fivePointTwo() {
int i = 0;
int j = 1;
printf("Before exchange: i = %d, j = %d\n", i, j);
swap(&i, &j);
printf("After exchange: i = %d, j = %d\n", i, j);
// pass the address is the only way to change the value of variable from invoker.
changeIt(&i);
printf("After exchange i to 2008: i = %d\n", i);
}
int main(void) {
const int magic_number = 13017;
/* test min */
int a[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
printf("the smallest of the first 10 natural numbers is: %d\n", minIt(a, 10));
printf("the smallest of the first 10 natural numbers is: %d\n", minRec1(a, 10));
printf("the smallest of the first 10 natural numbers is: %d\n", minRec2(a, 10));
a[3] = -1;
printf("now the smallest is %d\n", minIt(a, 10));
printf("now the smallest is %d\n", minRec1(a, 10));
printf("now the smallest is %d\n", minRec2(a, 10));
/* test sqrt */
printf("the sqrt of 25 is %g\n", sqrtIt(25.0, 0, 25.0));
printf("the sqrt of 26 is %g\n", sqrtIt(26.0, 0, 26.0));
printf("the sqrt of 2 is %g\n", sqrtIt(2.0, 0, 2.0));
printf("the sqrt of 25 is %g\n", sqrtRec(25.0, 0, 25.0));
printf("the sqrt of 26 is %g\n", sqrtRec(26.0, 0, 26.0));
printf("the sqrt of 2 is %g\n", sqrtRec(2.0, 0, 2.0));
/* test strCompare */
char* s1; char* s2;
s1 = "apple"; s2 = "apricot";
if (strCompare(s1, s2) < 0) {
printf("\"%s\" is less than \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be less than \"%s\"\n", s1, s2);
}
s1 = "Apple"; s2 = "apple";
if (strCompare(s1, s2) < 0) {
printf("\"%s\" is less than \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be less than \"%s\"\n", s1, s2);
}
s1 = "baby boy"; s2 = "banana";
if (strCompare(s1, s2) < 0) {
printf("\"%s\" is less than \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be less than \"%s\"\n", s1, s2);
}
s1 = "a rather silly string"; s2 = "a rather silly string";
if (strCompare(s1, s2) == 0) {
printf("\"%s\" is equal to \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be equal to \"%s\"\n", s1, s2);
}
s1 = "12345"; s2 = "12345";
if (strCompare(s1, s2) == 0) {
printf("\"%s\" is equal to \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be equal to \"%s\"\n", s1, s2);
}
s1 = "Numbers: 12345"; s2 = "12345";
if (strCompare(s1, s2) > 0) {
printf("\"%s\" is greater than \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be greater than \"%s\"\n", s1, s2);
}
s1 = "Texas"; s2 = "California";
if (strCompare(s1, s2) > 0) {
printf("\"%s\" is greater than \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be greater than \"%s\"\n", s1, s2);
}
/* test strCompare2 */
s1 = "apple"; s2 = "Apricot";
if (strCompare2(s1, s2) < 0) {
printf("\"%s\" is less than \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be less than \"%s\"\n", s1, s2);
}
s1 = "Batman!"; s2 = "bat man";
if (strCompare2(s1, s2) == 0) {
printf("\"%s\" is equal to \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be equal to \"%s\"\n", s1, s2);
}
s1 = "OMG, WTF?"; s2 = "oh my goodness, what the heck?";
if (strCompare2(s1, s2) > 0) {
printf("\"%s\" is greater than \"%s\", very good\n", s1, s2);
} else {
printf("oops, \"%s\" should be greater than \"%s\"\n", s1, s2);
}
/* test maze */
srand(magic_number);
makeMaze();
recodeMaze();
printf("recursive solution to the maze\n");
printMaze();
solveMazeRec(0, start_col);
printMaze();
printf("\n\n\n");
printf("iterative solution to the maze\n");
srand(magic_number);
makeMaze();
recodeMaze();
printMaze();
solveMazeIt(0, start_col);
printMaze();
/* test Martian */
Martian change1 = changeIt(15);
printf("change 1 should be 0d, 3n, 0p and is: %dd %dn %dp\n", change1.dodeks, change1.nicks, change1.pennies);
Martian change2 = changeIt(0);
printf("change 2 should be 0d, 0n, 0p and is: %dd %dn %dp\n", change2.dodeks, change2.nicks, change2.pennies);
Martian change3 = changeIt(17);
printf("change 3 should be 1d, 1n, 0p and is: %dd %dn %dp\n", change3.dodeks, change3.nicks, change3.pennies);
Martian change4 = changeIt(25);
printf("change 4 should be 2d, 0n, 1p and is: %dd %dn %dp\n", change4.dodeks, change4.nicks, change4.pennies);
/* A very simple and obvious test of the general form of Martian
* be sure and test your solution more thoroughly!!!! */
change4 = changeIt(25, 5, 12);
printf("change 4 should be 2d, 0n, 1p and is: %dd %dn %dp\n", change4.dodeks, change4.nicks, change4.pennies);
}
