write qvector in csv file

Albator

Hey qt people,

I have a question to write csv file,

I have 3 QVector<double> a,b,c
a = (1,2,3,4)
b = (0,0,0)
c = (10.2)

i want write a file csv like this:
1;0;10.2
2;0;
3;0;
4;;

but the size is different, with the same size is simple :

int cpt=0;
while(a.size!=cpt)
{
      flux<<a<<";"<<b<<";"<<c<<endl
}

but with different size how to do ?

jsulm

@Albator said in write qvector in csv file:

but with different size how to do ?

use for-loop, take the max length from these 3 vectors and inside the loop check whether the current index is valid for each vector.

VRonin

const QVector<double>* vects[] = {&a,&b,&c};

for(int i=0, maxI = std::max_element(sid::begin(vects), std::end(vects ),[](const QVector<double>* left, const QVector<double>* right)->bool{return left->size()<right->size();})->size();i<maxI;++i){
    for(auto&& vec : vects){
        if(i < vec->size())
            flux<<vec->at(i)
        flux <<";"
    }
    flux<<endl;
}

Albator

It works perfectly!
thanks for the help for the third or fourth time ahah!