-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | A GLPK backend to the math-programming library.
--   
--   Please see the <a>README on GitHub</a>.
@package math-programming-glpk
@version 0.5.0


-- | A <a>GLPK</a> backend to the <a>Programming</a> library.
--   
--   This package allows both linear and mixed-integer programs to be
--   solved.
module Math.Programming.Glpk
type Glpk = GlpkT IO

-- | A reference to a GLPK variable.
type GlpkVariable = GlpkPtr Column

-- | A reference to a GLPK constraint.
type GlpkConstraint = GlpkPtr Row

-- | A placeholder for an objective.
--   
--   GLPK supports only single-objective problems, and so no indices need
--   to be stored.
data GlpkObjective
runGlpk :: Glpk a -> IO a
writeFormulation :: MonadGlpk m => FilePath -> m ()

-- | An environment to solve math programs using GLPK.
data GlpkT m a
class (MonadLP GlpkVariable GlpkConstraint GlpkObjective m, MonadIP GlpkVariable GlpkConstraint GlpkObjective m) => MonadGlpk m

-- | An interface to the low-level GLPK API.
--   
--   High-level solver settings can be modified by altering the
--   <a>SimplexMethodControlParameters</a> and <a>MIPControlParameters</a>
--   values for LP and IP solves, respectively.
data GlpkEnv

-- | An error that GLPK can encounter.
data GlpkException