Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →
instance method
StringIO#size
() -> ::Integer
size → integer
ext/stringio/stringio.c
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static VALUE
strio_size(VALUE self)
{
VALUE string = StringIOForRead(self)->string;
if (NIL_P(string)) {
return INT2FIX(0);
}
return ULEN2NUM((rb_ulen_t)RSTRING_LEN(string));
}
Returns the number of bytes in the string in self:
Example
StringIO.new('hello').size # => 5 # Five 1-byte characters. StringIO.new('こんにちは').size # => 15 # Five 3-byte characters.
See also
#set_encoding_by_bom
#string
#set_encoding
#string=
also in
4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0