method
+

+(p1)
public
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static VALUE nurat_add(VALUE self, VALUE other) { switch (TYPE(other)) { case T_FIXNUM: case T_BIGNUM: { get_dat1(self); return f_addsub(self, dat->num, dat->den, other, ONE, '+'); } case T_FLOAT: return f_add(f_to_f(self), other); case T_RATIONAL: { get_dat2(self, other); return f_addsub(self, adat->num, adat->den, bdat->num, bdat->den, '+'); } default: return rb_num_coerce_bin(self, other, '+'); } }