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invoke.texi: Add documentation for runtime behavior of -fno-range-check.

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2008-06-29  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	* invoke.texi: Add documentation for runtime behavior of
	-fno-range-check.

From-SVN: r137254
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Jerry DeLisle 2008-06-29 18:56:08 +00:00
parent a5a6b58639
commit 082b0571b5
2 changed files with 18 additions and 2 deletions
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5
gcc/fortran/ChangeLog
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@ -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

15
gcc/fortran/invoke.texi
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@ -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.