toplev.c (lang_options): Add -Wlong-long, -Wno-long-long options.

	* toplev.c (lang_options): Add -Wlong-long, -Wno-long-long
	options.
	* c-decl.c (warn_long_long): Define.
	(c_decode_option): Parse -Wlong-long, -Wno-long-long options.
	(grokdeclarator): Add flag `warn_long_long' as guard for
	warning "ANSI C does not support `long long'".
	* invoke.texi: Add description of options -Wlong-long,
	-Wno-long-long.
	* gcc.1: The same as above.
	* cp-tree.h (warn_long_long): Define.
	* decl.c (grokdeclarator): Add flag `warn_long_long' as guard for
	warning "ANSI C++ does not support `long long'".
	* decl2.c (warn_long_long): Define.
	(lang_decode_option): Parse -Wlong-long, -Wno-long-long options.

From-SVN: r21007

gcc/ChangeLog

+1998-07-08  Vladimir N. Makarov  <vmakarov@cygnus.com>
+
+	* toplev.c (lang_options): Add -Wlong-long, -Wno-long-long
+	options.
+	* c-decl.c (warn_long_long): Define.
+	(c_decode_option): Parse -Wlong-long, -Wno-long-long options.
+	(grokdeclarator): Add flag `warn_long_long' as guard for
+	warning "ANSI C does not support `long long'".
+	* invoke.texi: Add description of options -Wlong-long,
+	-Wno-long-long.
+	* gcc.1: The same as above.
+	
 Wed Jul  8 02:43:34 1998  Jeffrey A Law  (law@cygnus.com)
 
 	* rtlanal.c (reg_overlap_mentioned_p): Handle STRICT_LOW_PART.  If

gcc/c-decl.c

@@ -485,6 +485,10 @@ int flag_no_ident = 0;
 
 int warn_implicit_int;
 
+/* Nonzero means warn about usage of long long when `-pedantic'.  */
+
+int warn_long_long = 1;
+
 /* Nonzero means message about use of implicit function declarations;
  1 means warning; 2 means error. */
 
@@ -704,6 +708,10 @@ c_decode_option (argc, argv)
     }
   else if (!strcmp (p, "-Wno-implicit"))
     warn_implicit_int = 0, mesg_implicit_function_declaration = 0;
+  else if (!strcmp (p, "-Wlong-long"))
+    warn_long_long = 1;
+  else if (!strcmp (p, "-Wno-long-long"))
+    warn_long_long = 0;
   else if (!strcmp (p, "-Wwrite-strings"))
     warn_write_strings = 1;
   else if (!strcmp (p, "-Wno-write-strings"))
@@ -4406,7 +4414,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
 		      error ("`long long long' is too long for GCC");
 		    else
 		      {
-			if (pedantic && ! in_system_header)
+			if (pedantic && ! in_system_header && warn_long_long)
 			  pedwarn ("ANSI C does not support `long long'");
 			longlong = 1;
 		      }

gcc/cp/ChangeLog

+1998-07-08  Vladimir N. Makarov  <vmakarov@cygnus.com>
+
+	* cp-tree.h (warn_long_long): Define.
+	* decl.c (grokdeclarator): Add flag `warn_long_long' as guard for
+	warning "ANSI C++ does not support `long long'".
+	* decl2.c (warn_long_long): Define.
+	(lang_decode_option): Parse -Wlong-long, -Wno-long-long options.
+
 1998-07-07  Jason Merrill  <jason@yorick.cygnus.com>
 
 	* decl.c (xref_tag): Handle attributes between 'class' and name.

gcc/cp/cp-tree.h

@@ -329,6 +329,10 @@ extern int flag_no_ident;
 
 extern int warn_implicit;
 
+/* Nonzero means warn about usage of long long when `-pedantic'.  */
+
+extern int warn_long_long;
+
 /* Nonzero means warn when all ctors or dtors are private, and the class
    has no friends.  */
 

gcc/cp/decl.c

@@ -8436,7 +8436,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized, attrlist)
 		{
 		  if (i == (int) RID_LONG && RIDBIT_SETP (i, specbits))
 		    {
-		      if (pedantic && ! in_system_header)
+		      if (pedantic && ! in_system_header && warn_long_long)
 			pedwarn ("ANSI C++ does not support `long long'");
 		      if (longlong)
 			error ("`long long long' is too long for GCC");

gcc/cp/decl2.c

@@ -178,6 +178,10 @@ int flag_implicit_templates = 1;
 
 int warn_implicit = 1;
 
+/* Nonzero means warn about usage of long long when `-pedantic'.  */
+
+int warn_long_long = 1;
+
 /* Nonzero means warn when all ctors or dtors are private, and the class
    has no friends.  */
 
@@ -686,6 +690,8 @@ lang_decode_option (argc, argv)
 
       if (!strcmp (p, "implicit"))
 	warn_implicit = setting;
+      else if (!strcmp (p, "long-long"))
+	warn_long_long = setting;
       else if (!strcmp (p, "return-type"))
 	warn_return_type = setting;
       else if (!strcmp (p, "ctor-dtor-privacy"))

gcc/gcc.1

@@ -193,6 +193,7 @@ in the following sections.
 \-Wimplicit\-int
 \-Wimplicit\-function\-declaration
 \-Winline
+\-Wlong\-long
 \-Wmain
 \-Wmissing\-prototypes
 \-Wmissing\-declarations
@@ -2004,6 +2005,20 @@ Warn if an \c
 .B \-Wenum\-clash
 Warn about conversion between different enumeration types (C++ only).
 .TP
+.B \-Wlong-long
+Warn if
+.B long long \c
+type is used.  This is default.  To inhibit
+the warning messages, use flag `\|\c
+.B \-Wno\-long\-long\c
+\&\|'.  Flags `\|\c
+.B \-W\-long\-long\c
+\&\|' and `\|\c
+.B \-Wno\-long\-long\c
+\&\|' are taken into account only when flag `\|\c
+.B \-pedantic\c
+\&\|' is used.
+.TP
 .B \-Woverloaded\-virtual
 (C++ only.)
 In a derived class, the definitions of virtual functions must match

gcc/invoke.texi

@@ -121,7 +121,8 @@ in the following sections.
 -Wid-clash-@var{len}  -Wimplicit -Wimplicit-int 
 -Wimplicit-function-declaration  -Wimport
 -Werror-implicit-function-declaration  -Winline
--Wlarger-than-@var{len}  -Wmain  -Wmissing-declarations
+-Wlarger-than-@var{len}  -Wlong-long
+-Wmain  -Wmissing-declarations
 -Wmissing-prototypes  -Wmultichar  -Wnested-externs  -Wno-import  
 -Wold-style-cast  -Woverloaded-virtual  -Wparentheses
 -Wpointer-arith  -Wredundant-decls  -Wreorder  -Wreturn-type
@@ -1704,6 +1705,12 @@ main ()
 In this example, g++ will synthesize a default @samp{A& operator =
 (const A&);}, while cfront will use the user-defined @samp{operator =}.
 
+@item -Wlong-long
+Warn if @samp{long long} type is used.  This is default.  To inhibit
+the warning messages, use @samp{-Wno-long-long}.  Flags
+@samp{-Wlong-long} and @samp{-Wno-long-long} are taken into account
+only when @samp{-pedantic} flag is used.
+
 @item -Werror
 Make all warnings into errors.
 @end table

gcc/toplev.c

@@ -864,6 +864,8 @@ char *lang_options[] =
   "-Wno-implicit-int",
   "-Wimplicit",
   "-Wno-implicit",
+  "-Wlong-long",
+  "-Wno-long-long",
   "-Wmain",
   "-Wno-main",
   "-Wmissing-braces",