functions.h

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float uatoi( char s[] )
{
   return( atof(s) );
}

int uuatoi( char s[] )
{
   int i, n;

   n = 0;
   for (i = 0; s[i] >= '0' && s[i] <= '9'; ++ i)
      n = 10 * n + (s[i] - '0');
   return n;
}