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instance method

String#succ!

string.succ! → self

static VALUE
rb_str_succ_bang(VALUE str)
{
    rb_str_modify(str);
    str_succ(str);
    return str;
}

Equivalent to String#succ, but modifies self in place; returns self.

See also #succ #sum #sub! #swapcase also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1