CODEWITHSUNDEEP
c++stringpointers
user2880330
user2880330

Reputation: 61

How to use a string value as param in function using string pointer variable as input parameter

This is the function I am coding now-

insertobjectnames(std::string clsname, std::string objname)

Now within the above function I have to invoke another function that takes as input the same parameters as above 2, but first one as string and second one as string pointer variable

The declaration for the second function is given below-

 int  analyse(const std::string key, std::string * key2)

How do I use the objname parameter from the first function to invoke the second function above? The second function (within itself) extracts the value of key2 from the parameters and then uses them as per requirements.

Upvotes: 0

Views: 71

Answers (1)

yizzlez
yizzlez

Reputation: 8805

The & operator in C++: its the address-of operator: basically a variable to pointer converter! Ex:

int a = 0;
int *pointertoa = &a;
//So
std::string s;
std::string *ps = &s; //Extracting the "key" ps is a pointer to s
analyse(key, &objname); //should be the right way to pass the parameter as a pointer

Upvotes: 1

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