boostorg/preprocessor
1
0
Fork 1
mirror of https://github.com/boostorg/preprocessor.git synced 2025-07-12 20:16:36 +02:00
Code Issues Packages Projects Releases Wiki Activity

Refinements

Browse Source 
[SVN r12543]
This commit is contained in:
Vesa Karvonen
2002-01-29 09:20:56 +00:00
parent 318494b610
commit 9fd20dc4e2
1 changed files with 89 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

139
example/array_arithmetic.c
View File

@ -20,6 +20,7 @@
#include <libs/preprocessor/example/array_arithmetic_helpers.hpp>
#include <boost/preprocessor/list/at.hpp>
#include <boost/preprocessor/list/append.hpp>
#include <boost/preprocessor/tuple/to_list.hpp>
#include <boost/preprocessor/tuple/eat.hpp>
#include <boost/preprocessor/comparison/less.hpp>
@ -31,35 +32,9 @@
#include <boost/preprocessor/arithmetic/add.hpp>
#include <stddef.h>
/*sym , name ,bin,flt,log,sh?,com*/
#define UNARY_OPS\
(( ! , logical_not , 0 , 1 , 1 , 0 , 0 ),\
(( ~ , bitwise_not , 0 , 0 , 0 , 0 , 0 ),\
(( - , neg , 0 , 1 , 0 , 0 , 0 ),\
(_,_,0),1),1),1)
/*sym , name ,bin,flt,log,sh?,com*/
#define BINARY_OPS\
(( * , mul , 1 , 1 , 0 , 0 , 1 ),\
(( / , div , 1 , 1 , 0 , 0 , 0 ),\
(( % , mod , 1 , 0 , 0 , 0 , 0 ),\
(( + , add , 1 , 1 , 0 , 0 , 1 ),\
(( - , sub , 1 , 1 , 0 , 0 , 0 ),\
(( << , shift_left , 1 , 0 , 0 , 1 , 0 ),\
(( >> , shift_right , 1 , 0 , 0 , 1 , 0 ),\
(( < , less , 1 , 1 , 1 , 0 , 0 ),\
(( <= , less_equal , 1 , 1 , 1 , 0 , 0 ),\
(( >= , greater_equal , 1 , 1 , 1 , 0 , 0 ),\
(( > , greater , 1 , 1 , 1 , 0 , 0 ),\
(( == , equal , 1 , 1 , 1 , 0 , 1 ),\
(( != , not_equal , 1 , 1 , 1 , 0 , 1 ),\
(( & , bitwise_and , 1 , 0 , 0 , 0 , 1 ),\
(( | , bitwise_or , 1 , 0 , 0 , 0 , 1 ),\
(( ^ , bitwise_xor , 1 , 0 , 0 , 0 , 1 ),\
(( && , logical_and , 1 , 1 , 1 , 0 , 1 ),\
(( || , logical_or , 1 , 1 , 1 , 0 , 1 ),\
(_,_,0),1),1),1),1),1),1),1),1),1),1),1),1),1),1),1),1),1),1)
/* ** Information about C operators for preprocessor metaprogramming. ** */
/* Accessors for the operator datatype. */
#define OP_SYMBOL(O) BOOST_PP_TUPLE7_ELEM0 O
#define OP_NAME(O) BOOST_PP_TUPLE7_ELEM1 O
#define OP_IS_BINARY(O) BOOST_PP_TUPLE7_ELEM2 O
@ -68,29 +43,87 @@
#define OP_IS_SHIFT(O) BOOST_PP_TUPLE7_ELEM5 O
#define OP_IS_COMMUTATIVE(O) BOOST_PP_TUPLE7_ELEM6 O
/* type ,abbr,flt,lng,uns,siz*/
#define TYPES\
(( signed char , sc , 0 , 0 , 0 , 1 ),\
(( unsigned char , uc , 0 , 0 , 1 , 1 ),\
(( short , ss , 0 , 0 , 0 , 2 ),\
(( unsigned short , us , 0 , 0 , 1 , 2 ),\
(TYPE_INT,\
(( unsigned int , ui , 0 , 0 , 1 , 4 ),\
(( long , sl , 0 , 1 , 0 , 4 ),\
(( unsigned long , ul , 0 , 1 , 1 , 4 ),\
(( float , fl , 1 , 0 , 0 , 4 ),\
(( double , db , 1 , 0 , 0 , 8 ),\
(( long double , ld , 1 , 1 , 0 , 8 ),\
(_,_,0),1),1),1),1),1),1),1),1),1),1),1)
/* List of applicative unary operators. */
#define APPLICATIVE_UNARY_OPS\
BOOST_PP_TUPLE_TO_LIST\
( 3\
, ( ( ! , logical_not , 0 , 1 , 1 , 0 , 0 )\
, ( ~ , bitwise_not , 0 , 0 , 0 , 0 , 0 )\
, ( - , neg , 0 , 1 , 0 , 0 , 0 )\
)\
)
#define TYPE_INT ( int , si , 0 , 0 , 0 , 4 )
/* List of applicative binary operators. */
#define APPLICATIVE_BINARY_OPS\
BOOST_PP_LIST_APPEND\
( BOOST_PP_TUPLE_TO_LIST(\
( 2\
, ( ( * , mul , 1 , 1 , 0 , 0 , 1 )\
, ( / , div , 1 , 1 , 0 , 0 , 0 )\
)\
),\
, BOOST_PP_TUPLE_TO_LIST\
( 16\
, ( ( % , mod , 1 , 0 , 0 , 0 , 0 )\
, ( + , add , 1 , 1 , 0 , 0 , 1 )\
, ( - , sub , 1 , 1 , 0 , 0 , 0 )\
, ( << , shift_left , 1 , 0 , 0 , 1 , 0 )\
, ( >> , shift_right , 1 , 0 , 0 , 1 , 0 )\
, ( < , less , 1 , 1 , 1 , 0 , 0 )\
, ( <= , less_equal , 1 , 1 , 1 , 0 , 0 )\
, ( >= , greater_equal , 1 , 1 , 1 , 0 , 0 )\
, ( > , greater , 1 , 1 , 1 , 0 , 0 )\
, ( == , equal , 1 , 1 , 1 , 0 , 1 )\
, ( != , not_equal , 1 , 1 , 1 , 0 , 1 )\
, ( & , bitwise_and , 1 , 0 , 0 , 0 , 1 )\
, ( | , bitwise_or , 1 , 0 , 0 , 0 , 1 )\
, ( ^ , bitwise_xor , 1 , 0 , 0 , 0 , 1 )\
, ( && , logical_and , 1 , 1 , 1 , 0 , 1 )\
, ( || , logical_or , 1 , 1 , 1 , 0 , 1 )\
)\
)\
)
/* ** Information about C built-in types for preprocessor metaprogramming. ** */
/* Accessors for the type datatype. */
#define TYPE_NAME(T) BOOST_PP_TUPLE6_ELEM0 T
#define TYPE_ABBREVIATION(T) BOOST_PP_TUPLE6_ELEM1 T
#define TYPE_IS_FLOATING(T) BOOST_PP_TUPLE6_ELEM2 T
#define TYPE_IS_LONG(T) BOOST_PP_TUPLE6_ELEM3 T
#define TYPE_IS_UNSIGNED(T) BOOST_PP_TUPLE6_ELEM4 T
#define TYPE_SIZE(T) BOOST_PP_TUPLE6_ELEM5 T
/* List of C built-in types.
*
* Some of the information is platform dependent, but this example
* does not take that into consideration.
*/
#define BUILTIN_TYPES\
BOOST_PP_TUPLE_TO_LIST\
( 12\
, ( ( signed char , sc , 0 , 0 , 0 , 1 )\
, ( char , ch , 0 , 0 , 0 , 1 )\
, ( unsigned char , uc , 0 , 0 , 1 , 1 )\
, ( short , ss , 0 , 0 , 0 , 2 )\
, ( unsigned short , us , 0 , 0 , 1 , 2 )\
, TYPE_INT\
, ( unsigned int , ui , 0 , 0 , 1 , 4 )\
, ( long , sl , 0 , 1 , 0 , 4 )\
, ( unsigned long , ul , 0 , 1 , 1 , 4 )\
, ( float , fl , 1 , 0 , 0 , 4 )\
, ( double , db , 1 , 0 , 0 , 8 )\
, ( long double , ld , 1 , 1 , 0 , 8 )\
)\
)
/* Type int is needed in some type operations. */
#define TYPE_INT ( int , si , 0 , 0 , 0 , 4 )
/* Computes the rank of the type for:
* - integer promotions, and
* - usual arithmetic conversions.
*/
#define TYPE_RANK(T)\
BOOST_PP_ADD\
( BOOST_PP_ADD\
@ -102,15 +135,22 @@
)\
, TYPE_IS_UNSIGNED(T)\
)
#define TYPE_IS_SAME(L,R) BOOST_PP_EQUAL(TYPE_RANK(L),TYPE_RANK(R))
/* Integer promotion and usual arithmetic conversions */
#define INTEGER_PROMOTION(T) BOOST_PP_IF(BOOST_PP_LESS(TYPE_RANK(T),TYPE_RANK(TYPE_INT)),TYPE_INT,T)
/* Compute the type of the result of an integral promotion. */
#define INTEGER_PROMOTION(T) BOOST_PP_IF(BOOST_PP_LESS(TYPE_RANK(T),TYPE_RANK(TYPE_INT)),TYPE_INT,T)
/* Computes the type of the result of an usual arithmetic conversion. */
#define USUAL_ARITHMETIC_CONVERSION(L,R) INTEGER_PROMOTION(BOOST_PP_IF(BOOST_PP_LESS(TYPE_RANK(L),TYPE_RANK(R)),R,L))
#define UNARY_OP_RESULT(O,T) BOOST_PP_IF(OP_IS_LOGICAL(O),TYPE_INT,INTEGER_PROMOTION(T))
/* Computes the type of applying a unary operator. */
#define UNARY_OP_RESULT(O,T) BOOST_PP_IF(OP_IS_LOGICAL(O),TYPE_INT,INTEGER_PROMOTION(T))
/* Computes the type of applying a binary operator. */
#define BINARY_OP_RESULT(O,L,R) BOOST_PP_IF(OP_IS_LOGICAL(O),TYPE_INT,BOOST_PP_IF(OP_IS_SHIFT(O),INTEGER_PROMOTION(L),USUAL_ARITHMETIC_CONVERSION(L,R)))
/* Generates code for all all unary operators and integral types. */
#define UNARY_ARRAY_OP(_,L)\
UNARY_ARRAY_OP2(BOOST_PP_LIST_AT(L,1),BOOST_PP_LIST_AT(L,0))
#define UNARY_ARRAY_OP2(O,T)\
@ -124,9 +164,9 @@
(const TYPE_NAME(T)* in, TYPE_NAME(UNARY_OP_RESULT(O,T))* out, size_t n)\
{ do { *out++ = OP_SYMBOL(O) *in++; } while (--n); }
/* Unary array ops */
BOOST_PP_LIST_FOR_EACH_PRODUCT(UNARY_ARRAY_OP,_,BOOST_PP_TUPLE_TO_LIST(2,(UNARY_OPS,TYPES)))
BOOST_PP_LIST_FOR_EACH_PRODUCT(UNARY_ARRAY_OP,_,BOOST_PP_TUPLE_TO_LIST(2,(APPLICATIVE_UNARY_OPS,TYPES)))
/* Generates code for all binary operators and integral type pairs. */
#define BINARY_ARRAY_OP(_,L)\
BINARY_ARRAY_OP2(BOOST_PP_LIST_AT(L,2),BOOST_PP_LIST_AT(L,1),BOOST_PP_LIST_AT(L,0))
#define BINARY_ARRAY_OP2(O,L,R)\
@ -140,5 +180,4 @@ BOOST_PP_LIST_FOR_EACH_PRODUCT(UNARY_ARRAY_OP,_,BOOST_PP_TUPLE_TO_LIST(2,(UNARY_
(const TYPE_NAME(L)* lhs_in, const TYPE_NAME(R)* rhs_in, TYPE_NAME(BINARY_OP_RESULT(O,L,R))* out, size_t n)\
{ do { *out++ = *lhs_in++ OP_SYMBOL(O) *rhs_in++; } while (--n); }
/* Binary array ops */
BOOST_PP_LIST_FOR_EACH_PRODUCT(BINARY_ARRAY_OP,_,BOOST_PP_TUPLE_TO_LIST(3,(BINARY_OPS,TYPES,TYPES)))
BOOST_PP_LIST_FOR_EACH_PRODUCT(BINARY_ARRAY_OP,_,BOOST_PP_TUPLE_TO_LIST(3,(APPLICATIVE_BINARY_OPS,TYPES,TYPES)))