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isxdigit.c
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C/C++ Source or Header
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1993-02-10
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297b
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21 lines
/*
isxdigit.C
Copyright (C) 1993, Geoff Friesen B.Sc.
All rights reserved.
*/
#define INCL_ISXDIGIT
#ifndef INCL_ISALNUM
#include "isalnum.C"
#endif
#ifndef INCL_TOUPPER
#include "toupper.C"
#endif
int isxdigit (int c)
{
return (isalnum (c) && toupper (c) <= 'F');
}