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Patch for -pedantic -std=gnu* documentation
- To: <gcc-patches at gcc dot gnu dot org>
- Subject: Patch for -pedantic -std=gnu* documentation
- From: "Joseph S. Myers" <jsm28 at cam dot ac dot uk>
- Date: Sun, 20 May 2001 13:51:30 +0100 (BST)
This patch documents what -pedantic does with -std=gnu*, since this
has confused some people. It passes "make info". Applied to mainline
and branch.
2001-05-20 Joseph S. Myers <jsm28@cam.ac.uk>
* invoke.texi: Document meaning of -pedantic when -std=gnu* is
used. Fixes PR c/2291.
* gcc.1: Regenerate.
--- invoke.texi.orig Mon May 7 16:09:18 2001
+++ invoke.texi Sun May 20 12:38:41 2001
@@ -1677,6 +1677,16 @@
be quite different from @samp{-pedantic}. We don't have plans to
support such a feature in the near future.
+Where the standard specified with @option{-std} represents a GNU
+extended dialect of C, such as @samp{gnu89} or @samp{gnu99}, there is a
+corresponding @dfn{base standard}, the version of ISO C on which the GNU
+extended dialect is based. Warnings from @option{-pedantic} are given
+where they are required by the base standard. (It would not make sense
+for such warnings to be given only for features not in the specified GNU
+C dialect, since by definition the GNU dialects of C include all
+features the compiler supports with the given option, and there would be
+nothing to warn about.)
+
@item -pedantic-errors
Like @samp{-pedantic}, except that errors are produced rather than
warnings.
--
Joseph S. Myers
jsm28@cam.ac.uk