[270] | 1 | /*
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[439] | 2 | ** etc.c
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[270] | 3 | **
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| 4 | ** See Copyright Notice in mruby.h
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| 5 | */
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| 6 |
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[331] | 7 | #include <mruby.h>
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| 8 | #include <mruby/string.h>
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| 9 | #include <mruby/data.h>
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| 10 | #include <mruby/class.h>
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[270] | 11 |
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| 12 | MRB_API struct RData*
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| 13 | mrb_data_object_alloc(mrb_state *mrb, struct RClass *klass, void *ptr, const mrb_data_type *type)
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| 14 | {
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| 15 | struct RData *data;
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| 16 |
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| 17 | data = (struct RData*)mrb_obj_alloc(mrb, MRB_TT_DATA, klass);
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| 18 | data->data = ptr;
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| 19 | data->type = type;
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| 20 |
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| 21 | return data;
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| 22 | }
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| 23 |
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| 24 | MRB_API void
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| 25 | mrb_data_check_type(mrb_state *mrb, mrb_value obj, const mrb_data_type *type)
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| 26 | {
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[439] | 27 | if (!mrb_data_p(obj)) {
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[270] | 28 | mrb_check_type(mrb, obj, MRB_TT_DATA);
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| 29 | }
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| 30 | if (DATA_TYPE(obj) != type) {
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| 31 | const mrb_data_type *t2 = DATA_TYPE(obj);
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| 32 |
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| 33 | if (t2) {
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[439] | 34 | mrb_raisef(mrb, E_TYPE_ERROR, "wrong argument type %s (expected %s)",
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| 35 | t2->struct_name, type->struct_name);
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[270] | 36 | }
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| 37 | else {
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[439] | 38 | mrb_raisef(mrb, E_TYPE_ERROR, "uninitialized %t (expected %s)",
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| 39 | obj, type->struct_name);
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[270] | 40 | }
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| 41 | }
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| 42 | }
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| 43 |
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| 44 | MRB_API void*
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| 45 | mrb_data_check_get_ptr(mrb_state *mrb, mrb_value obj, const mrb_data_type *type)
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| 46 | {
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[439] | 47 | if (!mrb_data_p(obj)) {
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[270] | 48 | return NULL;
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| 49 | }
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| 50 | if (DATA_TYPE(obj) != type) {
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| 51 | return NULL;
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| 52 | }
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| 53 | return DATA_PTR(obj);
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| 54 | }
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| 55 |
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| 56 | MRB_API void*
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| 57 | mrb_data_get_ptr(mrb_state *mrb, mrb_value obj, const mrb_data_type *type)
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| 58 | {
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| 59 | mrb_data_check_type(mrb, obj, type);
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| 60 | return DATA_PTR(obj);
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| 61 | }
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| 62 |
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| 63 | MRB_API mrb_sym
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| 64 | mrb_obj_to_sym(mrb_state *mrb, mrb_value name)
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| 65 | {
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[439] | 66 | if (mrb_symbol_p(name)) return mrb_symbol(name);
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| 67 | if (mrb_string_p(name)) return mrb_intern_str(mrb, name);
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| 68 | mrb_raisef(mrb, E_TYPE_ERROR, "%!v is not a symbol nor a string", name);
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| 69 | return 0; /* not reached */
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[270] | 70 | }
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| 71 |
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| 72 | MRB_API mrb_int
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[439] | 73 | #ifdef MRB_WITHOUT_FLOAT
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| 74 | mrb_fixnum_id(mrb_int f)
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| 75 | #else
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[270] | 76 | mrb_float_id(mrb_float f)
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[439] | 77 | #endif
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[270] | 78 | {
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| 79 | const char *p = (const char*)&f;
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| 80 | int len = sizeof(f);
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[439] | 81 | uint32_t id = 0;
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[270] | 82 |
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[439] | 83 | #ifndef MRB_WITHOUT_FLOAT
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| 84 | /* normalize -0.0 to 0.0 */
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| 85 | if (f == 0) f = 0.0;
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| 86 | #endif
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[270] | 87 | while (len--) {
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| 88 | id = id*65599 + *p;
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| 89 | p++;
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| 90 | }
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| 91 | id = id + (id>>5);
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| 92 |
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[439] | 93 | return (mrb_int)id;
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[270] | 94 | }
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| 95 |
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| 96 | MRB_API mrb_int
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| 97 | mrb_obj_id(mrb_value obj)
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| 98 | {
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| 99 | mrb_int tt = mrb_type(obj);
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| 100 |
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| 101 | #define MakeID2(p,t) (mrb_int)(((intptr_t)(p))^(t))
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| 102 | #define MakeID(p) MakeID2(p,tt)
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| 103 |
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| 104 | switch (tt) {
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| 105 | case MRB_TT_FREE:
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| 106 | case MRB_TT_UNDEF:
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| 107 | return MakeID(0); /* not define */
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| 108 | case MRB_TT_FALSE:
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| 109 | if (mrb_nil_p(obj))
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| 110 | return MakeID(1);
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| 111 | return MakeID(0);
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| 112 | case MRB_TT_TRUE:
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| 113 | return MakeID(1);
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| 114 | case MRB_TT_SYMBOL:
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| 115 | return MakeID(mrb_symbol(obj));
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| 116 | case MRB_TT_FIXNUM:
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[439] | 117 | #ifdef MRB_WITHOUT_FLOAT
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| 118 | return MakeID(mrb_fixnum_id(mrb_fixnum(obj)));
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| 119 | #else
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[270] | 120 | return MakeID2(mrb_float_id((mrb_float)mrb_fixnum(obj)), MRB_TT_FLOAT);
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| 121 | case MRB_TT_FLOAT:
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| 122 | return MakeID(mrb_float_id(mrb_float(obj)));
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[439] | 123 | #endif
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[270] | 124 | case MRB_TT_STRING:
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| 125 | case MRB_TT_OBJECT:
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| 126 | case MRB_TT_CLASS:
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| 127 | case MRB_TT_MODULE:
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| 128 | case MRB_TT_ICLASS:
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| 129 | case MRB_TT_SCLASS:
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| 130 | case MRB_TT_PROC:
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| 131 | case MRB_TT_ARRAY:
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| 132 | case MRB_TT_HASH:
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| 133 | case MRB_TT_RANGE:
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| 134 | case MRB_TT_EXCEPTION:
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| 135 | case MRB_TT_FILE:
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| 136 | case MRB_TT_DATA:
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[331] | 137 | case MRB_TT_ISTRUCT:
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[270] | 138 | default:
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| 139 | return MakeID(mrb_ptr(obj));
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| 140 | }
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| 141 | }
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| 142 |
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| 143 | #ifdef MRB_WORD_BOXING
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[439] | 144 | #ifndef MRB_WITHOUT_FLOAT
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[270] | 145 | MRB_API mrb_value
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| 146 | mrb_word_boxing_float_value(mrb_state *mrb, mrb_float f)
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| 147 | {
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| 148 | mrb_value v;
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| 149 |
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| 150 | v.value.p = mrb_obj_alloc(mrb, MRB_TT_FLOAT, mrb->float_class);
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| 151 | v.value.fp->f = f;
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[439] | 152 | MRB_SET_FROZEN_FLAG(v.value.bp);
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[270] | 153 | return v;
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| 154 | }
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| 155 |
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| 156 | MRB_API mrb_value
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| 157 | mrb_word_boxing_float_pool(mrb_state *mrb, mrb_float f)
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| 158 | {
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| 159 | struct RFloat *nf = (struct RFloat *)mrb_malloc(mrb, sizeof(struct RFloat));
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| 160 | nf->tt = MRB_TT_FLOAT;
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| 161 | nf->c = mrb->float_class;
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| 162 | nf->f = f;
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[439] | 163 | MRB_SET_FROZEN_FLAG(nf);
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[270] | 164 | return mrb_obj_value(nf);
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| 165 | }
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[439] | 166 | #endif /* MRB_WITHOUT_FLOAT */
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[270] | 167 |
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| 168 | MRB_API mrb_value
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| 169 | mrb_word_boxing_cptr_value(mrb_state *mrb, void *p)
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| 170 | {
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| 171 | mrb_value v;
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| 172 |
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| 173 | v.value.p = mrb_obj_alloc(mrb, MRB_TT_CPTR, mrb->object_class);
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| 174 | v.value.vp->p = p;
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| 175 | return v;
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| 176 | }
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| 177 | #endif /* MRB_WORD_BOXING */
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| 178 |
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| 179 | #if defined _MSC_VER && _MSC_VER < 1900
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| 180 |
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| 181 | #ifndef va_copy
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| 182 | static void
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| 183 | mrb_msvc_va_copy(va_list *dest, va_list src)
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| 184 | {
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| 185 | *dest = src;
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| 186 | }
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| 187 | #define va_copy(dest, src) mrb_msvc_va_copy(&(dest), src)
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| 188 | #endif
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| 189 |
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| 190 | MRB_API int
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| 191 | mrb_msvc_vsnprintf(char *s, size_t n, const char *format, va_list arg)
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| 192 | {
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| 193 | int cnt;
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| 194 | va_list argcp;
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| 195 | va_copy(argcp, arg);
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| 196 | if (n == 0 || (cnt = _vsnprintf_s(s, n, _TRUNCATE, format, argcp)) < 0) {
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| 197 | cnt = _vscprintf(format, arg);
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| 198 | }
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| 199 | va_end(argcp);
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| 200 | return cnt;
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| 201 | }
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| 202 |
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| 203 | MRB_API int
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| 204 | mrb_msvc_snprintf(char *s, size_t n, const char *format, ...)
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| 205 | {
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| 206 | va_list arg;
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| 207 | int ret;
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| 208 | va_start(arg, format);
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| 209 | ret = mrb_msvc_vsnprintf(s, n, format, arg);
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| 210 | va_end(arg);
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| 211 | return ret;
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| 212 | }
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| 213 |
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| 214 | #endif /* defined _MSC_VER && _MSC_VER < 1900 */
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