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[unix-history] / .ref-Research-V6 / usr / source / iolib / nodig.c

IEH3nodg (ch)
char ch;
{
if (IEH3digt(ch)) return (0);
switch (ch)
       {
       case 'E':
       case 'e':
       case '.': case '+': case '-':
               return (0);
       }
return (1);
}