#include <stdio.h>
#include <string.h>

// THIS PROGRAM HAS SERIOUS AND DIFFICULT TO 
// NOTICE BUGS.  DO NOT COPY ANYTHING FROM HERE.

char* lower( char* pStr ) {
  char  result[128];  // '128' - ugh
  char* pResult;

  // odd but not all that unusual
  for ( pResult = result; *pStr; pStr++, pResult++ ) {
    *pResult = tolower(*pStr);
  }
  // terminate result string
  *pResult = '\0';

  pResult = result;
  return pResult;
}
// how many of each character are there?
int* countChars(char* pStr) {
  int cnt[256];
  int index;
  int* pResult = cnt;

  for (index=0; index<256; index++) cnt[index] = 0;

  for ( ; *pStr; pStr++ ) {
    printf ("'%c'\n", *pStr);
    cnt[*pStr]++;  // C converts a char to an int in the range of 0-255
  }
  return pResult;
}

int main( int argc, char* argv[] ) {
  char** pArgv;
  char*  pLower;
  int*   pCnt;

  for ( pArgv=argv+1; *pArgv; pArgv++ ) {
    printf( "\nOriginal: '%s'\n", *pArgv);

    pLower = lower(*pArgv);
    printf( "Lower: '%s'\n", pLower);

    pCnt = countChars(pLower);
    printf( "Number of 't's: %d\n",  pCnt['t']) ;

    printf("Lower2: '%s'\n", pLower);
  }

}