(NAN): Define to 0.0 if not already defined.
(extract_floating): Rewrite to use floatformat_from_length.  Warn
instead of error if LEN doesn't match a known floating-point type,
and return NaN (or 0.0 if NaN isn't available) in that case.
(store_floating): Likewise, but zero out the target byte-stream if
LEN doesn't match a known floating-point type.
(extract_typed_floating): Reformat a bit.
(store_typed_floating): Reformat a bit.  Add comment about zeroing
out padding in the target buffer.
* doublest.h (extract_floating, store_floating): Fix comment about
deprecation of these functions.  Add parameter names to prototypes.

1 files changed, 6 insertions, 3 deletions

diff --git a/gdb/doublest.h b/gdb/doublest.h
index d3955b37955..a31d8497fd1 100644
--- a/gdb/doublest.h
+++ b/gdb/doublest.h
@@ -61,9 +61,12 @@ extern int floatformat_is_negative (const struct floatformat *, char *);
 extern int floatformat_is_nan (const struct floatformat *, char *);
 extern char *floatformat_mantissa (const struct floatformat *, char *);
 
-/* Use extract_typed_float() and store_typed_float(). */
-extern DOUBLEST extract_floating (const void *in, int); /* DEPRECATED */
-extern void store_floating (void *, int, DOUBLEST); /* DEPRECATED */
+/* These two functions are deprecated in favour of
+   extract_typed_floating and store_typed_floating.  See comments in
+   'doublest.c' for details.  */
+
+extern DOUBLEST extract_floating (const void *addr, int len);
+extern void store_floating (void *addr, int len, DOUBLEST val);
 
 extern DOUBLEST extract_typed_floating (const void *addr,
 					const struct type *type);