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ASSERTS

#define DEBUG  #include <iostream>    #ifndef DEBUG      #define ASSERT(x)  #else      #define ASSERT(x) \          if (! (x)) \          { \              std::cout << "ERROR!! Assert " << #x << " failed\n"; \              std::cout << " on line " << __LINE__  << "\n"; \              std::cout << " in file " << __FILE__ << "\n";  \          }  #endif    int main()  {      int x = 5;      std::cout << "First assert: \n";      ASSERT(x==5);      std::cout << "\nSecond assert: \n";      ASSERT(x != 5);      std::cout << "\nDone.\n";      return 0;  } First assert: Second assert: ERROR!! Assert x != 5 failed on line 24 in file ASSERTS.cpp Done.