diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 62c70d5..9580c10 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -2238,6 +2238,16 @@ return value even without this option. In all other cases, when exhaustion is signalled by throwing @code{std::bad_alloc}. See also @samp{new (nothrow)}. +@item -fconcepts +@opindex fconcepts +Enable support for the C++ Extensions for Concepts Technical +Specification, ISO 19217 (2015), which allows code like + +@smallexample +template <class T> concept bool Addable = requires (T t) @{ t + t; @}; +template <Addable T> T add (T a, T b) @{ return a + b; @} +@end smallexample + @item -fconstexpr-depth=@var{n} @opindex fconstexpr-depth Set the maximum nested evaluation depth for C++11 constexpr functions |