c++ call-by-reference , 열혈c++ Chapter2 문제1, 문제3, 문제02-2 call-by-reference #include using namespace std; void swap(int& ref1, int& ref2) { int temp = ref1; ref1 = ref2; ref2 = temp; } int main() { int val1 = 10; int val2 = 20; swap(val1, val2); cout Programming/C++ 2021.08.15