* COPYING: Update to current

[pf3gnuchains/gcc-fork.git] / gcc / f / g77.texi

diff --git a/gcc/f/g77.texi b/gcc/f/g77.texi
index 052d1ff..a94f06a 100644 (file)
--- a/gcc/f/g77.texi
+++ b/gcc/f/g77.texi
@@ -2,8 +2,8 @@
 @c %**start of header
 @setfilename g77.info
 
-@set last-update 1999-06-06
-@set copyrights-g77 1995-1999
+@set last-update 2000-11-27
+@set copyrights-g77 1995,1996,1997,1998,1999,2000
 
 @include root.texi
 
@@ -608,7 +608,7 @@ the ``copyright'' line and a pointer to where the full notice is found.
 
 @smallexample
 @var{one line to give the program's name and a brief idea of what it does.}
-Copyright (C) 19@var{yy}  @var{name of author}
+Copyright (C) @var{year}  @var{name of author}
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -631,7 +631,7 @@ If the program is interactive, make it output a short notice like this
 when it starts in an interactive mode:
 
 @smallexample
-Gnomovision version 69, Copyright (C) 19@var{yy} @var{name of author}
+Gnomovision version 69, Copyright (C) @var{year} @var{name of author}
 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details
 type `show w'.
 This is free software, and you are welcome to redistribute it
@@ -1654,8 +1654,8 @@ and when the resulting commands compile Fortran source files.
 @cindex options, -fset-g77-defaults
 @item -fset-g77-defaults
 @emph{Version info:}
-This option is obsolete in @code{egcs}
-as of version 1.1.
+This option was obsolete as of @code{egcs}
+version 1.1.
 The effect is instead achieved
 by the @code{lang_init_options} routine
 in @file{gcc/gcc/f/com.c}.
@@ -10475,10 +10475,14 @@ mode and not take the performance hit of @samp{-ffloat-store}.  On x86
 and m68k GNU systems you can do this with a technique similar to that
 for turning on floating-point exceptions
 (@pxref{Floating-point Exception Handling}).
-The control word could be set to double precision by
-replacing the @code{__setfpucw} call with one like this:
+The control word could be set to double precision by some code like this
+one:
 @smallexample
-  __setfpucw ((_FPU_DEFAULT & ~_FPU_EXTENDED) | _FPU_DOUBLE);
+#include <fpu_control.h>
+@{
+  fpu_control_t cw = (_FPU_DEFAULT & ~_FPU_EXTENDED) | _FPU_DOUBLE;
+  _FPU_SETCW(cw);
+@}
 @end smallexample
 (It is not clear whether this has any effect on the operation of the GNU
 maths library, but we have no evidence of it causing trouble.)
@@ -12147,15 +12151,17 @@ Most systems provide some C-callable mechanism to change this; this can
 be invoked at startup using @code{gcc}'s @code{constructor} attribute.
 For example, just compiling and linking the following C code with your
 program will turn on exception trapping for the ``common'' exceptions
-on an x86-based GNU system:
+on a GNU system using glibc 2.2 or newer:
 
 @smallexample
-#include <fpu_control.h>
+#define _GNU_SOURCE 1
+#include <fenv.h>
 static void __attribute__ ((constructor))
 trapfpe ()
 @{
-  __setfpucw (_FPU_DEFAULT &
-              ~(_FPU_MASK_IM | _FPU_MASK_ZM | _FPU_MASK_OM));
+  /* Enable some exceptions.  At startup all exceptions are masked.  */
+  
+  feenableexcept (FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW);
 @}
 @end smallexample