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using template to eliminate al

[问答题]

Below is usual way we find one element in an array

const int *find1(const int* array, int n, int x)
{
    const int* p = array;
    for(int i = 0; i < n; i++)
    {
        if(*p == x)
        {
            return p;
        }
    ++p;
    }
    return 0; 
}

In this case we have to bear the knowledge of value type "int", the size of array, even the existence of an array. Would you re-write it using template to eliminate all these dependencies?

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飞雨

template <class T>
const T *find1(const T* array, int n, T x)
{
    const T* p = array;
    for(int i = 0; i < n; i++)
    {
        if(*p == x)
        {
            return p;
        }
        ++p;
    }
    return 0; 
}

编辑于 2015-02-04 10:07:09 回复(0)

DOBH

  template<classT,int n> 

  constT *find1(constT (&array)[n], T x) 

  { 

      constT* p = array; 

      for(inti = 0; i < n; i++) 

      { 

          if(*p == x) 

          { 

              returnp; 

          } 

          ++p; 

      } 

      return0; 

  }