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	int isalpha(<[c]>);
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	int isalpha(<[c]>);
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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 when <[c]> represents an
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lookup.  It is a predicate returning non-zero when <[c]> represents an
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alphabetic ASCII character, and 0 otherwise.  It is defined only when
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alphabetic ASCII character, and 0 otherwise.  It is defined only if
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<>(<[c]>) is true or <[c]> is EOF.
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<[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