c++ - ld: symbol(s) not found for architecture x86_64 Row::AddColumn -


building target: lab1 invoking: macos x c++ linker g++ -o "lab1" ./src/eclipser.o ./src/eclipser_test.o ./src/row.o ./src/rows.o
undefined symbols architecture x86_64: "row::addcolumn(int, std::__1::basic_string, std::__1::allocator >)", referenced from: _main in eclipser.o

row.h

#fndef row_h_ #define row_h_ #include <iostream> using namespace std; class row { public:     row();     row(std::string id);     string id;     string columns[24]     void addcolumn(int index, std::string value); }; #endif

row.cpp

#include "row.h" #include <iostream> #include <string> using namespace std;  string columns[24];  row::row(){     // todo }  row::row(string id) {     this->id = id;     cout << "id: " << this->id; }  row::~row() {     //deconstructor }  void addcolumn(int index, std::string value) {     columns[index] = value; }

i figured out issue.

in row.cpp class need change following

void addcolumn(int index, std::string value){...}

to

void row::addcolumn(int index, std::string value){...}

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