throw_away on Never create Ruby strings longer than 23 characters

Comment on Never create Ruby strings longer than 23 characters parent

They probably are when they are inlined like this, else, how would you know the length?

The length is stored in a flag.

include/ruby/ruby.h:

    #define RSTRING_EMBED_LEN(str) \
         (long)((RBASIC(str)->flags >> RSTRING_EMBED_LEN_SHIFT) & \
                (RSTRING_EMBED_LEN_MASK >> RSTRING_EMBED_LEN_SHIFT))

    #define RSTRING_LEN(str) \
        (!(RBASIC(str)->flags & RSTRING_NOEMBED) ? \
         RSTRING_EMBED_LEN(str) : \
         RSTRING(str)->as.heap.len)

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