c++ - How to pass vector as function argument to pointer -

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• how convert vector array in c++ 7 answers

i try pass vector function argument pointer compiler return error.

error: cannot convert 'std::vector' 'float*' in assignment

when have passed array in same way works perfectly. wrong here? possible assign vector pointer?

vector <float> test;  class data {     float *pointer;     int size;   public:       void init(vector <float> &test, int number); };  void data::init(vector <float> &test, int number) {     size= number;     pointer = test; } 

if want pointer array managed vector, that's

pointer = test.data();                       // c++11 or later pointer = test.empty() ? null : &test[0];    // primeval dialects 

beware invalidated if vector destroyed, or reallocates memory.