c++ - "[Error] pointer value used where a floating point value was expected"如何解决此错误？

Question

我的代码如下 我想在下面的代码中将华氏温度转换为摄氏度，但我收到错误有人知道如何解决此错误吗？

#include <stdio.h>
int main()
{
    int frnhet[]={0,20,40,60,80,100,120,140,160,180,200,220,240,260,280,300};
    double celcius;
    int i;
    for(i=0;i<16;i++)
        {
      celcius = ((float)(5/9) + (float)(frnhet-32));
        printf("celcius = %f",celcius);
       }
     return 0;
 }

Answer 1

您在代码中错过了 frnhet 的索引。请引用以下代码 -

#include <stdio.h>

    int main()
    {
        int frnhet[]={0,20,40,60,80,100,120,140,160,180,200,220,240,260,280,300};
        double celcius;
        int i;
        for(i=0;i<16;i++)
            {
          celcius = ((float)(5/9) + (float)(frnhet[i]-32));
            printf("celcius = %f",celcius);
           }
         return 0;
     }