以下宏作用分別為，求兩個數(shù)最小值，三個數(shù)最小值，打印一個數(shù)組和打印一個數(shù)組元素總和。
#include "stdio.h"#define MINI2(x, y) ((x) <= (y)) ? (x) : (y)#define MINI3(x, y, z) MINI2(MINI2(x, y), MINI2(y, z))#define PRINTARRAY(arr, size) int i = 0; for (; i < (size); i++) printf("%d/n", arr[i]);#define SUMARRAY(arr, size) int i = 0, sum = 0; for (; i < (size); i++) sum += arr[i]; /printf("%d/n", sum);#define DEBUG 3int main(int argc, char const *argv[]){ #if DEBUG == 1 int x, y, z; scanf("%d %d", &x, &y); printf("%d/n", MINI2(x, y)); scanf("%d %d %d", &x, &y, &z); printf("%d/n", MINI3(x, y, z)); #elif DEBUG == 2 int arr[5] = {1, 2, 3, 4, 5}; PRINTARRAY(arr, 5) #elif DEBUG == 3 int arr[5] = {1, 2, 3, 4, 5}; SUMARRAY(arr, 5) #endif return 0;}新聞熱點
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