Loops/Break: Difference between revisions
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=={{header|Emacs Lisp}}== |
=={{header|Emacs Lisp}}== |
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<lang lisp>(defun |
<lang lisp>(defun wait_10 () |
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;; According to the emacs lisp maual, the definition of ``catch'' is: |
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;; (catch 'symbol ..BODY...) |
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;; it returns either the last expression evaluated in BODY or the value given by ``throw'' |
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(catch 'loop-break |
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(if (string= param "break") |
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(throw 'loop-break "breaked") |
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"pass") ) )</lang> |
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Example: |
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<lang lisp>(defun get-result (param) |
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(catch 'loop-break |
(catch 'loop-break |
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(while 't |
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(if (string= param "break") |
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(let ((math (random 19))) |
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(throw 'loop-break "breaked") |
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(if (= math 10) |
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"pass") ) ) |
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(progn (message "Found value: %d" math) |
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( |
(throw 'loop-break math)) |
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(message "current number is: %d" math) ) ) ) ) ) |
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;; returns "breaked" |
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(get-result "break") |
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;; returns "pass" |
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</lang> |
(wait_10)</lang> |
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=={{header|D}}== |
=={{header|D}}== |
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