internal.h (d17a0d008310e36d1e16f9614c7ca01fe38cf3d6)

#ifndef RUBY_INTERNAL_H                                  /*-*-C-*-vi:se ft=c:*/
#define RUBY_INTERNAL_H 1
#include "ruby/internal/config.h"
 
#ifdef __cplusplus
# error not for C++
#endif
 
#define LIKELY(x) RB_LIKELY(x)
#define UNLIKELY(x) RB_UNLIKELY(x)
 
#define numberof(array) ((int)(sizeof(array) / sizeof((array)[0])))
#define roomof(x, y) (((x) + (y) - 1) / (y))
#define type_roomof(x, y) roomof(sizeof(x), sizeof(y))
 
/* Prevent compiler from reordering access */
#define ACCESS_ONCE(type,x) (*((volatile type *)&(x)))
 
#define UNDEF_P         RB_UNDEF_P
#define NIL_OR_UNDEF_P  RB_NIL_OR_UNDEF_P
 
#include "ruby/ruby.h"
 
/* Following macros were formerly defined in this header but moved to somewhere
 * else.  In order to detect them we undef here. */
 
/* internal/array.h */
#undef RARRAY_AREF
 
/* internal/class.h */
#undef RClass
#undef RCLASS_SUPER
 
/* internal/hash.h */
#undef RHASH_IFNONE
#undef RHASH_SIZE
#undef RHASH_TBL
#undef RHASH_EMPTY_P
 
/* internal/struct.h */
#undef RSTRUCT_LEN
#undef RSTRUCT_PTR
#undef RSTRUCT_SET
#undef RSTRUCT_GET
 
/* Also,  we  keep  the  following  macros  here.   They  are  expected  to  be
 * overridden in each headers. */
 
/* internal/array.h */
#define rb_ary_new_from_args(...) rb_nonexistent_symbol(__VA_ARGS__)
 
/* internal/string.h */
#define rb_fstring_cstr(...) rb_nonexistent_symbol(__VA_ARGS__)
 
/* internal/symbol.h */
#define rb_sym_intern_ascii_cstr(...) rb_nonexistent_symbol(__VA_ARGS__)
 
 
/* MRI debug support */
 
/* gc.c */
void rb_obj_info_dump(VALUE obj);
void rb_obj_info_dump_loc(VALUE obj, const char *file, int line, const char *func);
 
/* debug.c */
 
RUBY_SYMBOL_EXPORT_BEGIN
void ruby_debug_breakpoint(void);
PRINTF_ARGS(void ruby_debug_printf(const char*, ...), 1, 2);
RUBY_SYMBOL_EXPORT_END
 
// show obj data structure without any side-effect
#define rp(obj) rb_obj_info_dump_loc((VALUE)(obj), __FILE__, __LINE__, RUBY_FUNCTION_NAME_STRING)
 
// same as rp, but add message header
#define rp_m(msg, obj) do { \
    fputs((msg), stderr); \
    rb_obj_info_dump((VALUE)(obj)); \
} while (0)
 
// `ruby_debug_breakpoint()` does nothing,
// but breakpoint is set in run.gdb, so `make gdb` can stop here.
#define bp() ruby_debug_breakpoint()
 
#define RBOOL(v) ((v) ? Qtrue : Qfalse)
#define RB_BIGNUM_TYPE_P(x) RB_TYPE_P((x), T_BIGNUM)
 
#ifndef __MINGW32__
#undef memcpy
#define memcpy ruby_nonempty_memcpy
#endif
#endif /* RUBY_INTERNAL_H */