c++ - referencing a vector -

i have code

void split(vector<float> &fvec, string str) {     int place = 0;         for(int i=0; i<str.length(); i++)         {             if(str.at(i) == ' ')             {                 fvec.push_back(atoi(str.substr(place,i-place).c_str()));                 place=i+1;             }         }         fvec.push_back(atoi(str.substr(place).c_str())); } 

what im trying pass reference vector method splits string give floats without copying vector... dont want copy vector because containing 1000's of numbers.

is not possible pass vector reference or making stupid mistake?

if helps heres code im testing out with

int main (void) {     vector<float> fvec;     string str = "1 2 2 3.5 1.1";      split(&fvec, str);      cout<<fvec[0];      return 0; } 

it indeed possible. you're using wrong syntax. correct way :

split(fvec, str); 

what you're doing wrong because passes address of vector intended reference.