What should I do if I want to change the value of a vector structure in another class?
Below is the current state of the code.
Structure
classst{
structure hoge {
int score1;
int score2;
intsum;
}
}
class data {
public:
vector<TestScore>*Data::GetData(){
return&_studentScore;
}
}
class cal {
public:
int sumCal(vector<hoge>*sScore){
sScore[i]->sum=sScore[i]->score1+sScore[i]->score2;
}
}
If you try to access the core1,2 of the structure with the sumCal function of the above code with the Arrow operator,
A warning will be issued that a pointer type is required for the ceremony.
->* will fail if core1 does not exist.
The question title says "reference", but the source code provided is not a reference.There seems to be some confusion about the relationship between reference, pointer, and substance.
The suggested source uses the pointer to vector in the function sumCal, but I guess this is probably wrong and what I really want to do is refer to vector.Then the function declaration is
int sumCal (vector<hoge>&sScore)
It must be .And vector<hoge> stores the value of hoge itself, so to access score1 and so on in a function, it should be . instead of ->.Results
int sumCal(vector<hoge>&sScore){
sScore[i].sum=sScore[i].score1+sScore[i].score2;
}
I guessed that might be the code you wanted to write.
There are a lot of things like where i came from and there is no return value for sumCal, but I think that's going to get off the point, so I have to go through it.
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