[Coin-lpsolver] some changes to compile Coin lp solver on Visual C++

[Michael.DeFeyter at aisystems.be]

Hi,
I've managed to compile coin lp solver on visual c++ 6.0, here's what I
needed to change:


PresolveDoubleton.cpp:
- line 18-28: added "#ifndef _MSC_VER"
     #ifndef _MSC_VER
     inline double max(double x, double y)
     {
       return (x < y) ? y : x;
     }

     inline double min(double x, double y)
     {
       return (x < y) ? x : y;
     }
     #endif


PresolveImpliedFree.cpp:
-line 437: changed "delete [] save_costs" to "deleteAction(save_costs)"


PresolveSubst.cpp:
-line 36-40:  added "#ifndef _MSC_VER"
     #ifndef _MSC_VER
     inline int min(int x, int y)
     {
       return (x < y) ? x : y;
     }
     #endif

- in function "subst_constraint_action::presolve", line 444:
     This is one of the big differences bewteen vc++ and other compilers,
if a variable is declared in like this: "for (int i =0; i < n; i++)", "i"
is still known outside the for loop in vc++. In order for the code to
compile on vc++ and allso on the other compilers, I had to declare k & kk
at the top of the function and remove all other declarations of k & kk.

- line 1351: changed "delete[]actions[i].costsx" to
"deleteAction(actions[i].costsx)"


PresolveZeros.cpp:
line 11-16: added "#ifndef _MSC_VER"
     #ifndef _MSC_VER
     inline double min(double x, double y)
     {
       return (x < y) ? x : y;
     }
     #endif


PresolveZeros.hpp:
line 31: changed "delete[]zeros_" to "deleteAction(zeros_)"


That's about it I guess.

Michael De Feyter