Add GetIpoptVersion (#505)

Author: odow

Project.toml

@@ -17,7 +17,7 @@ IpoptMathOptInterfaceExt = "MathOptInterface"
 
 [compat]
 HSL_jll = "3, 4, 2023, 2024, 2025"
-Ipopt_jll = "=300.1400.400, =300.1400.1400, =300.1400.1600, =300.1400.1700, =300.1400.1701, =300.1400.1900"
+Ipopt_jll = "=300.1400.1900"
 LinearAlgebra = "1"
 MathOptInterface = "1.25"
 OpenBLAS32_jll = "0.3.10"

ext/IpoptMathOptInterfaceExt/MOI_wrapper.jl

@@ -248,7 +248,7 @@ const _SETS = Union{
     MOI.Interval{Float64},
 }
 
-MOI.get(::Optimizer, ::MOI.SolverVersion) = Ipopt._version_string()
+MOI.get(::Optimizer, ::MOI.SolverVersion) = string(Ipopt.GetIpoptVersion())
 
 ### _EmptyNLPEvaluator
 

src/C_wrapper.jl

@@ -480,6 +480,16 @@ function GetIpoptCurrentViolations(
     return
 end
 
+function GetIpoptVersion()
+    major, minor, patch = Ref{Cint}(), Ref{Cint}(), Ref{Cint}()
+    @ccall libipopt.GetIpoptVersion(
+        major::Ptr{Cint},
+        minor::Ptr{Cint},
+        patch::Ptr{Cint},
+    )::Cvoid
+    return VersionNumber(major[], minor[], patch[])
+end
+
 # https://github.com/coin-or/Ipopt/blob/8f2b8efcd53d93518984597808db05dce43e348f/src/Interfaces/IpReturnCodes_inc.h#L13-L38
 #!format:off
 @enum(

src/Ipopt.jl

@@ -30,12 +30,9 @@ export IpoptProblem,
     OpenIpoptOutputFile,
     SetIpoptProblemScaling,
     SetIntermediateCallback,
+    GetIpoptVersion,
     IpoptSolve
 
-# This function is needed for MOI.SolverVersion, but we don't want to expose
-# Ipopt_jll to IpoptMathOptInterfaceExt.
-_version_string() = string(pkgversion(Ipopt_jll))
-
 # This function is needed by the MOI wrapper. It was previously exposed as
 # Ipopt.column, so we keep it here for backwards compatibility.
 function column end