将枚举数组转换为int指针

Question

I'm getting the complaint from complier when trying to convert a array of enum to an pointer of int.

void format(const int *values);
// convert and call format
format(static_cast<const int*>(EnumArray));

// error from compiler
error: invalid static_cast from type 'const EnumArray[15]' to type 'const int*'

Any way to get around it? Thanks!

Answer 1

Seems I can solve it with template. It compiles and runs.

    template<typename T>
    String8  format(const T *values)
    {
          //use values as array of int
          int v = values[i];
    }

    //call it
    format(EnumArray); // no type needed since it can be deduced

Answer 2

如果您完全知道自己在做什么，则可以使用reinterpret_cast 。

format(reinterpret_cast<const int*>(EnumArray));