End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
Integer#succ
int.succ → integer
numeric.c
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VALUE
rb_int_succ(VALUE num)
{
if (FIXNUM_P(num)) {
long i = FIX2LONG(num) + 1;
return LONG2NUM(i);
}
if (RB_TYPE_P(num, T_BIGNUM)) {
return rb_big_plus(num, INT2FIX(1));
}
return num_funcall1(num, '+', INT2FIX(1));
}
Returns the successor of int, i.e. the Integer equal to int+1.
Example
1.next #=> 2 (-1).next #=> 0 1.succ #=> 2 (-1).succ #=> 0