Whitespace/comment cleanup. Use PARAMS in tc-vax.c.

Make various routines return null pointer instead of empty string for
success indication.

6 files changed, 27 insertions, 12 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 8e0cd9f..10659f0 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,18 @@
+Mon Sep 27 15:21:55 1993  Ken Raeburn  (raeburn@cambridge.cygnus.com)
+
+	* config/atof-vax.c (md_atof): Return null on success instead of
+	empty string.
+	* config/atof-tahoe.c (md_atof): Ditto.
+	* read.c (float_cons): Expect a null pointer for success, not an
+	empty string.
+
+	* hash.c (hash_insert, hash_jam, hash_grow): Return null pointer
+	on success, instead of empty string.  All callers changed.
+
+	* config/tc-vax.c: Use PARAMS in declarations.
+	(vip_op): Use NULL instead of empty string for success in error
+	and warning fields.
+
 Sun Sep 26 23:45:29 1993  Ken Raeburn  (raeburn@cambridge.cygnus.com)
 
 	* expr.c (expr) [DIFF_EXPR_OK]: Permit subtraction of two symbols
diff --git a/gas/config/atof-tahoe.c b/gas/config/atof-tahoe.c
index a80c89e..195ea2f 100644
--- a/gas/config/atof-tahoe.c
+++ b/gas/config/atof-tahoe.c
@@ -365,7 +365,7 @@ flonum_gen2tahoe (format_letter, f, words)
  *	Address of where to return size of literal (in chars).
  *
  * Out:	Input_line_pointer -> of next char after floating number.
- *	Error message, or "".
+ *	Error message, or 0.
  *	Floating point literal.
  *	Number of chars we used for the literal.
  */
@@ -425,7 +425,7 @@ md_atof (what_statement_type, literalP, sizeP)
     };
 
   *sizeP = number_of_chars;
-  return (kind_of_float ? "" : "Bad call to md_atof()");
-}				/* md_atof() */
+  return kind_of_float ? 0 : "Bad call to md_atof()";
+}
 
 /* atof_tahoe.c */
diff --git a/gas/config/obj-coffbfd.c b/gas/config/obj-coffbfd.c
index ce1e94c..dd5e1e7 100644
--- a/gas/config/obj-coffbfd.c
+++ b/gas/config/obj-coffbfd.c
@@ -1319,7 +1319,7 @@ tag_insert (name, symbolP)
 {
   register const char *error_string;
 
-  if (*(error_string = hash_jam (tag_hash, name, (char *) symbolP)))
+  if ((error_string = hash_jam (tag_hash, name, (char *) symbolP)))
     {
       as_fatal ("Inserting \"%s\" into structure table failed: %s",
 		name, error_string);
diff --git a/gas/config/tc-a29k.c b/gas/config/tc-a29k.c
index 1f4957f..72b61f7 100644
--- a/gas/config/tc-a29k.c
+++ b/gas/config/tc-a29k.c
@@ -332,7 +332,7 @@ md_begin ()
 	}
 
       retval = hash_insert (op_hash, name, (PTR) &machine_opcodes[i]);
-      if (retval != NULL && *retval != '\0')
+      if (retval != NULL)
 	{
 	  fprintf (stderr, "internal error: can't hash `%s': %s\n",
 		   machine_opcodes[i].name, retval);
diff --git a/gas/config/tc-m88k.c b/gas/config/tc-m88k.c
index 245fc20..961c418 100644
--- a/gas/config/tc-m88k.c
+++ b/gas/config/tc-m88k.c
@@ -201,7 +201,7 @@ md_begin ()
 
       retval = hash_insert (op_hash, name, &m88k_opcodes[i]);
 
-      if (retval != NULL && *retval != '\0')
+      if (retval != NULL)
 	as_fatal ("Can't hash instruction '%s':%s",
 		  m88k_opcodes[i].name, retval);
 
diff --git a/gas/config/tc-tahoe.c b/gas/config/tc-tahoe.c
index 5fc47d3..ed5fb61 100644
--- a/gas/config/tc-tahoe.c
+++ b/gas/config/tc-tahoe.c
@@ -346,16 +346,16 @@ const relax_typeS
 #undef WB
 /* End relax stuff */
 
-static struct hash_control *op_hash = NULL;	/* handle of the OPCODE hash table
-						   NULL means any use before md_begin() will
-						   crash */
+/* Handle of the OPCODE hash table.  NULL means any use before
+   md_begin() will crash.  */
+static struct hash_control *op_hash;
 
 /* Init function. Build the hash table. */
 void
 md_begin ()
 {
   struct tot *tP;
-  char *errorval = "";
+  char *errorval = 0;
   int synthetic_too = 1;	/* If 0, just use real opcodes. */
 
   if ((op_hash = hash_new ()))
@@ -376,9 +376,9 @@ md_begin ()
     {
       errorval = "Virtual memory exceeded";
     }
-  if (*errorval)
+  if (errorval)
     as_fatal (errorval);
-}				/* md_begin */
+}
 
 void
 md_end ()