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  1. extern int no_symbol;
  2.  
  3. constexpr float MyMin (float a, float b)
  4.  {
  5.    return a != a ? throw (no_symbol)
  6.                  : (a < b ? a : b) ;
  7.  }
  8.  
  9. int main()
  10.  {
  11.    constexpr  float  m0 { MyMin(2.0f, 3.0f) }; // OK
  12.  
  13.    float  f1 { 2.0f };
  14.  
  15.    float  m1 { MyMin(f1, 3.0f) };  // linker error: undefined "no_symbol"
  16.  }
Success #stdin #stdout 0s 3464KB
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https://ideone.com/YbamLw
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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