CS 330 Lecture 22 – Cisms
March 30, 2015 by Chris Johnson. Filed under
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cs330, lectures, spring 2015.
Agenda
- what ?s
- exams
- Cisms
- types
- sizeof
- headers
- dynamic memory allocation
- addressable memory
- polymorphism
Code
sizes.cpp
#include <iostream>
int main(int argc, char **argv) {
printf("sizeof(short): %d\n", sizeof(short));
printf("sizeof(int): %d\n", sizeof(int));
printf("sizeof(long): %d\n", sizeof(long));
printf("sizeof(long long): %d\n", sizeof(long long));
return 0;
}
blackjack.c
#include <stdio.h>
#include <stdlib.h>
enum suit_t {
DIAMONDS,
HEARTS,
CLUBS,
SPADES
};
enum rank_t {
ACE = 1,
DEUCE,
THREE,
FOUR,
FIVE,
SIX,
SEVEN,
EIGHT,
NINE,
TEN,
JACK = 10,
QUEEN = 10,
KING = 10
};
struct card_t {
enum suit_t suit;
enum rank_t rank;
};
int score(struct card_t *hand, int ncards) {
int sum = 0;
int naces = 0;
for (int i = 0; i < ncards; ++i) {
if (hand[i].rank == ACE) {
++naces;
} else {
sum += hand[i].rank;
}
}
if (naces > 0) {
if (sum + 11 + naces - 1 <= 21) {
sum += 11 + naces - 1;
} else {
sum += naces;
}
}
return sum;
}
int main(int argc, char **argv) {
struct card_t hand[] = {
{CLUBS, JACK},
{SPADES, ACE},
};
printf("score(hand): %d\n", score(hand, 2));
return 0;
}
Haiku
on progress
Our parents learned C
So that we could learn Java
So our kids could sext