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Add error_code::category_name helper, use it in to_string

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This commit is contained in:
Peter Dimov
2022-02-03 04:36:58 +02:00
parent 4b1caad727
commit 2e2430c4fa
1 changed files with 23 additions and 1 deletions
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24
include/boost/system/detail/error_code.hpp
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@ -83,6 +83,28 @@ private:
// >3: pointer to source_location, failed_ in lsb
boost::uintptr_t lc_flags_;
private:
char const* category_name() const BOOST_NOEXCEPT
{
// return category().name();
if( lc_flags_ == 0 )
{
// must match detail::system_error_category::name()
return "system";
}
else if( lc_flags_ == 1 )
{
// must match detail::interop_error_category::name()
return "std:unknown";
}
else
{
return d1_.cat_->name();
}
}
public:
// constructors:
@ -598,7 +620,7 @@ public:
else
#endif
{
std::string r = category().name();
std::string r = category_name();
detail::append_int( r, value() );
return r;
}