fix: correct initialization of 2D arrays to allow dimensions with matching subscript names

models/arrays_cname/arrays_cname.dat

@@ -341,6 +341,24 @@ s3iii[A1,B1,C1]
 SAVEPER
 0	1
 1	1
+sc[C1,C1]
+0	11
+sc[C1,C2]
+0	12
+sc[C1,C3]
+0	13
+sc[C2,C1]
+0	21
+sc[C2,C2]
+0	22
+sc[C2,C3]
+0	23
+sc[C3,C1]
+0	31
+sc[C3,C2]
+0	32
+sc[C3,C3]
+0	33
 t[A2]
 0	1
 t[A3]

models/arrays_cname/arrays_cname.mdl

@@ -2,6 +2,7 @@
 DimA: A1, A2, A3 -> DimB ~~|
 DimB: B1, B2, B3 ~~|
 DimC: C1, C2, C3 ~~|
+DimC': DimC ~~|
 DimD: D1, D2, D3, D4 ~~|
 SubA: A2, A3 ~~|
 DimX: SubA, A1 ~~|
@@ -93,6 +94,14 @@ s[DimA,DimD]=
 	~	2D constant array
 	|
 
+sc[DimC,DimC']=
+	11,12,13;
+	21,22,23;
+	31,32,33;
+	~
+	~	2D constant array where dimensions have matching subscript names
+	|
+
 s1d[DimA] = 1 ~~|
 s1i[A1] = 1 ~~|
 

models/arrays_cname/arrays_cname_spec.json

@@ -1,5 +1,35 @@
 {
   "name": "Arrays test model (where the spec file contains C names with numeric subscript indices)",
   "inputVars": ["_inputa[0]", "_inputa[1]", "_inputa[2]"],
-  "outputVars": ["_time", "_a[0]", "_a[1]", "_a[2]", "_f[0][0]", "_f[0][1]", "_f[0][2]", "_h"]
+  "outputVars": [
+    "_time",
+    "_a[0]",
+    "_a[1]",
+    "_a[2]",
+    "_f[0][0]",
+    "_f[0][1]",
+    "_f[0][2]",
+    "_h",
+    "_s[0][0]",
+    "_s[0][1]",
+    "_s[0][2]",
+    "_s[0][3]",
+    "_s[1][0]",
+    "_s[1][1]",
+    "_s[1][2]",
+    "_s[1][3]",
+    "_s[2][0]",
+    "_s[2][1]",
+    "_s[2][2]",
+    "_s[2][3]",
+    "_sc[0][0]",
+    "_sc[0][1]",
+    "_sc[0][2]",
+    "_sc[1][0]",
+    "_sc[1][1]",
+    "_sc[1][2]",
+    "_sc[2][0]",
+    "_sc[2][1]",
+    "_sc[2][2]"
+  ]
 }

src/EquationGen.js

@@ -958,18 +958,17 @@ export default class EquationGen extends ModelReader {
         modelLHSReader.read(this.var.modelLHS)
         let cNames = modelLHSReader.names().map(Model.cName)
         // Visit dims in normal order. Find the ind in the dim. Compose the C array expression with numeric indices.
-        for (let dim of this.var.separationDims) {
-          let sepDim = sub(dim)
-          for (let ind of this.var.subscripts) {
-            let i = sepDim.value.indexOf(ind)
-            if (i >= 0) {
-              let indexNum = sub(ind).value
-              if (!cVarName) {
-                cVarName = `${this.var.varName}[${indexNum}]`
-              } else {
-                cVarName += `[${indexNum}]`
-              }
-              break
+        for (let i = 0; i < this.var.separationDims.length; i++) {
+          const dim = this.var.separationDims[i]
+          const sepDim = sub(dim)
+          const ind = this.var.subscripts[i]
+          const j = sepDim.value.indexOf(ind)
+          if (j >= 0) {
+            const indexNum = sub(ind).value
+            if (!cVarName) {
+              cVarName = `${this.var.varName}[${indexNum}]`
+            } else {
+              cVarName += `[${indexNum}]`
             }
           }
         }