diff options
Diffstat (limited to 'gcc/fortran/invoke.texi')
| -rw-r--r-- | gcc/fortran/invoke.texi | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/gcc/fortran/invoke.texi b/gcc/fortran/invoke.texi index 8138464..87afe78 100644 --- a/gcc/fortran/invoke.texi +++ b/gcc/fortran/invoke.texi @@ -1,4 +1,4 @@ -@c Copyright (C) 2004, 2005, 2006, 2007, 2008 +@c Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 @c Free Software Foundation, Inc. @c This is part of the GNU Fortran manual. @c For copying conditions, see the file gfortran.texi. @@ -166,6 +166,7 @@ and warnings}. @gccoptlist{-fno-automatic -ff2c -fno-underscoring @gol -fsecond-underscore @gol -fbounds-check -fcheck-array-temporaries -fmax-array-constructor =@var{n} @gol +-fcheck=@var{<all|bounds|array-temps>} -fmax-stack-var-size=@var{n} @gol -fpack-derived -frepack-arrays -fshort-enums -fexternal-blas @gol -fblas-matmul-limit=@var{n} -frecursive -finit-local-zero @gol @@ -1182,13 +1183,31 @@ is implemented as a reference to the link-time external symbol for compatibility with @command{g77} and @command{f2c}, and is implied by use of the @option{-ff2c} option. -@item -fbounds-check -@opindex @code{fbounds-check} +@item -fcheck=@var{<keyword>} +@opindex @code{fcheck} @cindex array, bounds checking @cindex bounds checking @cindex range checking @cindex subscript checking @cindex checking subscripts +@cindex run-time checking +@cindex checking array temporaries + +Enable the generation of run-time checks; the argument shall be +a comma-delimited list of the following keywords. + +@table @asis +@item @samp{all} +Enable all run-time test of @option{-fcheck}. + +@item @samp{array-temps} +Warns at run time when for passing an actual argument a temporary array +had to be generated. The information generated by this warning is +sometimes useful in optimization, in order to avoid such temporaries. + +Note: The warning is only printed once per location. + +@item @samp{bounds} Enable generation of run-time checks for array subscripts and against the declared minimum and maximum values. It also checks array indices for assumed and deferred @@ -1196,22 +1215,22 @@ shape arrays against the actual allocated bounds and ensures that all string lengths are equal for character array constructors without an explicit typespec. -Some checks require that @option{-fbounds-check} is set for +Some checks require that @option{-fcheck=bounds} is set for the compilation of the main program. Note: In the future this may also include other forms of checking, e.g., checking substring references. +@end table -@item fcheck-array-temporaries -@opindex @code{fcheck-array-temporaries} -@cindex checking array temporaries -Warns at run time when for passing an actual argument a temporary array -had to be generated. The information generated by this warning is -sometimes useful in optimization, in order to avoid such temporaries. - -Note: The warning is only printed once per location. +@item -fbounds-check +@opindex @code{fbounds-check} +@c Note: This option is also referred in gcc's manpage +Deprecated alias for @option{-fcheck=bounds}. +@item -fcheck-array-temporaries +@opindex @code{fcheck-array-temporaries} +Deprecated alias for @option{-fcheck=array-temps}. @item -fmax-array-constructor=@var{n} @opindex @code{fmax-array-constructor} |