自学教程：C++ ARGS_REQ函数代码示例

voidmrb_init_print(mrb_state *mrb){  struct RClass *krn;  krn = mrb->kernel_module;  mrb_define_method(mrb, krn, "__printstr__", mrb_printstr, ARGS_REQ(1));}

static void mrb_init_js_obj(mrb_state *mrb){    struct RClass *obj;    obj = MRB_UD_JS_OBJ_CLASS(mrb) = mrb_define_class(mrb, "JsObj", mrb->object_class);    MRB_SET_INSTANCE_TT(obj, MRB_TT_DATA);    mrb_define_class_method(mrb, obj, "get", mrb_js_obj_get, ARGS_REQ(1));    mrb_define_method(mrb, obj, "method_missing", mrb_js_obj_method_missing, ARGS_ANY());}

voidmrb_mruby_thread_gem_init(mrb_state* mrb) {  struct RClass *_class_thread, *_class_mutex;  _class_thread = mrb_define_class(mrb, "Thread", mrb->object_class);  mrb_define_method(mrb, _class_thread, "initialize", mrb_thread_init, ARGS_OPT(1));  mrb_define_method(mrb, _class_thread, "join", mrb_thread_join, ARGS_NONE());  mrb_define_method(mrb, _class_thread, "kill", mrb_thread_kill, ARGS_NONE());  mrb_define_method(mrb, _class_thread, "terminate", mrb_thread_kill, ARGS_NONE());  mrb_define_method(mrb, _class_thread, "alive?", mrb_thread_alive, ARGS_NONE());  mrb_define_module_function(mrb, _class_thread, "sleep", mrb_thread_sleep, ARGS_REQ(1));  _class_mutex = mrb_define_class(mrb, "Mutex", mrb->object_class);  mrb_define_method(mrb, _class_mutex, "initialize", mrb_mutex_init, ARGS_NONE());  mrb_define_method(mrb, _class_mutex, "lock", mrb_mutex_lock, ARGS_NONE());  mrb_define_method(mrb, _class_mutex, "try_lock", mrb_mutex_try_lock, ARGS_NONE());  mrb_define_method(mrb, _class_mutex, "locked?", mrb_mutex_locked, ARGS_NONE());  mrb_define_method(mrb, _class_mutex, "sleep", mrb_mutex_sleep, ARGS_REQ(1));  mrb_define_method(mrb, _class_mutex, "synchronize", mrb_mutex_synchronize, ARGS_REQ(1));  mrb_define_method(mrb, _class_mutex, "unlock", mrb_mutex_unlock, ARGS_NONE());}

/* *  A <code>Struct</code> is a convenient way to bundle a number of *  attributes together, using accessor methods, without having to write *  an explicit class. * *  The <code>Struct</code> class is a generator of specific classes, *  each one of which is defined to hold a set of variables and their *  accessors. In these examples, we'll call the generated class *  ``<i>Customer</i>Class,'' and we'll show an example instance of that *  class as ``<i>Customer</i>Inst.'' * *  In the descriptions that follow, the parameter <i>symbol</i> refers *  to a symbol, which is either a quoted string or a *  <code>Symbol</code> (such as <code>:name</code>). */voidmrb_init_struct(mrb_state *mrb){  struct RClass *st;  st = mrb_define_class(mrb, "Struct",  mrb->object_class);  mrb_define_class_method(mrb, st, "new",             mrb_struct_s_def,       ARGS_ANY());  /* 15.2.18.3.1  */  mrb_define_method(mrb, st,       "==",              mrb_struct_equal,       ARGS_REQ(1)); /* 15.2.18.4.1  */  mrb_define_method(mrb, st,       "[]",              mrb_struct_aref,        ARGS_REQ(1)); /* 15.2.18.4.2  */  mrb_define_method(mrb, st,       "[]=",             mrb_struct_aset,        ARGS_REQ(2)); /* 15.2.18.4.3  */  mrb_define_method(mrb, st,       "members",         mrb_struct_members_m,   ARGS_NONE()); /* 15.2.18.4.6  */  mrb_define_method(mrb, st,       "initialize",      mrb_struct_initialize_m,ARGS_ANY());  /* 15.2.18.4.8  */  mrb_define_method(mrb, st,       "initialize_copy", mrb_struct_init_copy,   ARGS_REQ(1)); /* 15.2.18.4.9  */  mrb_define_method(mrb, st,       "inspect",         mrb_struct_inspect,     ARGS_NONE()); /* 15.2.18.4.10(x)  */  mrb_define_alias(mrb, st,        "to_s", "inspect");                                      /* 15.2.18.4.11(x)  */  mrb_define_method(mrb, st,       "eql?",            mrb_struct_eql,         ARGS_REQ(1)); /* 15.2.18.4.12(x)  */}

voidmrb_init_print(mrb_state *mrb){  struct RClass *krn;  krn = mrb->kernel_module;  mrb_define_method(mrb, krn, "__printstr__", mrb_printstr, ARGS_REQ(1));  mrb_define_method(mrb, krn, "p",  p_m, ARGS_ANY());    /* 15.3.1.3.34 */}

/* #[<ENTRY_FUNC>]# eInitialize_initializeBridge * name:         eInitialize_initializeBridge * global_name:  nMruby_tSCharPointer_eInitialize_initializeBridge * oneway:       false * #[</ENTRY_FUNC>]# */voideInitialize_initializeBridge(mrb_state* mrb, struct RClass * TECS){	struct RClass *c;	/* ここに
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