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.TH ERROR 5
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.SH NAME
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error \- return an error
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.SH SYNOPSIS
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.ta \w'\fLRerror 'u
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.IR size [4]
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.B Rerror
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.IR tag [2]
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.IR ename [ s ]
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.SH DESCRIPTION
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The
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.B Rerror
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message
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(there is no
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.BR Terror )
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is used to return an error string
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describing the
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failure of a transaction.
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It replaces the corresponding reply message
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that would accompany a successful call; its tag is that
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of the failing request.
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.PP
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By convention, clients may truncate error messages after
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.B ERRMAX-1
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bytes;
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.B ERRMAX
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is defined in
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.BR <libc.h> .