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cat <<'EOF' > expected
42
100 200
300
0
1 2 3
15
42
123
879
EOF
test_diff <<'EOF'
int printf();
#define ADD(a, b) ((a) + (b))
#define PRINT_TWO(x, y) printf("%d %d\n", x, y)
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define NESTED(x) (x)
#define CONCAT3(a, b, c) a ## b ## c
int main() {
printf("%d\n", ADD(40, 2));
PRINT_TWO(100, 200);
printf("%d\n", MAX(100 + 200, 250));
printf("%d\n");
NESTED((printf("1 "), printf("2 "), printf("3\n"), 0));
int x = 5, y = 10;
printf("%d\n", ADD(x + 2, y - 2));
printf("%d\n", ADD(MAX(10, 20), MAX(15 + 5, 22)));
printf("%d\n", ADD( 100 , 23 ));
printf("%d\n", ADD(NESTED((100 + 200)), MAX((123 + 456), (111 + 222))));
}
EOF
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