diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index e56eeaa73..7783786 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -2348,6 +2348,18 @@ an instance of a derived class through a pointer to a base class if the base class does not have a virtual destructor. This warning is enabled by @option{-Wall}. +@item -Wno-narrowing @r{(C++ and Objective-C++ only)} +@opindex Wnarrowing +@opindex Wno-narrowing +With -std=c++0x, suppress the diagnostic required by the standard for +narrowing conversions within @samp{@{ @}}, e.g. + +@smallexample +int i = @{ 2.2 @}; // error: narrowing from double to int +@end smallexample + +This flag can be useful for compiling valid C++98 code in C++0x mode. + @item -Wnoexcept @r{(C++ and Objective-C++ only)} @opindex Wnoexcept @opindex Wno-noexcept |