Tutorial by Examples

Jumps out of the nearest enclosing loop or switch statement. // print the numbers to a file, one per line for (const int num : num_list) { errno = 0; fprintf(file, "%d\n", num); if (errno == ENOSPC) { fprintf(stderr, "no space left on device; output will be t...

Jumps to the end of the smallest enclosing loop. int sum = 0; for (int i = 0; i < N; i++) { int x; std::cin >> x; if (x < 0) continue; sum += x; // equivalent to: if (x >= 0) sum += x; }

Introduces a do-while loop. // Gets the next non-whitespace character from standard input char read_char() { char c; do { c = getchar(); } while (isspace(c)); return c; }

Introduces a for loop or, in C++11 and later, a range-based for loop. // print 10 asterisks for (int i = 0; i < 10; i++) { putchar('*'); }

Introduces a while loop. int i = 0; // print 10 asterisks while (i < 10) { putchar('*'); i++; }

std::vector<int> primes = {2, 3, 5, 7, 11, 13}; for(auto prime : primes) { std::cout << prime << std::endl; }