Deprecated List

Global Check_SafeStr (v)

This macro once was a thing in the old days, but makes no sense any longer today.

Global Check_TypedStruct (v, t)

Use rb_check_typeddata instead.

Global _ (args)

Nobody practically needs this macro any longer.

Global __ (args)

Nobody practically needs this macro any longer.

Global ALLOC

Use RB_ALLOC instead.

Global ALLOC_N

Use RB_ALLOC_N instead.

Global ALLOCA_N (type, n)

This macro is dangerous (does not bother stack overflow at all).

Global ALLOCV

Use RB_ALLOCV instead.

Global ALLOCV_END

Use RB_ALLOCV_END instead.

Global ALLOCV_N

Use RB_ALLOCV_N instead.

Global ASSUME

Use RBIMPL_ASSUME instead.

Global BUILTIN_TYPE

Use RB_BUILTIN_TYPE instead.

Global CHR2FIX

Use RB_CHR2FIX instead.

Global CLASS_OF

Use rb_class_of instead.

Global CLONESETUP

Use rb_clone_setup instead.

Global CONST_ID

Use RUBY_CONST_ID instead.

Global CONST_ID_CACHE

Use RUBY_CONST_ID_CACHE instead.

Global DBL2NUM

Use rb_float_new instead.

Global DUPSETUP

Use rb_dup_setup instead.

Global DYNAMIC_SYM_P

Use RB_DYNAMIC_SYM_P instead.

Global ECONV_AFTER_OUTPUT

Use RUBY_ECONV_AFTER_OUTPUT instead.

Global ECONV_CR_NEWLINE_DECORATOR

Use RUBY_ECONV_CR_NEWLINE_DECORATOR instead.

Global ECONV_CRLF_NEWLINE_DECORATOR

Use RUBY_ECONV_CRLF_NEWLINE_DECORATOR instead.

Global ECONV_DECORATOR_MASK

Use RUBY_ECONV_DECORATOR_MASK instead.

Global ECONV_DEFAULT_NEWLINE_DECORATOR

Use RUBY_ECONV_DEFAULT_NEWLINE_DECORATOR instead.

Global ECONV_ERROR_HANDLER_MASK

Use RUBY_ECONV_ERROR_HANDLER_MASK instead.

Global ECONV_INVALID_MASK

Use RUBY_ECONV_INVALID_MASK instead.

Global ECONV_INVALID_REPLACE

Use RUBY_ECONV_INVALID_REPLACE instead.

Global ECONV_LF_NEWLINE_DECORATOR

Use RUBY_ECONV_LF_NEWLINE_DECORATOR instead.

Global ECONV_NEWLINE_DECORATOR_MASK

Use RUBY_ECONV_NEWLINE_DECORATOR_MASK instead.

Global ECONV_NEWLINE_DECORATOR_READ_MASK

Use RUBY_ECONV_NEWLINE_DECORATOR_READ_MASK instead.

Global ECONV_NEWLINE_DECORATOR_WRITE_MASK

Use RUBY_ECONV_NEWLINE_DECORATOR_WRITE_MASK instead.

Global ECONV_PARTIAL_INPUT

Use RUBY_ECONV_PARTIAL_INPUT instead.

Global ECONV_STATEFUL_DECORATOR_MASK

Use RUBY_ECONV_STATEFUL_DECORATOR_MASK instead.

Global ECONV_UNDEF_HEX_CHARREF

Use RUBY_ECONV_UNDEF_HEX_CHARREF instead.

Global ECONV_UNDEF_MASK

Use RUBY_ECONV_UNDEF_MASK instead.

Global ECONV_UNDEF_REPLACE

Use RUBY_ECONV_UNDEF_REPLACE instead.

Global ECONV_UNIVERSAL_NEWLINE_DECORATOR

Use RUBY_ECONV_UNIVERSAL_NEWLINE_DECORATOR instead.

Global ECONV_XML_ATTR_CONTENT_DECORATOR

Use RUBY_ECONV_XML_ATTR_CONTENT_DECORATOR instead.

Global ECONV_XML_ATTR_QUOTE_DECORATOR

Use RUBY_ECONV_XML_ATTR_QUOTE_DECORATOR instead.

Global ECONV_XML_TEXT_DECORATOR

Use RUBY_ECONV_XML_TEXT_DECORATOR instead.

Global ELTS_SHARED

Use RUBY_ELTS_SHARED instead.

Global ENC_CODERANGE (obj)

Use RB_ENC_CODERANGE instead.

Global ENC_CODERANGE_7BIT

Use RUBY_ENC_CODERANGE_7BIT instead.

Global ENC_CODERANGE_AND (a, b)

Use RB_ENC_CODERANGE_AND instead.

Global ENC_CODERANGE_ASCIIONLY (obj)

Use RB_ENC_CODERANGE_ASCIIONLY instead.

Global ENC_CODERANGE_BROKEN

Use RUBY_ENC_CODERANGE_BROKEN instead.

Global ENC_CODERANGE_CLEAN_P (cr)

Use RB_ENC_CODERANGE_CLEAN_P instead.

Global ENC_CODERANGE_CLEAR (obj)

Use RB_ENC_CODERANGE_CLEAR instead.

Global ENC_CODERANGE_MASK

Use RUBY_ENC_CODERANGE_MASK instead.

Global ENC_CODERANGE_SET (obj, cr)

Use RB_ENC_CODERANGE_SET instead.

Global ENC_CODERANGE_UNKNOWN

Use RUBY_ENC_CODERANGE_UNKNOWN instead.

Global ENC_CODERANGE_VALID

Use RUBY_ENC_CODERANGE_VALID instead.

Global ENCODING_CODERANGE_SET (obj, encindex, cr)

Use RB_ENCODING_CODERANGE_SET instead.

Global ENCODING_GET (obj)

Use RB_ENCODING_GET instead.

Global ENCODING_GET_INLINED (obj)

Use RB_ENCODING_GET_INLINED instead.

Global ENCODING_INLINE_MAX

Use RUBY_ENCODING_INLINE_MAX instead.

Global ENCODING_IS_ASCII8BIT (obj)

Use RB_ENCODING_IS_ASCII8BIT instead.

Global ENCODING_MASK

Use RUBY_ENCODING_MASK instead.

Global ENCODING_MAXNAMELEN

Use RUBY_ENCODING_MAXNAMELEN instead.

Global ENCODING_SET (obj, i)

Use RB_ENCODING_SET instead.

Global ENCODING_SET_INLINED (obj, i)

Use RB_ENCODING_SET_INLINED instead.

Global ENCODING_SHIFT

Use RUBY_ENCODING_SHIFT instead.

Global FIX2INT

Use RB_FIX2INT instead.

Global FIX2LONG

Use RB_FIX2LONG instead.

Global FIX2SHORT

Use RB_FIX2SHORT instead.

Global FIX2UINT

Use RB_FIX2UINT instead.

Global FIX2ULONG

Use RB_FIX2ULONG instead.

Global FIXABLE

Use RB_FIXABLE instead.

Global FIXNUM_FLAG

Use RUBY_FIXNUM_FLAG instead.

Global FIXNUM_MAX

Use RUBY_FIXNUM_MAX instead.

Global FIXNUM_MIN

Use RUBY_FIXNUM_MIN instead.

Global FIXNUM_P

Use RB_FIXNUM_P instead.

Global FL_ABLE

Use RB_FL_ABLE instead.

Global FL_ALL

Use RB_FL_ALL instead.

Global FL_ALL_RAW

Use RB_FL_ALL_RAW instead.

Global FL_ANY

Use RB_FL_ANY instead.

Global FL_ANY_RAW

Use RB_FL_ANY_RAW instead.

Global FL_EXIVAR

Use RUBY_FL_EXIVAR instead.

Global FL_FINALIZE

Use RUBY_FL_FINALIZE instead.

Global FL_FREEZE

Use RUBY_FL_FREEZE instead.

Global FL_PROMOTED

Use RUBY_FL_PROMOTED instead.

Global FL_REVERSE

Use RB_FL_REVERSE instead.

Global FL_REVERSE_RAW

Use RB_FL_REVERSE_RAW instead.

Global FL_SEEN_OBJ_ID

Use RUBY_FL_SEEN_OBJ_ID instead.

Global FL_SET

Use RB_FL_SET instead.

Global FL_SET_RAW

Use RB_FL_SET_RAW instead.

Global FL_SHAREABLE

Use RUBY_FL_SHAREABLE instead.

Global FL_SINGLETON

Use RUBY_FL_SINGLETON instead.

Global FL_TAINT

Use RUBY_FL_TAINT instead.

Global FL_TEST

Use RB_FL_TEST instead.

Global FL_TEST_RAW

Use RB_FL_TEST_RAW instead.

Global FL_UNSET

Use RB_FL_UNSET instead.

Global FL_UNSET_RAW

Use RB_FL_UNSET_RAW instead.

Global FL_UNTRUSTED

Use RUBY_FL_UNTRUSTED instead.

Global FL_USER0

Use RUBY_FL_USER0 instead.

Global FL_USER1

Use RUBY_FL_USER1 instead.

Global FL_USER10

Use RUBY_FL_USER10 instead.

Global FL_USER11

Use RUBY_FL_USER11 instead.

Global FL_USER12

Use RUBY_FL_USER12 instead.

Global FL_USER13

Use RUBY_FL_USER13 instead.

Global FL_USER14

Use RUBY_FL_USER14 instead.

Global FL_USER15

Use RUBY_FL_USER15 instead.

Global FL_USER16

Use RUBY_FL_USER16 instead.

Global FL_USER17

Use RUBY_FL_USER17 instead.

Global FL_USER18

Use RUBY_FL_USER18 instead.

Global FL_USER19

Use RUBY_FL_USER19 instead.

Global FL_USER2

Use RUBY_FL_USER2 instead.

Global FL_USER3

Use RUBY_FL_USER3 instead.

Global FL_USER4

Use RUBY_FL_USER4 instead.

Global FL_USER5

Use RUBY_FL_USER5 instead.

Global FL_USER6

Use RUBY_FL_USER6 instead.

Global FL_USER7

Use RUBY_FL_USER7 instead.

Global FL_USER8

Use RUBY_FL_USER8 instead.

Global FL_USER9

Use RUBY_FL_USER9 instead.

Global FL_USHIFT

Use RUBY_FL_USHIFT instead.

Global FL_WB_PROTECTED

Use RUBY_FL_WB_PROTECTED instead.

Global FLONUM_FLAG

Use RUBY_FLONUM_FLAG instead.

Global FLONUM_MASK

Use RUBY_FLONUM_MASK instead.

Global FLONUM_P

Use RB_FLONUM_P instead.

Global HAVE_NATIVETHREAD

This macro once was a thing in the old days, but makes no sense any longer today.

Global HAVE_RB_DATA_TYPE_T_FUNCTION

This macro once was a thing in the old days, but makes no sense any longer today.

Global HAVE_RB_DATA_TYPE_T_PARENT

This macro once was a thing in the old days, but makes no sense any longer today.

Global HAVE_RB_DEFINE_ALLOC_FUNC

This macro once was a thing in the old days, but makes no sense any longer today.

Global HAVE_RB_REG_NEW_STR

This macro once was a thing in the old days, but makes no sense any longer today.

Global HAVE_RB_SCAN_ARGS_OPTIONAL_HASH

This macro once was a thing in the old days, but makes no sense any longer today.

Global HAVE_TYPE_RB_DATA_TYPE_T

This macro once was a thing in the old days, but makes no sense any longer today.

Global ID2SYM

Use RB_ID2SYM instead.

Global IMMEDIATE_MASK

Use RUBY_IMMEDIATE_MASK instead.

Global IMMEDIATE_P

Use RB_IMMEDIATE_P instead.

Global INT2FIX

Use RB_INT2FIX instead.

Global INT2NUM

Use RB_INT2NUM instead.

Global ISALNUM

Use rb_isalnum instead.

Global ISALPHA

Use rb_isalpha instead.

Global ISASCII

Use rb_isascii instead.

Global ISBLANK

Use rb_isblank instead.

Global ISCNTRL

Use rb_iscntrl instead.

Global ISDIGIT

Use rb_isdigit instead.

Global ISGRAPH

Use rb_isgraph instead.

Global ISLOWER

Use rb_islower instead.

Global ISPRINT

Use rb_isprint instead.

Global ISPUNCT

Use rb_ispunct instead.

Global ISSPACE

Use rb_isspace instead.

Global ISUPPER

Use rb_isupper instead.

Global ISXDIGIT

Use rb_isxdigit instead.

Global LL2NUM

Use RB_LL2NUM instead.

Global LONG2FIX

Use RB_INT2FIX instead.

Global LONG2NUM

Use RB_LONG2NUM instead.

Global LONG_LONG

Just use long long directly.

Global MBCLEN_CHARFOUND_LEN (ret)

Use ONIGENC_MBCLEN_CHARFOUND_LEN instead.

Global MBCLEN_CHARFOUND_P (ret)

Use ONIGENC_MBCLEN_CHARFOUND_P instead.

Global MBCLEN_INVALID_P (ret)

Use ONIGENC_MBCLEN_INVALID_P instead.

Global MBCLEN_NEEDMORE_LEN (ret)

Use ONIGENC_MBCLEN_NEEDMORE_LEN instead.

Global MBCLEN_NEEDMORE_P (ret)

Use ONIGENC_MBCLEN_NEEDMORE_P instead.

Global NEGFIXABLE

Use RB_NEGFIXABLE instead.

Global NIL_P

Use RB_NIL_P instead.

Global NUM2CHR

Use RB_NUM2CHR instead.

Global NUM2DBL

Use rb_num2dbl instead.

Global NUM2INT

Use RB_NUM2INT instead.

Global NUM2LL

Use RB_NUM2LL instead.

Global NUM2LONG

Use RB_NUM2LONG instead.

Global NUM2SHORT

Use RB_NUM2SHORT instead.

Global NUM2SIZET

Use RB_NUM2SIZE instead.

Global NUM2SSIZET

Use RB_NUM2SSIZE instead.

Global NUM2UINT

Use RB_NUM2UINT instead.

Global NUM2ULL

Use RB_NUM2ULL instead.

Global NUM2ULONG

Use RB_NUM2ULONG instead.

Global NUM2USHORT

Use RB_NUM2USHORT instead.

Global OBJ_FREEZE

Use RB_OBJ_FREEZE instead.

Global OBJ_FREEZE_RAW

Use RB_OBJ_FREEZE_RAW instead.

Global OBJ_FROZEN

Use RB_OBJ_FROZEN instead.

Global OBJ_FROZEN_RAW

Use RB_OBJ_FROZEN_RAW instead.

Global OBJ_INFECT

Use RB_OBJ_INFECT instead.

Global OBJ_INFECT_RAW

Use RB_OBJ_INFECT_RAW instead.

Global OBJ_INIT_COPY (obj, orig)

Use RB_OBJ_INIT_COPY instead.

Global OBJ_PROMOTED

Use RB_OBJ_PROMOTED instead.

Global OBJ_PROMOTED_RAW

Use RB_OBJ_PROMOTED_RAW instead.

Global OBJ_TAINT

Use RB_OBJ_TAINT instead.

Global OBJ_TAINT_RAW

Use RB_OBJ_TAINT_RAW instead.

Global OBJ_TAINTABLE

Use RB_OBJ_TAINT_RAW instead.

Global OBJ_TAINTED

Use RB_OBJ_TAINTED instead.

Global OBJ_TAINTED_RAW

Use RB_OBJ_TAINTED_RAW instead.

Global OBJ_UNTRUST

Use RB_OBJ_TAINT instead.

Global OBJ_UNTRUSTED

Use RB_OBJ_TAINTED instead.

Global OBJ_WB_UNPROTECT

Use RB_OBJ_WB_UNPROTECT instead.

Global OBJSETUP

Use rb_obj_setup instead.

Global PATH_ENV

This macro once was a thing in the old days, but makes no sense any longer today.

Global POSFIXABLE

Use RB_POSFIXABLE instead.

Global Qfalse

Use RUBY_Qfalse instead.

Global Qnil

Use RUBY_Qnil instead.

Global Qtrue

Use RUBY_Qtrue instead.

Global Qundef

Use RUBY_Qundef instead.

Global RARRAY_AREF (a, i)

Global rb_ary_new2

Use rb_ary_new_capa instead.

Global rb_ary_new3

Use rb_ary_new_from_args instead.

Global rb_ary_new4

Use rb_ary_new_from_values instead.

Global RB_BLOCK_CALL_FUNC_STRICT

This macro once was a thing in the old days, but makes no sense any longer today.

Global rb_check_frozen_internal

Global rb_clone_setup (VALUE clone, VALUE obj)

Not sure exactly when but at some time, the implementation of Object#clone stopped using this function.

Global rb_complex_polar (VALUE abs, VALUE arg)

Use rb_complex_new_polar instead.

Global rb_data_object_alloc (VALUE klass, void *data, RUBY_DATA_FUNC dmark, RUBY_DATA_FUNC dfree)

This function was renamed to rb_data_object_wrap().

Global rb_data_typed_object_alloc (VALUE klass, void *datap, const rb_data_type_t *type)

This function was renamed to rb_data_typed_object_wrap().

Global rb_defout

This macro once was a thing in the old days, but makes no sense any longer today.

Global rb_dup_setup (VALUE dup, VALUE obj)

Not sure exactly when but at some time, the implementation of Object#dup stopped using this function.

Global rb_enc_codepoint (const char *p, const char *e, rb_encoding *enc)

Use rb_enc_codepoint_len() instead.

Global RB_EVENT_HOOKS_HAVE_CALLBACK_DATA

This macro once was a thing in the old days, but makes no sense any longer today.

Global rb_exc_new2

Use rb_exc_new_cstr instead.

Global rb_exc_new3

Use rb_exc_new_str instead.

Global rb_funcall2

This is an old name of rb_funcallv().

Global rb_funcall3

This is an old name of rb_funcallv_public().

Global rb_get_path_no_checksafe (VALUE)

This function is an alias of rb_get_path() now.

Global rb_gvar_undef_getter

Global rb_gvar_undef_marker

Global rb_gvar_undef_setter

Global rb_gvar_var_getter

Global rb_gvar_var_marker

Global rb_gvar_var_setter

Global RB_INTEGER_TYPE_P

Use rb_integer_type_p instead.

Global rb_io_taint_check (VALUE obj)

This function once was a thing in the old days, but makes no sense any longer today.

Global rb_io_wait_readable (int fd)

We now prefer rb_io_maybe_wait_readable() over this one.

Global rb_io_wait_writable (int fd)

We now prefer rb_io_maybe_wait_writable() over this one.

Global rb_iterate (VALUE(*func1)(VALUE), VALUE data1, rb_block_call_func_t proc, VALUE data2)

This is an old API. Use rb_block_call() instead.

Global rb_memcmp

This macro once was a thing in the old days, but makes no sense any longer today.

Global rb_mul_size_overflow (size_t a, size_t b, size_t max, size_t *c)

This function was an implementation detail of old RB_ALLOCV_N().

Global RB_NUM_COERCE_FUNCS_NEED_OPID

This macro once was a thing in the old days, but makes no sense any longer today.

Global RB_OBJ_INFECT (VALUE dst, VALUE src)

This function once was a thing in the old days, but makes no sense any longer today.

Global RB_OBJ_INFECT_RAW (VALUE dst, VALUE src)

This function once was a thing in the old days, but makes no sense any longer today.

Global RB_OBJ_TAINT (VALUE obj)

This function once was a thing in the old days, but makes no sense any longer today.

Global RB_OBJ_TAINT_RAW (VALUE obj)

This function once was a thing in the old days, but makes no sense any longer today.

Global RB_OBJ_TAINTABLE (VALUE obj)

This function once was a thing in the old days, but makes no sense any longer today.

Global RB_OBJ_TAINTED (VALUE obj)

This function once was a thing in the old days, but makes no sense any longer today.

Global RB_OBJ_TAINTED_RAW (VALUE obj)

This function once was a thing in the old days, but makes no sense any longer today.

Global rb_output_fs

Assigning anything other than RUBY_Qnil to this variable is deprecated.

Global rb_output_rs

Assigning anything other than RUBY_Qnil to this variable is deprecated.

Global rb_postponed_job_register (unsigned int flags, rb_postponed_job_func_t func, void *data)

This interface implies that arbitrarily many func's can be enqueued over the lifetime of the program, whilst in reality the registration slots for postponed jobs are a finite resource. This is made clearer by the rb_postponed_job_preregister and rb_postponed_job_trigger functions, and a future version of Ruby might delete this function.

Global rb_postponed_job_register_one (unsigned int flags, rb_postponed_job_func_t func, void *data)

This is deprecated for the same reason as rb_postponed_job_register

Global rb_rs

Assigning anything other than RUBY_Qnil to this variable is deprecated.

Global rb_str_buf_cat2

Use rb_usascii_str_new_cstr instead.

Global rb_str_buf_new2

Use rb_str_buf_new_cstr instead.

Global rb_str_cat2

Use rb_str_cat_cstr instead.

Global rb_str_new2

Use rb_str_new_cstr instead.

Global rb_str_new3

Use rb_str_new_shared instead.

Global rb_str_new4

Use rb_str_new_frozen instead.

Global rb_str_new5

Use rb_str_new_with_class instead.

Global rb_usascii_str_new2

Use rb_usascii_str_new_cstr instead.

Global rb_wait_for_single_fd (int fd, int events, struct timeval *tv)

We now prefer rb_io_maybe_wait() over this one.

Class RData

Global REALLOC_N

Use RB_REALLOC_N instead.

Global Regexp

Use re_pattern_buffer instead.

Global RFLOAT_VALUE

Use rb_float_value instead.

Global RGENGC_WB_PROTECTED_NODE_CREF

This macro once was a thing in the old days, but makes no sense any longer today.

Global RHASH_IFNONE (h)

This macro once was a thing in the old days, but makes no sense any longer today.

Global RSTRUCT_PTR (st)

This macro once was a thing in the old days, but makes no sense any longer today.

Global ruby::backward::cxxanyargs::define_method::driver0< T, F >::engine< N, U >::define (T mid, notimpl_type func)

Pass correctly typed function instead.

Global ruby::backward::cxxanyargs::define_method::driver0< T, F >::engine< N, U >::define (T mid, type func)

Pass correctly typed function instead.

Global ruby::backward::cxxanyargs::define_method::driver< T, F >::engine< N, U >::define (VALUE klass, T mid, type func)

Pass correctly typed function instead.

Global ruby::backward::cxxanyargs::rb_block_call (VALUE q, ID w, int e, const VALUE *r, type *t, VALUE y)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_catch (const char *q, type *w, VALUE e)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_catch_obj (VALUE q, type *w, VALUE e)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_define_hooked_variable (const char *q, VALUE *w, type *e, void_type *r)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_define_virtual_variable (const char *q, type *w, void_type *e)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_ensure (type *q, VALUE w, type *e, VALUE r)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_fiber_new (type *q, VALUE w)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_hash_foreach (VALUE q, int_type *w, VALUE e)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_iterate (onearg_type *q, VALUE w, type *e, VALUE r)

This function is obsoleted since long before 2.x era. Do not use it any longer. rb_block_call() is provided instead.

Global ruby::backward::cxxanyargs::rb_ivar_foreach (VALUE q, int_type *w, VALUE e)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_proc_new (type *q, VALUE w)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_rescue (type *q, VALUE w, type *e, VALUE r)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_rescue2 (type *q, VALUE w, type *e, VALUE r,...)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::rb_thread_create (type *q, void *w)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::st_foreach (st_table *q, int_type *w, st_data_t e)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::st_foreach_check (st_table *q, int_type *w, st_data_t e, st_data_t)

Use granular typed overload instead.

Global ruby::backward::cxxanyargs::st_foreach_safe (st_table *q, int_type *w, st_data_t e)

Use granular typed overload instead.

Global ruby::backward::rb_iterate_deprecated (VALUE(*iter)(VALUE), VALUE data1, rb_block_call_func_t bl, VALUE data2)

This is an old API. Use rb_block_call() instead.

Global RUBY_BLOCK_CALL_FUNC_TAKES_BLOCKARG

This macro once was a thing in the old days, but makes no sense any longer today.

Global RUBY_CALL_WO_GVL_FLAG_SKIP_CHECK_INTS_

It seems even in the old days it made no sense...?

Global RUBY_CALL_WO_GVL_FLAG_SKIP_CHECK_INTS_AFTER

This macro once was a thing in the old days, but makes no sense any longer today.

Global RUBY_CONST_ID (var, str)

Does anyone use it? Preserved for backward compat.

Global RUBY_CONST_ID_CACHE (result, str)

Does anyone use it? Preserved for backward compat.

Global RUBY_EVENT_SWITCH

Use RUBY_INTERNAL_EVENT_SWITCH instead.

Global RUBY_FL_DUPPED

This flag once was a thing back in the old days, but makes no sense any longer today.

Global RUBY_FL_TAINT

This flag once was a thing back in the old days, but makes no sense any longer today.

Global RUBY_FL_UNTRUSTED

This flag once was a thing back in the old days, but makes no sense any longer today.

Global RUBY_FL_WB_PROTECTED

This flag once was a thing back in the old days, but makes no sense any longer today.

Global RUBY_INTEGER_UNIFICATION

This macro once was a thing in the old days, but makes no sense any longer today.

Global RUBY_UNTYPED_DATA_FUNC (f)

This macro once was a thing in the old days, but makes no sense any longer today.

Global RUBY_VM

This macro once was a thing in the old days, but makes no sense any longer today.

Global SafeStringValue (v)

This macro once was a thing in the old days, but makes no sense any longer today.

Global scan_hex (s, l, e)

Use ruby_scan_hex instead.

Global scan_oct (s, l, e)

Use ruby_scan_oct instead.

Global SIZET2NUM

Use RB_SIZE2NUM instead.

Global SPECIAL_CONST_P

Use RB_SPECIAL_CONST_P instead.

Global SSIZET2NUM

Use RB_SSIZE2NUM instead.

Global ST2FIX

Use RB_ST2FIX instead.

Global STATIC_SYM_P

Use RB_STATIC_SYM_P instead.

Global STRCASECMP

Use st_locale_insensitive_strcasecmp instead.

Global STRNCASECMP

Use st_locale_insensitive_strncasecmp instead.

Global STRTOUL

Use ruby_strtoul instead.

Global SYM2ID

Use RB_SYM2ID instead.

Global SYMBOL_FLAG

Use RUBY_SYMBOL_FLAG instead.

Global SYMBOL_P

Use RB_SYMBOL_P instead.

Global T_ARRAY

Use RUBY_T_ARRAY instead.

Global T_BIGNUM

Use RUBY_T_BIGNUM instead.

Global T_CLASS

Use RUBY_T_CLASS instead.

Global T_COMPLEX

Use RUBY_T_COMPLEX instead.

Global T_DATA

Use RUBY_T_DATA instead.

Global T_FALSE

Use RUBY_T_FALSE instead.

Global T_FILE

Use RUBY_T_FILE instead.

Global T_FIXNUM

Use RUBY_T_FIXNUM instead.

Global T_FLOAT

Use RUBY_T_FLOAT instead.

Global T_HASH

Use RUBY_T_HASH instead.

Global T_ICLASS

Use RUBY_T_ICLASS instead.

Global T_IMEMO

Use RUBY_T_IMEMO instead.

Global T_MASK

Use RUBY_T_MASK instead.

Global T_MATCH

Use RUBY_T_MATCH instead.

Global T_MODULE

Use RUBY_T_MODULE instead.

Global T_MOVED

Use RUBY_T_MOVED instead.

Global T_NIL

Use RUBY_T_NIL instead.

Global T_NODE

Use RUBY_T_NODE instead.

Global T_NONE

Use RUBY_T_NONE instead.

Global T_OBJECT

Use RUBY_T_OBJECT instead.

Global T_RATIONAL

Use RUBY_T_RATIONAL instead.

Global T_REGEXP

Use RUBY_T_REGEXP instead.

Global T_STRING

Use RUBY_T_STRING instead.

Global T_STRUCT

Use RUBY_T_STRUCT instead.

Global T_SYMBOL

Use RUBY_T_SYMBOL instead.

Global T_TRUE

Use RUBY_T_TRUE instead.

Global T_UNDEF

Use RUBY_T_UNDEF instead.

Global T_ZOMBIE

Use RUBY_T_ZOMBIE instead.

Global TOLOWER

Use rb_tolower instead.

Global TOUPPER

Use rb_toupper instead.

Global TYPE (_)

Use rb_type instead.

Global UINT2NUM

Use RB_UINT2NUM instead.

Global ULL2NUM

Use RB_ULL2NUM instead.

Global ULONG2NUM

Use RB_ULONG2NUM instead.

Global UNREACHABLE

Use RBIMPL_UNREACHABLE instead.

Global UNREACHABLE_RETURN

Use RBIMPL_UNREACHABLE_RETURN instead.

Global USE_RGENGC

This macro once was a thing in the old days, but makes no sense any longer today.

Global USE_RGENGC_LOGGING_WB_UNPROTECT

This macro seems broken.

Global USE_SYMBOL_AS_METHOD_NAME

This macro once was a thing in the old days, but makes no sense any longer today.

Global USHORT2NUM

Use RB_INT2FIX instead.

Global xcalloc

Use ruby_xcalloc instead.

Global xfree

Use ruby_xfree instead.

Global xmalloc

Use ruby_xmalloc instead.

Global xmalloc2

Use ruby_xmalloc2 instead.

Global xrealloc

Use ruby_xrealloc instead.

Global xrealloc2

Use ruby_xrealloc2 instead.

Global ZALLOC

Use RB_ZALLOC instead.

Global ZALLOC_N

Use RB_ZALLOC_N instead.