Changeset - r493:81627fa1b007
« 492:04c063
494:fb5af0 »
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alpar (Alpar Juttner)
alpar@cs.elte.hu
Own support for isnan()
0 2 0
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2 files changed with 15 insertions and 6 deletions:
lemon/lp_base.h
6
6
lemon/math.h
9
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lemon/lp_base.h
Ignore white space 4 line context
... ... 
@@ -598,9 +598,9 @@
598 598 
      ///Is the constraint lower bounded?
599 599 
      bool lowerBounded() const {
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        return _lb != -INF && !std::isnan(_lb);
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        return _lb != -INF && !isnan(_lb);
601 601 
      }
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      ///Is the constraint upper bounded?
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      bool upperBounded() const {
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        return _ub != INF && !std::isnan(_ub);
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        return _ub != INF && !isnan(_ub);
605 605 
      }
606 606 

			




	...
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@@ -1667,5 +1667,5 @@


			




	1667
	1667
	
		
                                   const LpBase::Constr &c) {


			




	1668
	1668
	
		
    LpBase::Constr tmp(c);


			




	1669
	
	
		
    LEMON_ASSERT(std::isnan(tmp.lowerBound()), "Wrong LP constraint");


			




	
	1669
	
		
    LEMON_ASSERT(isnan(tmp.lowerBound()), "Wrong LP constraint");


			




	1670
	1670
	
		
    tmp.lowerBound()=n;


			




	1671
	1671
	
		
    return tmp;


			




	...
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@@ -1679,5 +1679,5 @@


			




	1679
	1679
	
		
  {


			




	1680
	1680
	
		
    LpBase::Constr tmp(c);


			




	1681
	
	
		
    LEMON_ASSERT(std::isnan(tmp.upperBound()), "Wrong LP constraint");


			




	
	1681
	
		
    LEMON_ASSERT(isnan(tmp.upperBound()), "Wrong LP constraint");


			




	1682
	1682
	
		
    tmp.upperBound()=n;


			




	1683
	1683
	
		
    return tmp;


			




	...
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@@ -1691,5 +1691,5 @@


			




	1691
	1691
	
		
                                   const LpBase::Constr &c) {


			




	1692
	1692
	
		
    LpBase::Constr tmp(c);


			




	1693
	
	
		
    LEMON_ASSERT(std::isnan(tmp.upperBound()), "Wrong LP constraint");


			




	
	1693
	
		
    LEMON_ASSERT(isnan(tmp.upperBound()), "Wrong LP constraint");


			




	1694
	1694
	
		
    tmp.upperBound()=n;


			




	1695
	1695
	
		
    return tmp;


			




	...
	...
	
		
@@ -1703,5 +1703,5 @@


			




	1703
	1703
	
		
  {


			




	1704
	1704
	
		
    LpBase::Constr tmp(c);


			




	1705
	
	
		
    LEMON_ASSERT(std::isnan(tmp.lowerBound()), "Wrong LP constraint");


			




	
	1705
	
		
    LEMON_ASSERT(isnan(tmp.lowerBound()), "Wrong LP constraint");


			




	1706
	1706
	
		
    tmp.lowerBound()=n;


			




	1707
	1707
	
		
    return tmp;

			




        

    

    

    

        

            

                

                    lemon/math.h
                

                

                  
                  
                  
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@@ -56,4 +56,13 @@


			




	56
	56
	
		
  const long double SQRT1_2 = 0.7071067811865475244008443621048490L;


			




	57
	57
	
		

			




	
	58
	
		
  ///Check whether the parameter is NaN or not


			




	
	59
	
		
  


			




	
	60
	
		
  ///This function checks whether the parameter is NaN or not.


			




	
	61
	
		
  ///Is should be equivalent with std::isnan(), but it is not


			




	
	62
	
		
  ///provided by all compilers.


			




	
	63
	
		
  inline bool isnan(double v)


			




	
	64
	
		
    {


			




	
	65
	
		
      return v!=v;


			




	
	66
	
		
    }


			




	58
	67
	
		

			




	59
	68
	
		
  /// @}


			




        

    






    
    



    


    

     
    
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