method

external_encoding

Ruby latest stable (v2_5_5) - 0 notes - Class: StringIO

external_encoding() public

Returns the Encoding object that represents the encoding of the file. If strio is write mode and no encoding is specified, returns nil.

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static VALUE
strio_external_encoding(VALUE self)
{
    struct StringIO *ptr = StringIO(self);
    return rb_enc_from_encoding(get_enc(ptr));
}