Empty string: Difference between revisions
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Strings are represented as an addr-len pair on the stack. An empty string has len 0. |
Strings are represented as an addr-len pair on the stack. An empty string has len 0. |
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<lang forth>: empty? ( |
<lang forth>: empty? ( c-addr u -- ? ) nip 0= ; |
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s" " dup . empty? . \ 0 -1</ |
s" " dup . empty? . \ 0 -1</lang> |
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=={{header|Go}}== |
=={{header|Go}}== |
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