mirror of
https://github.com/matrix-construct/construct
synced 2024-11-30 02:32:43 +01:00
93 lines
4.8 KiB
C++
93 lines
4.8 KiB
C++
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk
|
|
//
|
|
// 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.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
// DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
|
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
// IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_UTIL_UNIT_LITERAL_H
|
|
|
|
//
|
|
// C++14 user defined literals
|
|
//
|
|
// These are very useful for dealing with space. Simply write 8_MiB and it's
|
|
// as if a macro turned that into (8 * 1024 * 1024) at compile time (it did).
|
|
//
|
|
|
|
/// (Internal) Defines a unit literal with an unsigned long long basis.
|
|
///
|
|
#define IRCD_UNIT_LITERAL_UL(name, morphism) \
|
|
constexpr auto \
|
|
operator"" _ ## name(const unsigned long long val) \
|
|
{ \
|
|
return (morphism); \
|
|
}
|
|
|
|
/// (Internal) Defines a unit literal with a signed long long basis
|
|
///
|
|
#define IRCD_UNIT_LITERAL_LL(name, morphism) \
|
|
constexpr auto \
|
|
operator"" _ ## name(const long long val) \
|
|
{ \
|
|
return (morphism); \
|
|
}
|
|
|
|
/// (Internal) Defines a unit literal with a long double basis
|
|
///
|
|
#define IRCD_UNIT_LITERAL_LD(name, morphism) \
|
|
constexpr auto \
|
|
operator"" _ ## name(const long double val) \
|
|
{ \
|
|
return (morphism); \
|
|
}
|
|
|
|
namespace ircd {
|
|
namespace util {
|
|
|
|
// IEC unit literals
|
|
IRCD_UNIT_LITERAL_UL( B, val )
|
|
IRCD_UNIT_LITERAL_UL( KiB, val * 1024LL )
|
|
IRCD_UNIT_LITERAL_UL( MiB, val * 1024LL * 1024LL )
|
|
IRCD_UNIT_LITERAL_UL( GiB, val * 1024LL * 1024LL * 1024LL )
|
|
IRCD_UNIT_LITERAL_UL( TiB, val * 1024LL * 1024LL * 1024LL * 1024LL )
|
|
IRCD_UNIT_LITERAL_UL( PiB, val * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL )
|
|
IRCD_UNIT_LITERAL_UL( EiB, val * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL )
|
|
|
|
IRCD_UNIT_LITERAL_LD( B, val )
|
|
IRCD_UNIT_LITERAL_LD( KiB, val * 1024.0L )
|
|
IRCD_UNIT_LITERAL_LD( MiB, val * 1024.0L * 1024.0L )
|
|
IRCD_UNIT_LITERAL_LD( GiB, val * 1024.0L * 1024.0L * 1024.0L )
|
|
IRCD_UNIT_LITERAL_LD( TiB, val * 1024.0L * 1024.0L * 1024.0L * 1024.0L )
|
|
IRCD_UNIT_LITERAL_LD( PiB, val * 1024.0L * 1024.0L * 1024.0L * 1024.0L * 1024.0L )
|
|
IRCD_UNIT_LITERAL_LD( EiB, val * 1024.0L * 1024.0L * 1024.0L * 1024.0L * 1024.0L * 1024.0L )
|
|
|
|
// SI unit literals
|
|
IRCD_UNIT_LITERAL_UL( KB, val * 1000LL )
|
|
IRCD_UNIT_LITERAL_UL( MB, val * 1000LL * 1000LL )
|
|
IRCD_UNIT_LITERAL_UL( GB, val * 1000LL * 1000LL * 1000LL )
|
|
IRCD_UNIT_LITERAL_UL( TB, val * 1000LL * 1000LL * 1000LL * 1000LL )
|
|
IRCD_UNIT_LITERAL_UL( PB, val * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL )
|
|
IRCD_UNIT_LITERAL_UL( EB, val * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL )
|
|
|
|
IRCD_UNIT_LITERAL_LD( KB, val * 1000.0L )
|
|
IRCD_UNIT_LITERAL_LD( MB, val * 1000.0L * 1000.0L )
|
|
IRCD_UNIT_LITERAL_LD( GB, val * 1000.0L * 1000.0L * 1000.0L )
|
|
IRCD_UNIT_LITERAL_LD( TB, val * 1000.0L * 1000.0L * 1000.0L * 1000.0L )
|
|
IRCD_UNIT_LITERAL_LD( PB, val * 1000.0L * 1000.0L * 1000.0L * 1000.0L * 1000.0L )
|
|
IRCD_UNIT_LITERAL_LD( EB, val * 1000.0L * 1000.0L * 1000.0L * 1000.0L * 1000.0L * 1000.0L )
|
|
|
|
} // namespace util
|
|
} // namespace ircd
|