如何在不冗长的情况下优雅地对C代码的多个部分进行计时？

#include <stdio.h>
#include <time.h>

void function1() {
    // 代码逻辑
}

void function2() {
    // 代码逻辑
}

int main() {
    clock_t start, end;
    double cpu_time_used;

    start = clock();
    function1();
    end = clock();
    cpu_time_used = ((double) (end - start)) / CLOCKS_PER_SEC;
    printf("function1 执行时间：%f 秒\n", cpu_time_used);

    start = clock();
    function2();
    end = clock();
    cpu_time_used = ((double) (end - start)) / CLOCKS_PER_SEC;
    printf("function2 执行时间：%f 秒\n", cpu_time_used);

    return 0;
}