28 lines
842 B
Plaintext
28 lines
842 B
Plaintext
dnl @ ../doc/m4.texinfo:3629: Origin of test
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dnl @ expected status: 0
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dnl @ extra options:
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dnl @ Copyright (C) 2006, 2007, 2008, 2009 Free Software
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dnl @ Foundation, Inc.
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dnl @ This file is free software; the Free Software Foundation
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dnl @ gives unlimited permission to copy and/or distribute it
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dnl @ with or without modifications, as long as this notice
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dnl @ is preserved.
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include(`curry.m4')include(`stack.m4')
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dnl @result{}
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define(`rename', `copy($@)undefine(`$1')')dnl
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define(`copy', `ifdef(`$2', `errprint(`$2 already defined
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')m4exit(`1')',
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`stack_foreach(`$1', `curry(`pushdef', `$2')')')')dnl
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pushdef(`a', `1')pushdef(`a', defn(`divnum'))pushdef(`a', `2')
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dnl @result{}
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copy(`a', `b')
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dnl @result{}
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rename(`b', `c')
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dnl @result{}
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a b c
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dnl @result{}2 b 2
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popdef(`a', `c')c a
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dnl @result{} 0
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popdef(`a', `c')a c
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dnl @result{}1 1
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