36 lines
807 B
Plaintext
36 lines
807 B
Plaintext
dnl @ ../doc/m4.texi:6920: 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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sysval
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dnl @result{}0
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syscmd(`false')
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dnl @result{}
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ifelse(sysval, `0', `zero', `non-zero')
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dnl @result{}non-zero
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syscmd(`exit 2')
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dnl @result{}
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sysval
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dnl @result{}2
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syscmd(`true')
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dnl @result{}
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sysval
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dnl @result{}0
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esyscmd(`false')
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dnl @result{}
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ifelse(sysval, `0', `zero', `non-zero')
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dnl @result{}non-zero
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esyscmd(`echo dnl && exit 127')
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dnl @result{}
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sysval
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dnl @result{}127
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esyscmd(`true')
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dnl @result{}
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sysval
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dnl @result{}0
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