error "expected initializer before 'using'" c++

im new here ,and new at proggraming in general . whem im trying to run this code: ``` #include<fstream> #include <iostream> #include "main.h" using namespace std; int main() { short arr_size () float temp; point point_arr[99]; ifstream my_file ("points.txt"); while(!my_file.eof()) { my_file>>temp ; point_arr[arr_size].set_x(temp); my_file>>temp ; point_arr[arr_size].set_y(temp); arr_size++; } arr_size--; my_file.close(); ex_point(point_array,arr_size); cout<<"the middle point is:("<<mid_p(point_array,arr_size).get_x()<<","<<mid_p(point_array,arr_size).get_y()<<")\n"; return 0; } ``` im getting this error : "error "expected initializer before 'using'" c++" this is the first time i get this error . it may be somthing wrong with "main.h" ? this is "main.h " : ``` #ifndef MAIN_H_INCLUDED #define MAIN_H_INCLUDED #include<iostream> class point { float x ,y ; public : point(float a,float b){x=a;y=b;} point(){}; void set_x(float a){x=a;}; void set_y(float b){x=b;}; const float get_x(){return x; }; const float get_y(){return y; }; const void show(); const float pitagoras(); }; const point mid_p(point[],float); const void ex_point(point[],float) #endif // MAIN_H_INCLUDED ``` thank you ! ivory