vector understanding

This is abou vector

PHP Code:

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#include<vector>

void vect(std::vector<int>b, int i){
    b.remove(i);
}

void main(){
    std::vector<int> h; 
    vect(h,1);

    double x=0, y=0    ;
    h.push_back(x);
    h.push_back(y);
    return 0;
} 


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But it gave me a lot of error I don't understand :(. This is part of a a smell project at school.
If u give more more advice, i promise you i will be back to say more thanks.

Thanks for your inputs, you are helpfull, very full.
Douglas999

1) You need to pass the vector by reference, not by value.

2) I assume you are gtrying to remove the i-th element from the
vector. The member function is called erase(), not remove(). Also
it takes an iterator, not an index.

Code:

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void vect(std::vector<int> & b, int i){
//assumes that there are at least (i+1) elements in the vector
    b.erase(b.begin()+i);
}

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Code:

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std::vector<int> h;
    vect(h,1);

    double x=0, y=0    ;
    h.push_back(x);
    h.push_back(y);

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You are also trying to push doubles onto a int vector..

Quote:

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void main(){

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The correct function prototype is int main.

Quote:

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std::vector<int> h;
vect(h,1);

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What is it supposed to do?
Remove the second (vector begin at 0) element of an empty vector.

Perhaps, you should move that operation after the second push_back method call.

Code:

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#include <vector>

void vect(std::vector<int> b, std::vector<int>::size_type i){ // std::vector<int>::size_type is an unsigned integer whose size is adequate for vector indexing
  b.erase(b.begin()+i);
}

int main(){
    std::vector<int> h;

    int x=0, y=0    ;
    h.push_back(x);
    h.push_back(y);
    vect(h,1); // this operation and the previous mutually anihilate themselves.
    return 0;
}

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