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34a0df159b
* ext/fiddle/conversions.h (PTR2NUM): use signed integer to make Fixnum for negative values. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53081 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
#ifndef FIDDLE_CONVERSIONS_H
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#define FIDDLE_CONVERSIONS_H
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#include <fiddle.h>
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typedef union
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{
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ffi_arg fffi_arg; /* rvalue smaller than unsigned long */
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ffi_sarg fffi_sarg; /* rvalue smaller than signed long */
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unsigned char uchar; /* ffi_type_uchar */
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signed char schar; /* ffi_type_schar */
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unsigned short ushort; /* ffi_type_sshort */
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signed short sshort; /* ffi_type_ushort */
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unsigned int uint; /* ffi_type_uint */
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signed int sint; /* ffi_type_sint */
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unsigned long ulong; /* ffi_type_ulong */
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signed long slong; /* ffi_type_slong */
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float ffloat; /* ffi_type_float */
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double ddouble; /* ffi_type_double */
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#if HAVE_LONG_LONG
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unsigned LONG_LONG ulong_long; /* ffi_type_ulong_long */
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signed LONG_LONG slong_long; /* ffi_type_ulong_long */
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#endif
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void * pointer; /* ffi_type_pointer */
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} fiddle_generic;
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ffi_type * int_to_ffi_type(int type);
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void value_to_generic(int type, VALUE src, fiddle_generic * dst);
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VALUE generic_to_value(VALUE rettype, fiddle_generic retval);
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#define VALUE2GENERIC(_type, _src, _dst) value_to_generic((_type), (_src), (_dst))
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#define INT2FFI_TYPE(_type) int_to_ffi_type(_type)
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#define GENERIC2VALUE(_type, _retval) generic_to_value((_type), (_retval))
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#if SIZEOF_VOIDP == SIZEOF_LONG
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# define PTR2NUM(x) (LONG2NUM((long)(x)))
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# define NUM2PTR(x) ((void*)(NUM2ULONG(x)))
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#else
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/* # error --->> Ruby/DL2 requires sizeof(void*) == sizeof(long) to be compiled. <<--- */
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# define PTR2NUM(x) (LL2NUM((LONG_LONG)(x)))
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# define NUM2PTR(x) ((void*)(NUM2ULL(x)))
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#endif
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#endif
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