gmtime算法的最小实现

c++
#include 
#include 
void gmtime_minimal(time_t timestamp){
    struct tm *timeinfo;
    timeinfo = gmtime(×tamp);
    
    printf("GMT time: %s", asctime(timeinfo));
}
int main(){
    time_t current_time;
    time(¤t_time);
    
    gmtime_minimal(current_time);
    
    return 0;
}

GMT time: Sat Jan 1 04:00:00 2022