Stepping Up To C++

Listing 6 A maxlen function intended for both arrays of constant strings and arrays of non-constant strings

#include <iostream.h>
#include <string.h>

#define DIM(a) (sizeof(a)/sizeof(a[0]))

char *quintet[] =
   { "flute", "oboe". "horn", "clarinet", "bassoon" };
const char *quartet[] =
   { "violin", "violin", "viola", "cello" };
const char *const trio[] =
   { "washtub", "jaw harp", "kazoo" };

size_t maxlen(const char *const *t, size_t n)
   {
   size_t len = 0;
   size_t sl = 0;
   size_t i;
   for (i = 0; i < n; ++i)
      if ((sl = strlen(t[i])) > len)
         len = sl;
   return len;
   }

int main()
   {
   cout << maxlen(quintet, DIM(quintet)) << endl;
   cout << maxlen(trio, DIM(trio)) << endl;
   return 0;
   }
/* End of File */