re PR libfortran/25425 ([4.1 only] F95 and F2003 differ on list-directed output for 0.0)

	PR libfortran/25425

	* trans-decl.c (gfc_generate_function_code): Add new argument,
	pedantic, to set_std call.

	* libgfortran.h: Add pedantic field to compile_options struct.
	* io/write.c (calculate_G_format): Depending on the standard,
	choose E or F format for list-directed output of 0.0.
	* runtime/error.c (notify_std): Make warning and error dependent
	on pedanticity.
	* runtime/compile_options.c (set_std): Use new pedantic argument.

From-SVN: r110769

7 files changed, 39 insertions, 11 deletions

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 66f638f..83dd30c 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2006-02-08  Francois-Xavier Coudert  <coudert@clipper.ens.fr>
+
+	PR libfortran/25425
+	* trans-decl.c (gfc_generate_function_code): Add new argument,
+	pedantic, to set_std call.
+
 2005-02-06  Thomas Koenig  <Thomas.Koenig@online.de>
 
 	PR libfortran/23815
diff --git a/gcc/fortran/trans-decl.c b/gcc/fortran/trans-decl.c
index 4811b7a..d1892b7 100644
--- a/gcc/fortran/trans-decl.c
+++ b/gcc/fortran/trans-decl.c
@@ -2226,7 +2226,8 @@ gfc_build_builtin_function_decls (void)
   gfor_fndecl_set_std =
     gfc_build_library_function_decl (get_identifier (PREFIX("set_std")),
 				    void_type_node,
-				    2,
+				    3,
+				    gfc_int4_type_node,
 				    gfc_int4_type_node,
 				    gfc_int4_type_node);
 
@@ -2817,10 +2818,10 @@ gfc_generate_function_code (gfc_namespace * ns)
   /* Now generate the code for the body of this function.  */
   gfc_init_block (&body);
 
-  /* If this is the main program and we compile with -pedantic, add a call
-     to set_std to set up the runtime library Fortran language standard
-     parameters.  */
-  if (sym->attr.is_main_program && pedantic)
+  /* If this is the main program, add a call to set_std to set up the
+     runtime library Fortran language standard parameters.  */
+
+  if (sym->attr.is_main_program)
     {
       tree arglist, gfc_int4_type_node;
 
@@ -2831,6 +2832,9 @@ gfc_generate_function_code (gfc_namespace * ns)
       arglist = gfc_chainon_list (arglist,
 				  build_int_cst (gfc_int4_type_node,
 						 gfc_option.allow_std));
+      arglist = gfc_chainon_list (arglist,
+				  build_int_cst (gfc_int4_type_node,
+						 pedantic));
       tmp = build_function_call_expr (gfor_fndecl_set_std, arglist);
       gfc_add_expr_to_block (&body, tmp);
     }
diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index 8517787..a8e881d 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,13 @@
+2006-02-08  Francois-Xavier Coudert  <coudert@clipper.ens.fr>
+
+	PR libfortran/25425
+	* libgfortran.h: Add pedantic field to compile_options struct.
+	* io/write.c (calculate_G_format): Depending on the standard,
+	choose E or F format for list-directed output of 0.0.
+	* runtime/error.c (notify_std): Make warning and error dependent
+	on pedanticity.
+	* runtime/compile_options.c (set_std): Use new pedantic argument.
+
 2006-02-07  Dale Ranta  <dir@lanl.gov>
 
 	PR fortran/25577
@@ -6,8 +16,8 @@
 2006-02-07  Rainer Emrich <r.emrich@de.tecosim.com>
 
 	* intrinsics/c99_functions.c: Work around incompatible
-        declarations of cabs{,f,l} on pre-C99 IRIX systems.
-                
+	declarations of cabs{,f,l} on pre-C99 IRIX systems.
+
 2005-02-06  Thomas Koenig  <Thomas.Koenig@online.de>
 
 	PR libfortran/23815
diff --git a/libgfortran/io/write.c b/libgfortran/io/write.c
index d7ce6c5..edd2933 100644
--- a/libgfortran/io/write.c
+++ b/libgfortran/io/write.c
@@ -302,7 +302,8 @@ calculate_G_format (st_parameter_dt *dtp, const fnode *f,
   /* In case of the two data magnitude ranges,
      generate E editing, Ew.d[Ee].  */
   exp_d = calculate_exp (d);
-  if ((m > 0.0 && m < 0.1 - 0.05 / exp_d) || (m >= exp_d - 0.5 ))
+  if ((m > 0.0 && m < 0.1 - 0.05 / exp_d) || (m >= exp_d - 0.5 ) ||
+      ((m == 0.0) && !(compile_options.allow_std & GFC_STD_F2003)))
     {
       newf->format = FMT_E;
       newf->u.real.w = w;
diff --git a/libgfortran/libgfortran.h b/libgfortran/libgfortran.h
index fac9b4a..f1a1a3e 100644
--- a/libgfortran/libgfortran.h
+++ b/libgfortran/libgfortran.h
@@ -336,6 +336,7 @@ typedef struct
 {
   int warn_std;
   int allow_std;
+  int pedantic;
   int convert;
 }
 compile_options_t;
diff --git a/libgfortran/runtime/compile_options.c b/libgfortran/runtime/compile_options.c
index e2a2ffa..ce5e52a 100644
--- a/libgfortran/runtime/compile_options.c
+++ b/libgfortran/runtime/compile_options.c
@@ -37,13 +37,15 @@ compile_options_t compile_options;
 
 
 /* Prototypes */
-extern void set_std (GFC_INTEGER_4, GFC_INTEGER_4);
+extern void set_std (GFC_INTEGER_4, GFC_INTEGER_4, GFC_INTEGER_4);
 export_proto(set_std);
 
 
 void
-set_std (GFC_INTEGER_4 warn_std, GFC_INTEGER_4 allow_std)
+set_std (GFC_INTEGER_4 warn_std, GFC_INTEGER_4 allow_std,
+	 GFC_INTEGER_4 pedantic)
 {
+  compile_options.pedantic = pedantic;
   compile_options.warn_std = warn_std;
   compile_options.allow_std = allow_std;
 }
@@ -58,6 +60,7 @@ init_compile_options (void)
     | GFC_STD_F2003 | GFC_STD_LEGACY;
   compile_options.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
     | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F77 | GFC_STD_GNU | GFC_STD_LEGACY;
+  compile_options.pedantic = 0;
 }
 
 /* Function called by the front-end to tell us the
diff --git a/libgfortran/runtime/error.c b/libgfortran/runtime/error.c
index 2d3c068..b25cd0c 100644
--- a/libgfortran/runtime/error.c
+++ b/libgfortran/runtime/error.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
    Contributed by Andy Vaught
 
 This file is part of the GNU Fortran 95 runtime library (libgfortran).
@@ -508,6 +508,9 @@ notify_std (int std, const char * message)
 {
   int warning;
 
+  if (!compile_options.pedantic)
+    return SUCCESS;
+
   warning = compile_options.warn_std & std;
   if ((compile_options.allow_std & std) != 0 && !warning)
     return SUCCESS;