Question

我正在尝试实现一个简单的C程序来自学指针。每当我运行它时，我都会得c warning: assignment makes pointer from integer without a cast [enabled by default]。我对这个问题有所了解，但我是C的初学者，我不知道如何解决它。请协助。

 #include <stdio.h>
 #include <math.h>

void print_time(long input, int *hours, int *minutes, int * seconds);

int main() {

   //char message[30];
   //int message_size;
   int hours, minutes, seconds;
   long input;

   printf("Enter the number of seconds: ");
   scanf("%ld",&input);

   print_time(input, &hours, &minutes, &seconds);

   printf("The equivalent is: %d hour(s), %d minute(s), %d second(s).", hours,minutes,seconds);
   return 0;
}

void print_time(long input, int *hours, int *minutes, int * seconds){
    hours = (int)floor(input/3600);
    minutes = (int)floor((input%3600)/60);
    seconds = (int)input - (hours*3600)-(minutes*60);

}

Answer 1

试试这个......

void print_time(long input, int *hours, int *minutes, int * seconds){
    *hours = (int)floor(input/3600);
    *minutes = (int)floor((input%3600)/60);
    *seconds = (int)input - (hours*3600)-(minutes*60);
}

你将指针传递给整数并将它们视为整数。

在C中输入铸造错误

1 个答案: