Lecture 7 Code

#include <stdio.h>
/**
* comment
*/

int main(int argc, char* argv[]) {
  printf("Hello, World!\n");
  return 0;
}

gcc hello.c # creates executable a.out
./a.out
gcc -o hello hello.c # creates executable hello
gcc -g -Wall -std=c11 -o hello hello.c # creates executable hello with debugging on
./hello

#include <stdio.h>
/**
* A summation function that uses recursion.
*/

int result = 0;

int sumTo(int max);

int main(int argc, char* argv[]) {
    sumTo(3);
    printf("Result is: %d\n", result);
}

int sumTo(int max) {
  if (max == 1) return 1;
  result = max + sumTo(max - 1);
  return result;
}

gcc -g -Wall -std=c11 -o sumTo sumTo.c
./sumTo