WIP : MOI wrapper (based on LQOI) (#27)

* MOI interface through LQOI (Partially implemented)

* more impl.

* Finished first impl and fixed tests.

* updated to use CSR struct

* minor updates. more tests

* a few fixes

* using copy!

* removed some commented out code

* minor modifs

* some fixes

* exculded test linear11

* removed the LQOI version upperbound

* limited LQOI to 2.0 inclusive

* Tidy up. Remove unneeded docstrings, fix a few functions, enable
more tests.

* Handle infeasiblity certificates and other matters:

* Minor re-org

* Remove unneeded code

* Exclude linear11 test

* minor updates

* renaming ClpOptimizer --> Clp.Optimizer

* update requires

* enabled a test, added 0.7 to travis

.travis.yml

@@ -4,11 +4,11 @@ os:
   - osx
 julia:
   - 0.6
-  - nightly
+  - 0.7
 notifications:
   email: false
 script:
   - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi
   - julia -e 'Pkg.clone(pwd()); Pkg.build("Clp"); Pkg.test("Clp"; coverage=true)'
-#after_success:
-    #- julia -e 'cd(Pkg.dir("Clp")); Pkg.add("Coverage"); using Coverage; Coveralls.submit(Coveralls.process_folder())'
+after_success:
+    - julia -e 'cd(Pkg.dir("Clp")); Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder())'

REQUIRE

@@ -1,3 +1,5 @@
 julia 0.6
+Compat 0.59
 Cbc
 MathProgBase 0.5 0.8
+LinQuadOptInterface 0.3 0.4

src/Clp.jl

@@ -6,9 +6,11 @@ __precompile__()
 
 module Clp
 
+using Compat
 
 include("ClpCInterface.jl")
 include("ClpSolverInterface.jl")
+include("MOIWrapper.jl")
 
 using Clp.ClpMathProgSolverInterface
 export ClpSolver

src/ClpCInterface.jl

@@ -19,7 +19,9 @@ export
     resize,
     delete_rows,
     add_rows,
+    add_row,
     delete_columns,
+    add_column,
     add_columns,
     chg_row_lower,
     chg_row_upper,
@@ -414,16 +416,30 @@ function add_rows(model::ClpModel, number::Integer, row_lower::Vector{Float64},
         row_starts::Vector{Int32}, columns::Vector{Int32},
         elements::Vector{Float64})
     _jl__check_model(model)
-
     @clp_ccall addRows Void (Ptr{Void}, Int32, Ptr{Float64}, Ptr{Float64}, Ptr{Int32}, Ptr{Int32}, Ptr{Float64}) model.p number row_lower row_upper row_starts columns elements
 end
 
+#This function exists in cpp but not c interface
+function add_row(model::ClpModel, nnz::Cint, columns::Vector{Int32},
+                 elements::Vector{Float64}, row_lower::Float64, row_upper::Float64)
+    add_rows(model, 1, [row_lower], [row_upper], [Cint(0), nnz], columns,
+             elements)
+end
+
 # Delete columns.
 function delete_columns(model::ClpModel, which::Vector{Int32})
     _jl__check_model(model)
     @clp_ccall deleteColumns Void (Ptr{Void},Int32,Ptr{Int32}) model.p length(which) which
 end
 
+#This function exists in cpp but not c interface
+function add_column(model::ClpModel, nnz::Int32,  rows::Vector{Int32},
+                elements::Vector{Float64}, column_lower::Float64,
+                column_upper::Float64, objective::Float64)
+    add_columns(model, 1, [column_lower], [column_upper], [objective],
+                [Int32(0), nnz], rows, elements)
+end
+
 # Add columns.
 function add_columns(model::ClpModel, number::Integer, column_lower::Vector{Float64},
         column_upper::Vector{Float64},
@@ -440,7 +456,6 @@ function add_columns(model::ClpModel, column_lower::Vector{Float64},
         column_upper::Vector{Float64},
         objective::Vector{Float64},
         new_columns::SparseMatrixCSC{Float64,Int32})
-
     add_columns(model, new_columns.n, column_lower, column_upper, objective, new_columns.colptr-convert(Int32,1), new_columns.rowval-convert(Int32,1), new_columns.nzval)
 end