C++ const_cast强制去掉常量属性

#include
  
   

using namespace std;

const int* find(int val,const int* t, int n);

int main(){
	int a[]={2, 4, 6};
	int* ptr;//不是const类型

	ptr=const_cast
   
    (find(4, a, 3));//去掉const类型 if(ptr == 0) cout<<"not found"<
     
       
     
 
     
 
     
 
      

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