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| author | Gabriel Dos Reis <gdr@integrable-solutions.net> | 2005-06-09 22:21:48 +0000 |
|---|---|---|
| committer | Gabriel Dos Reis <gdr@gcc.gnu.org> | 2005-06-09 22:21:48 +0000 |
| commit | b7e20b53f60d973debcd771c882cc44b13db38b1 (patch) | |
| tree | 5ba1ed694692d32697b04063c0e9fb9c31bfdbd2 /gcc/doc | |
| parent | 92f5e87c2ba9b5f83b8b465a43e43d41a2801265 (diff) | |
| download | gcc-b7e20b53f60d973debcd771c882cc44b13db38b1.zip gcc-b7e20b53f60d973debcd771c882cc44b13db38b1.tar.gz gcc-b7e20b53f60d973debcd771c882cc44b13db38b1.tar.bz2 | |
re PR c/21759 (Implement warning for codes at the intersection of C and C++)
PR c/21759
* c.opt (Wc++-compat): New.
* doc/invoke.texi (-Wc++-compat): Document.
* c-typeck.c (convert_for_assignment): Check for implicit
conversion void* -> T*.
testsuite/
* gcc.dg/Wcxx-compat-1.c: New.
From-SVN: r100806
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index eef9a0f..95846f1 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -219,7 +219,7 @@ Objective-C and Objective-C++ Dialects}. @xref{Warning Options,,Options to Request or Suppress Warnings}. @gccoptlist{-fsyntax-only -pedantic -pedantic-errors @gol -w -Wextra -Wall -Waggregate-return -Wno-attributes @gol --Wcast-align -Wcast-qual -Wchar-subscripts -Wcomment @gol +-Wc++-compat -Wcast-align -Wcast-qual -Wchar-subscripts -Wcomment @gol -Wconversion -Wno-deprecated-declarations @gol -Wdisabled-optimization -Wno-div-by-zero -Wno-endif-labels @gol -Werror -Werror-implicit-function-declaration @gol @@ -2993,6 +2993,11 @@ to functions. Warn whenever a function call is cast to a non-matching type. For example, warn if @code{int malloc()} is cast to @code{anything *}. +@item -Wc++-compat +Warn about ISO C constructs that are outside of the common subset of +ISO C and ISO C++, e.g.@: request for implicit conversion from +@code{void *} to a pointer to non-@code{void} type. + @item -Wcast-qual @opindex Wcast-qual Warn whenever a pointer is cast so as to remove a type qualifier from |