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https://github.com/Ed94/gencpp.git
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105 lines
3.3 KiB
C++
105 lines
3.3 KiB
C++
#pragma region Macros
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#define zpl_cast( Type ) ( Type )
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// Keywords
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#define global static // Global variables
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#define internal static // Internal linkage
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#define local_persist static // Local Persisting variables
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// Bits
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#define bit( Value ) ( 1 << Value )
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#define bitfield_is_equal( Type, Field, Mask ) ( (Type(Mask) & Type(Field)) == Type(Mask) )
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// Casting
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#define ccast( Type, Value ) ( * const_cast< Type* >( & (Value) ) )
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#define pcast( Type, Value ) ( * reinterpret_cast< Type* >( & ( Value ) ) )
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#define rcast( Type, Value ) reinterpret_cast< Type >( Value )
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#define scast( Type, Value ) static_cast< Type >( Value )
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// Num Arguments (Varadics)
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#if defined(__GNUC__) || defined(__clang__)
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// Supports 0-10 arguments
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#define num_args_impl( _0, \
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_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, \
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_11, _12, _13, _14, _15, _16, _17, _18, _19, _20, \
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N, ... \
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) N
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// _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, \
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// _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, \
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// _41, _42, _43, _44, _45, _46, _47, _48, _49, _50,
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// ## deletes preceding comma if _VA_ARGS__ is empty (GCC, Clang)
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#define num_args(...) \
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num_args_impl(_, ## __VA_ARGS__, \
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20, 19, 18, 17, 16, 15, 14, 13, 12, 11, \
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10, 9, 8, 7, 6, 5, 4, 3, 2, 1, \
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0 \
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)
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// 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, \
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// 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, \
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// 30, 29, 28, 27, 26, 25, 24, 23, 22, 21,
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#else
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// Supports 1-10 arguments
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#define num_args_impl( \
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_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, \
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_11, _12, _13, _14, _15, _16, _17, _18, _19, _20, \
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N, ... \
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) N
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#define num_args(...) \
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num_args_impl( __VA_ARGS__, \
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20, 19, 18, 17, 16, 15, 14, 13, 12, 11, \
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10, 9, 8, 7, 6, 5, 4, 3, 2, 1 \
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)
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#endif
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// Stringizing
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#define stringize_va( ... ) #__VA_ARGS__
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#define stringize( ... ) stringize_va( __VA_ARGS__ )
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// Function do once
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#define do_once() \
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do \
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{ \
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static \
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bool Done = false; \
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if ( Done ) \
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return; \
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Done = true; \
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} \
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while(0)
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#define do_once_start \
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do \
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{ \
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static \
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bool Done = false; \
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if ( Done ) \
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break; \
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Done = true;
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#define do_once_end \
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} \
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while(0);
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#define clamp( x, lower, upper ) min( max( ( x ), ( lower ) ), ( upper ) )
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#define count_of( x ) ( ( size_of( x ) / size_of( 0 [ x ] ) ) / ( ( sw )( ! ( size_of( x ) % size_of( 0 [ x ] ) ) ) ) )
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#define is_between( x, lower, upper ) ( ( ( lower ) <= ( x ) ) && ( ( x ) <= ( upper ) ) )
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#define max( a, b ) ( ( a ) > ( b ) ? ( a ) : ( b ) )
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#define min( a, b ) ( ( a ) < ( b ) ? ( a ) : ( b ) )
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#define size_of( x ) ( sw )( sizeof( x ) )
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template< class Type >
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void swap( Type& a, Type& b )
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{
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Type tmp = a;
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a = b;
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b = tmp;
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}
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#pragma endregion Macros
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