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Text File  |  1979-12-31  |  256b  |  7 lines
  1. /*
  2. ** return 'true' if c is alphabetic
  3. */
  4. isalpha(c) int c; {
  5.   return ((c<='z' && c>='a') || (c<='Z' && c>='A'));
  6.   }
  7.