From 082b0571b5243222c59703a96c2c4cb6e438bad8 Mon Sep 17 00:00:00 2001
From: Jerry DeLisle <jvdelisle@gcc.gnu.org>
Date: Sun, 29 Jun 2008 18:56:08 +0000
Subject: [PATCH] invoke.texi: Add documentation for runtime behavior of
-fno-range-check.
2008-06-29 Jerry DeLisle <jvdelisle@gcc.gnu.org>
* invoke.texi: Add documentation for runtime behavior of
-fno-range-check.
From-SVN: r137254
---
gcc/fortran/ChangeLog | 5 +++++
gcc/fortran/invoke.texi | 15 +++++++++++++--
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index c9d2d9a49b04..f29b380c40bf 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,8 @@
+2008-06-29 Jerry DeLisle <jvdelisle@gcc.gnu.org>
+
+ * invoke.texi: Add documentation for runtime behavior of
+ -fno-range-check.
+
2008-06-28 Daniel Kraft <d@domob.eu>
* gfc-internals.texi (section gfc_code): Extended documentation about
diff --git a/gcc/fortran/invoke.texi b/gcc/fortran/invoke.texi
index 0879f52d7df2..445b4a7d1a98 100644
--- a/gcc/fortran/invoke.texi
+++ b/gcc/fortran/invoke.texi
@@ -156,8 +156,9 @@ and warnings}.
@item Runtime Options
@xref{Runtime Options,,Options for influencing runtime behavior}.
-@gccoptlist{-fconvert=@var{conversion} -frecord-marker=@var{length} @gol
--fmax-subrecord-length=@var{length} -fsign-zero}
+@gccoptlist{-fconvert=@var{conversion} -fno-range-check
+-frecord-marker=@var{length} @gol -fmax-subrecord-length=@var{length}
+-fsign-zero}
@item Code Generation Options
@xref{Code Gen Options,,Options for code generation conventions}.
@@ -938,6 +939,16 @@ representation for unformatted files.
The @code{CONVERT} specifier and the GFORTRAN_CONVERT_UNIT environment
variable override the default specified by @option{-fconvert}.}
+
+@item -fno-range-check
+@opindex @code{-fno-range-check}
+Disable range checking of input values during integer @code{READ} operations.
+For example, GNU Fortran will give an error if an input value is
+outside of the relevant range of [@code{-HUGE()}:@code{HUGE()}]. In other words,
+with @code{INTEGER (kind=4) :: i} , attempting to read @math{-2147483648} will
+give an error unless @option{-fno-range-check} is given.
+
+
@item -frecord-marker=@var{length}
@opindex @code{frecord-marker=}@var{length}
Specify the length of record markers for unformatted files.