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DESCRIPTION
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DESCRIPTION
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<> is a macro which classifies ASCII integer values by table
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<> is a macro which classifies ASCII integer values by table
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lookup.  It is a predicate returning non-zero for printable
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lookup.  It is a predicate returning non-zero for printable
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punctuation characters, and 0 for other characters.  It is defined
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punctuation characters, and 0 for other characters.  It is defined only
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only when <>(<[c]>) is true or <[c]> is EOF.
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if <[c]> is representable as an unsigned char or if <[c]> is EOF.
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You can use a compiled subroutine instead of the macro definition by
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You can use a compiled subroutine instead of the macro definition by
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undefining the macro using `<<#undef ispunct>>'.
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undefining the macro using `<<#undef ispunct>>'.