Subversion Repositories mlite

/*count.c*/

void putchar(int);

int puts(const char*);

char *name[]={

   "","one","two","three","four","five","six","seven","eight","nine",

   "ten","eleven","twelve","thirteen","fourteen","fifteen",

      "sixteen","seventeen","eighteen","nineteen",

   "","ten","twenty","thirty","forty","fifty","sixty","seventy",

      "eighty","ninety"

};

#ifndef MLITE

int puts(const char *ptr)

{

   while(*ptr) {

      putchar(*ptr++);

   }

   return 0;

}

#endif

char *itoa(unsigned long num)

{

   static char buf[12];

   int i;

   buf[10]=0;

   for(i=9;i>=0;--i) {

      buf[i]=(char)((num%10)+'0');

      num/=10;

   }

   return buf;

}

#if 0

char *xtoa(unsigned long num)

{

   static char buf[12];

   int i,digit;

   buf[8]=0;

   for(i=7;i>=0;--i) {

      digit=num&0xf;

      buf[i]=digit+(digit<10?'0':'A'-10);

      num>>=4;

   }

   return buf;

}

#endif

void number_text(unsigned long number)

{

   int digit;

   puts(itoa(number));

   puts(": ");

   if(number>=1000000000) {

      digit=number/1000000000;

      puts(name[digit]);

      puts(" billion ");

      number%=1000000000;

   }

   if(number>=100000000) {

      digit=number/100000000;

      puts(name[digit]);

      puts(" hundred ");

      number%=100000000;

      if(number<1000000) {

         puts("million ");

      }

   }

   if(number>=20000000) {

      digit=number/10000000;

      puts(name[digit+20]);

      putchar(' ');

      number%=10000000;

      if(number<1000000) {

         puts("million ");

      }

   }

   if(number>=1000000) {

      digit=number/1000000;

      puts(name[digit]);

      puts(" million ");

      number%=1000000;

   }

   if(number>=100000) {

      digit=number/100000;

      puts(name[digit]);

      puts(" hundred ");

      number%=100000;

      if(number<1000) {

         puts("thousand ");

      }

   }

   if(number>=20000) {

      digit=number/10000;

      puts(name[digit+20]);

      putchar(' ');

      number%=10000;

      if(number<1000) {

         puts("thousand ");

      }

   }

   if(number>=1000) {

      digit=number/1000;

      puts(name[digit]);

      puts(" thousand ");

      number%=1000;

   }

   if(number>=100) {

      digit=number/100;

      puts(name[digit]);

      puts(" hundred ");

      number%=100;

   }

   if(number>=20) {

      digit=number/10;

      puts(name[digit+20]);

      putchar(' ');

      number%=10;

   }

   puts(name[number]);

   putchar('\n');

}

void main()

{

   unsigned long number,i;

#if 1

   puts("Mult by 3\n");

   number=3;

   for(i=0;i<100;++i) {

      number_text(number);

      number*=3;

   }

#else

   for(number=1;number<1000000;++number) {

      number_text(number);

   }

#endif

}