Re: [Boost-users] Boost.Optional error should be a warning

Subject: Re: [Boost-users] Boost.Optional error should be a warning
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2019-01-14 20:08:17

AMDG

On 1/14/19 12:31 PM, Michael Powell via Boost-users wrote:
> I am using Boost.Optional, and, while I do want to "include it in an
> output", the library which I am doing so has another mechanism to do
> so.
> 

It doesn't matter that you have another way to handle
output.  If you get this message, it means that your
code is trying to call optional's stream operator,
for which you must #include optional_io.hpp.

> Translation, for Optional purposes, the following assertion should be
> a warning, IMO, and not an error:
> 
> BOOST_STATIC_ASSERT_MSG(sizeof(CharType) == 0, "If you want to output
> boost::optional, include header <boost/optional/optional_io.hpp>");
> 

In Christ,
Steven Watanabe