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https://github.com/matrix-construct/construct
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ircd::util: Move these macros up the file out of obscurity.
This commit is contained in:
Jason Volk
parent
b207b9e909
commit
9acdb31349
1 changed files with 82 additions and 68 deletions
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@ -69,6 +69,21 @@ struct NAME \
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#define IRCD_STRONG_T(TYPE) \
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IRCD_STRONG_TYPEDEF(TYPE, IRCD_UNIQUE(strong_t))
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/* Output the sizeof a structure at compile time.
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* This stops the compiler with an error (good) containing the size of the target
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* in the message.
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*
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* example: struct foo {}; IRCD_TEST_SIZEOF(foo)
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*/
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template<size_t SIZE>
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struct _TEST_SIZEOF_;
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#define IRCD_TEST_SIZEOF(name) \
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ircd::util::_TEST_SIZEOF_<sizeof(name)> _test_;
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// for complex static initialization (try to avoid this though)
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enum class init_priority
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{
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@ -80,6 +95,73 @@ enum class init_priority
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__attribute__((init_priority(int(ircd::init_priority::name))))
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///
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/// C++14 user defined literals
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///
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/// These are very useful for dealing with space. Simply write 8_MiB and it's
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/// as if a macro turned that into (8 * 1024 * 1024) at compile time.
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///
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/// (Internal) Defines a unit literal with an unsigned long long basis.
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///
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#define IRCD_UNIT_LITERAL_UL(name, morphism) \
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constexpr auto \
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operator"" _ ## name(const unsigned long long val) \
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{ \
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return (morphism); \
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}
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/// (Internal) Defines a unit literal with a signed long long basis
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///
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#define IRCD_UNIT_LITERAL_LL(name, morphism) \
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constexpr auto \
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operator"" _ ## name(const long long val) \
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{ \
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return (morphism); \
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}
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/// (Internal) Defines a unit literal with a long double basis
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///
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#define IRCD_UNIT_LITERAL_LD(name, morphism) \
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constexpr auto \
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operator"" _ ## name(const long double val) \
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{ \
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return (morphism); \
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}
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// IEC unit literals
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IRCD_UNIT_LITERAL_UL( B, val )
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IRCD_UNIT_LITERAL_UL( KiB, val * 1024LL )
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IRCD_UNIT_LITERAL_UL( MiB, val * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_UL( GiB, val * 1024LL * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_UL( TiB, val * 1024LL * 1024LL * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_UL( PiB, val * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_UL( EiB, val * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_LD( B, val )
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IRCD_UNIT_LITERAL_LD( KiB, val * 1024.0L )
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IRCD_UNIT_LITERAL_LD( MiB, val * 1024.0L * 1024.0L )
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IRCD_UNIT_LITERAL_LD( GiB, val * 1024.0L * 1024.0L * 1024.0L )
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IRCD_UNIT_LITERAL_LD( TiB, val * 1024.0L * 1024.0L * 1024.0L * 1024.0L )
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IRCD_UNIT_LITERAL_LD( PiB, val * 1024.0L * 1024.0L * 1024.0L * 1024.0L * 1024.0L )
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IRCD_UNIT_LITERAL_LD( EiB, val * 1024.0L * 1024.0L * 1024.0L * 1024.0L * 1024.0L * 1024.0L )
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// SI unit literals
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IRCD_UNIT_LITERAL_UL( KB, val * 1000LL )
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IRCD_UNIT_LITERAL_UL( MB, val * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_UL( GB, val * 1000LL * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_UL( TB, val * 1000LL * 1000LL * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_UL( PB, val * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_UL( EB, val * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_LD( KB, val * 1000.0L )
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IRCD_UNIT_LITERAL_LD( MB, val * 1000.0L * 1000.0L )
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IRCD_UNIT_LITERAL_LD( GB, val * 1000.0L * 1000.0L * 1000.0L )
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IRCD_UNIT_LITERAL_LD( TB, val * 1000.0L * 1000.0L * 1000.0L * 1000.0L )
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IRCD_UNIT_LITERAL_LD( PB, val * 1000.0L * 1000.0L * 1000.0L * 1000.0L * 1000.0L )
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IRCD_UNIT_LITERAL_LD( EB, val * 1000.0L * 1000.0L * 1000.0L * 1000.0L * 1000.0L * 1000.0L )
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///
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/// Fundamental scope-unwind utilities establishing actions during destruction
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///
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@ -635,74 +717,6 @@ string(const uint8_t *const &buf, const size_t &size)
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}
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/***
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* C++14 user defined literals
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*
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* These are very useful for dealing with space. Simply write 8_MiB and it's
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* as if a macro turned that into (8 * 1024 * 1024) at compile time.
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*/
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#define IRCD_UNIT_LITERAL_LL(name, morphism) \
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constexpr auto \
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operator"" _ ## name(const unsigned long long val) \
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{ \
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return (morphism); \
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}
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#define IRCD_UNIT_LITERAL_LD(name, morphism) \
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constexpr auto \
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operator"" _ ## name(const long double val) \
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{ \
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return (morphism); \
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}
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// IEC unit literals
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IRCD_UNIT_LITERAL_LL( B, val )
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IRCD_UNIT_LITERAL_LL( KiB, val * 1024LL )
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IRCD_UNIT_LITERAL_LL( MiB, val * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_LL( GiB, val * 1024LL * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_LL( TiB, val * 1024LL * 1024LL * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_LL( PiB, val * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_LL( EiB, val * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL )
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IRCD_UNIT_LITERAL_LD( B, val )
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IRCD_UNIT_LITERAL_LD( KiB, val * 1024.0L )
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IRCD_UNIT_LITERAL_LD( MiB, val * 1024.0L * 1024.0L )
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IRCD_UNIT_LITERAL_LD( GiB, val * 1024.0L * 1024.0L * 1024.0L )
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IRCD_UNIT_LITERAL_LD( TiB, val * 1024.0L * 1024.0L * 1024.0L * 1024.0L )
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IRCD_UNIT_LITERAL_LD( PiB, val * 1024.0L * 1024.0L * 1024.0L * 1024.0L * 1024.0L )
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IRCD_UNIT_LITERAL_LD( EiB, val * 1024.0L * 1024.0L * 1024.0L * 1024.0L * 1024.0L * 1024.0L )
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// SI unit literals
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IRCD_UNIT_LITERAL_LL( KB, val * 1000LL )
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IRCD_UNIT_LITERAL_LL( MB, val * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_LL( GB, val * 1000LL * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_LL( TB, val * 1000LL * 1000LL * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_LL( PB, val * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_LL( EB, val * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL )
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IRCD_UNIT_LITERAL_LD( KB, val * 1000.0L )
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IRCD_UNIT_LITERAL_LD( MB, val * 1000.0L * 1000.0L )
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IRCD_UNIT_LITERAL_LD( GB, val * 1000.0L * 1000.0L * 1000.0L )
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IRCD_UNIT_LITERAL_LD( TB, val * 1000.0L * 1000.0L * 1000.0L * 1000.0L )
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IRCD_UNIT_LITERAL_LD( PB, val * 1000.0L * 1000.0L * 1000.0L * 1000.0L * 1000.0L )
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IRCD_UNIT_LITERAL_LD( EB, val * 1000.0L * 1000.0L * 1000.0L * 1000.0L * 1000.0L * 1000.0L )
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/* Output the sizeof a structure at compile time.
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* This stops the compiler with an error (good) containing the size of the target
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* in the message.
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*
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* example: struct foo {}; IRCD_TEST_SIZEOF(foo)
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*/
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template<size_t SIZE>
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struct _TEST_SIZEOF_;
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#define IRCD_TEST_SIZEOF(name) \
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ircd::util::_TEST_SIZEOF_<sizeof(name)> _test_;
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/* This is a template alternative to nothrow overloads, which
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* allows keeping the function arguments sanitized of the thrownness.
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*/
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