mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
#include <limits.h>
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#include <mruby.h>
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#include <mruby/numeric.h>
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/*
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* call-seq:
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* int.allbits?(mask) -> true or false
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*
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* Returns +true+ if all bits of <code>+int+ & +mask+</code> are 1.
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*/
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static mrb_value
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mrb_int_allbits(mrb_state *mrb, mrb_value self)
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{
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mrb_int n, m;
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mrb_get_args(mrb, "i", &m);
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n = mrb_int(mrb, self);
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return mrb_bool_value((n & m) == m);
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}
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/*
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* call-seq:
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* int.anybits?(mask) -> true or false
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*
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* Returns +true+ if any bits of <code>+int+ & +mask+</code> are 1.
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*/
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static mrb_value
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mrb_int_anybits(mrb_state *mrb, mrb_value self)
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{
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mrb_int n, m;
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mrb_get_args(mrb, "i", &m);
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n = mrb_int(mrb, self);
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return mrb_bool_value((n & m) != 0);
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}
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/*
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* call-seq:
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* int.nobits?(mask) -> true or false
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*
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* Returns +true+ if no bits of <code>+int+ & +mask+</code> are 1.
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*/
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static mrb_value
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mrb_int_nobits(mrb_state *mrb, mrb_value self)
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{
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mrb_int n, m;
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mrb_get_args(mrb, "i", &m);
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n = mrb_int(mrb, self);
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return mrb_bool_value((n & m) == 0);
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}
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void
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mrb_mruby_numeric_ext_gem_init(mrb_state* mrb)
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{
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struct RClass *i = mrb_module_get(mrb, "Integral");
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mrb_define_method(mrb, i, "allbits?", mrb_int_allbits, MRB_ARGS_REQ(1));
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mrb_define_method(mrb, i, "anybits?", mrb_int_anybits, MRB_ARGS_REQ(1));
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mrb_define_method(mrb, i, "nobits?", mrb_int_nobits, MRB_ARGS_REQ(1));
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#ifndef MRB_WITHOUT_FLOAT
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mrb_define_const(mrb, mrb->float_class, "RADIX", mrb_fixnum_value(MRB_FLT_RADIX));
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mrb_define_const(mrb, mrb->float_class, "MANT_DIG", mrb_fixnum_value(MRB_FLT_MANT_DIG));
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mrb_define_const(mrb, mrb->float_class, "EPSILON", mrb_float_value(mrb, MRB_FLT_EPSILON));
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mrb_define_const(mrb, mrb->float_class, "DIG", mrb_fixnum_value(MRB_FLT_DIG));
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mrb_define_const(mrb, mrb->float_class, "MIN_EXP", mrb_fixnum_value(MRB_FLT_MIN_EXP));
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mrb_define_const(mrb, mrb->float_class, "MIN", mrb_float_value(mrb, MRB_FLT_MIN));
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mrb_define_const(mrb, mrb->float_class, "MIN_10_EXP", mrb_fixnum_value(MRB_FLT_MIN_10_EXP));
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mrb_define_const(mrb, mrb->float_class, "MAX_EXP", mrb_fixnum_value(MRB_FLT_MAX_EXP));
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mrb_define_const(mrb, mrb->float_class, "MAX", mrb_float_value(mrb, MRB_FLT_MAX));
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mrb_define_const(mrb, mrb->float_class, "MAX_10_EXP", mrb_fixnum_value(MRB_FLT_MAX_10_EXP));
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#endif /* MRB_WITHOUT_FLOAT */
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}
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void
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mrb_mruby_numeric_ext_gem_final(mrb_state* mrb)
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{
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}
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