mirror of
https://github.com/matrix-construct/construct
synced 2024-11-25 16:22:35 +01:00
80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
// The Construct
|
|
//
|
|
// Copyright (C) The Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#ifndef __GNUC__
|
|
#pragma STDC FENV_ACCESS on
|
|
#endif
|
|
|
|
void
|
|
ircd::fpe::_throw_errors(const ushort &flags)
|
|
{
|
|
assert(flags);
|
|
thread_local char buf[128];
|
|
throw std::domain_error
|
|
{
|
|
reflect(buf, flags)
|
|
};
|
|
}
|
|
|
|
ircd::string_view
|
|
ircd::fpe::reflect(const mutable_buffer &buf,
|
|
const ushort &flags)
|
|
{
|
|
window_buffer wb{buf};
|
|
const auto append{[&wb](const auto &flag)
|
|
{
|
|
wb([&flag](const mutable_buffer &buf)
|
|
{
|
|
return strlcpy(buf, reflect(flag));
|
|
});
|
|
}};
|
|
|
|
for(size_t i(0); i < sizeof(flags) * 8; ++i)
|
|
if(flags & (1 << i))
|
|
append(1 << i);
|
|
|
|
return wb.completed();
|
|
}
|
|
|
|
ircd::string_view
|
|
ircd::fpe::reflect(const ushort &flag)
|
|
{
|
|
switch(flag)
|
|
{
|
|
case 0: return "";
|
|
case FE_INVALID: return "INVALID";
|
|
case FE_DIVBYZERO: return "DIVBYZERO";
|
|
case FE_UNDERFLOW: return "UNDERFLOW";
|
|
case FE_OVERFLOW: return "OVERFLOW";
|
|
case FE_INEXACT: return "INEXACT";
|
|
}
|
|
|
|
return "?????";
|
|
}
|
|
|
|
ircd::string_view
|
|
ircd::fpe::reflect_sicode(const int &code)
|
|
{
|
|
switch(code)
|
|
{
|
|
#if defined(HAVE_SIGNAL_H) && defined(FPE_INTDIV)
|
|
case FPE_INTDIV: return "INTDIV";
|
|
case FPE_INTOVF: return "INTOVF";
|
|
case FPE_FLTDIV: return "FLTDIV";
|
|
case FPE_FLTOVF: return "FLTOVF";
|
|
case FPE_FLTUND: return "FLTUND";
|
|
case FPE_FLTRES: return "FLTRES";
|
|
case FPE_FLTINV: return "FLTINV";
|
|
case FPE_FLTSUB: return "FLTSUB";
|
|
#endif // HAVE_SIGNAL_H
|
|
}
|
|
|
|
return "?????";
|
|
}
|