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Add defined?

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This commit is contained in:
Koichi Nakamura 2021-01-06 17:19:53 +09:00
parent ef3e15a3ca
commit 7f06ce6600
1 changed files with 3 additions and 0 deletions
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bootstrap.fs
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@ -2118,6 +2118,9 @@ codegen-target @ s" no-codegen" str= not [if]
abort
[then] [then] \ End of environment dependent code
: defined? ( "name" -- f )
word throw find <> 0
;
: need-defined ( "name" -- )
word throw dup find unless