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| author | Joseph Myers <jsm28@cam.ac.uk> | 2000-07-17 04:19:33 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2000-07-17 04:19:33 -0600 |
| commit | 074e95e34275d72664f997ed949d9c91e37cd6ee (patch) | |
| tree | 77655b7666aa2047d635e02aeef88dbb4de0a583 /gcc | |
| parent | 01fbc97d6c432e9198d60be141ab51e50d056277 (diff) | |
| download | gcc-074e95e34275d72664f997ed949d9c91e37cd6ee.zip gcc-074e95e34275d72664f997ed949d9c91e37cd6ee.tar.gz gcc-074e95e34275d72664f997ed949d9c91e37cd6ee.tar.bz2 | |
invoke.texi (-pedantic): Refer to ISO C instead of ANSI C, and update to describe current practice.
* invoke.texi (-pedantic): Refer to ISO C instead of ANSI C, and
update to describe current practice.
From-SVN: r35092
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/invoke.texi | 19 |
2 files changed, 12 insertions, 10 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e460c9e..9633618 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -38,6 +38,9 @@ Mon Jul 17 02:37:06 2000 Marc Espie <espie@openbsd.org> 2000-07-17 Joseph S. Myers <jsm28@cam.ac.uk> + * invoke.texi (-pedantic): Refer to ISO C instead of ANSI C, and + update to describe current practice. + * glimits.h (LLONG_MIN, LLONG_MAX, ULLONG_MAX): Define for C99. * contrib.texi, cpp.texi, extend.texi, invoke.texi: Update diff --git a/gcc/invoke.texi b/gcc/invoke.texi index fc8b20d..9f7d55e 100644 --- a/gcc/invoke.texi +++ b/gcc/invoke.texi @@ -1447,10 +1447,12 @@ These options control the amount and kinds of warnings produced by GCC: Check the code for syntax errors, but don't do anything beyond that. @item -pedantic -Issue all the warnings demanded by strict ANSI C and ISO C++; -reject all programs that use forbidden extensions. +Issue all the warnings demanded by strict ISO C and ISO C++; +reject all programs that use forbidden extensions, and some other +programs that do not follow ISO C and ISO C++. For ISO C, follows the +version of the ISO C standard specified by any @samp{-std} option used. -Valid ANSI C and ISO C++ programs should compile properly with or without +Valid ISO C and ISO C++ programs should compile properly with or without this option (though a rare few will require @samp{-ansi}). However, without this option, certain GNU extensions and traditional C and C++ features are supported as well. With this option, they are rejected. @@ -1462,16 +1464,13 @@ warnings are also disabled in the expression that follows these escape routes; application programs should avoid them. @xref{Alternate Keywords}. -This option is not intended to be @i{useful}; it exists only to satisfy -pedants who would otherwise claim that GCC fails to support the ANSI -standard. - -Some users try to use @samp{-pedantic} to check programs for strict ANSI +Some users try to use @samp{-pedantic} to check programs for strict ISO C conformance. They soon find that it does not do quite what they want: it finds some non-ANSI practices, but not all---only those for which -ANSI C @emph{requires} a diagnostic. +ISO C @emph{requires} a diagnostic, and some others for which +diagnostics have been added. -A feature to report any failure to conform to ANSI C might be useful in +A feature to report any failure to conform to ISO C might be useful in some instances, but would require considerable additional work and would be quite different from @samp{-pedantic}. We don't have plans to support such a feature in the near future. |