instance method
Symbol#downcase
() -> ::Symbol
(:ascii | :fold | :lithuanian | :turkic) -> ::Symbol
(:lithuanian, :turkic) -> ::Symbol
(:turkic, :lithuanian) -> ::Symbol
downcase(mapping) → symbol
string.c
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static VALUE
sym_downcase(int argc, VALUE *argv, VALUE sym)
{
return rb_str_intern(rb_str_downcase(argc, argv, rb_sym2str(sym)));
}