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  1. #include <iostream>
  2. #include <algorithm> // std::copy, std::fill
  3.  
  4. class A {
  5.   public:
  6.   static const size_t Size=8;
  7.  
  8.   A(double a=0, double b=0, double c=0, double *ar=0):a_(a),b_(b),c_(c) { 
  9.      if (ar != 0) {
  10.        for (size_t i=0; i != Size; ++i)
  11.          ar_[i] = ar[i];
  12.      }
  13.      else {
  14.        for (size_t i=0; i != Size; ++i)
  15.          ar_[i] = 0;
  16.      }
  17.   }
  18.  
  19.   void print() const { 
  20.     std::cout << a_ << ' ' << b_ << ' ' << c_ << std::endl << '{';
  21.     for (size_t i=0; i != Size; ++i) {
  22.        if (i != 0) std::cout << ',';
  23.        std::cout << ar_[i];
  24.     }
  25.     std::cout << '}' << std::endl;
  26.   }
  27.  
  28.   private:
  29.     double a_, b_, c_;
  30.     double ar_[Size];
  31.  
  32. };
  33.  
  34. int main() {
  35. 	A a1;
  36.     a1.print();
  37.     A a2 (1,2,3);
  38.     a2.print();
  39.  
  40.     double x[A::Size] = { 11,12,13,14 };
  41.     A a3 (4,5,6,x);
  42.     a3.print();
  43.  
  44.     A a4 = a3;
  45.     a4.print();    
  46. }
Success #stdin #stdout 0s 3296KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
0 0 0
{0,0,0,0,0,0,0,0}
1 2 3
{0,0,0,0,0,0,0,0}
4 5 6
{11,12,13,14,0,0,0,0}
4 5 6
{11,12,13,14,0,0,0,0}
https://ideone.com/DiSxPK
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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